Hans Asperger - Autistic Traits in Children and Adults

The following is a comprehensive extraction of every trait described by Hans Asperger in his 1944 monograph "Die 'Autistischen Psychopathen' im Kindesalter," drawn from the complete German text including the theoretical introduction, all four case studies, the systematic clinical picture, and the genetic and social-value discussions. Each trait is described as Asperger presented it in childhood, then mapped onto the presentation of a high-functioning autistic adult after decades of learning, masking, compensation, and life experience.

Constitutional and physical traits

Asperger observes that autistic children shed their baby features unusually early. Instead of the soft, plump, undifferentiated face of early childhood, they develop finely chiselled, sharply defined, often princely-delicate features — at times with a slightly degenerate-aristocratic cast. The face looks as though early thinking has sculpted it; a furrowed brow often betrays a worried, introspective quality. Fritz V., at six years old, is described as tall and thin, eleven centimetres above the average height for his age, with a delicate skeleton, weakly developed musculature, and greyish-yellowish skin lacking freshness and turgor, through which the veins of the subcutaneous tissue are clearly visible at the temples and upper thorax. His posture is slack, his shoulders droop, his shoulder blades protrude. Harro L., by contrast, is short and stocky, four centimetres below the average, with powerful musculature; he looks somewhat "misbuilt," as though his extremities were too short, and he resembles a miniature adult. Ernst K. is tall and very thin with drooping shoulders, handsome and finely articulated features, but marred by large, somewhat protruding, unattractively formed ears. He is especially vasolabile — when embarrassed or excited, sharply demarcated bright red blotches appear on his face and large beads of sweat form on the bridge of his nose. Hellmuth L., the post-encephalitic case, presents a grotesque appearance: a massive body with a large face and hanging cheeks, topped by a tiny skull approaching microcephaly, with close-set little eyes. He is grotesquely obese, with pronounced fat breasts and emphasized hips, and his joints are extraordinarily hyperextensible — shaking his hand feels as though he has no bones, as though it were made of rubber. He has knock knees and flat feet, increased salivation, and bilateral cryptorchidism.

In the adult, the early loss of babyish softness translates into a face that often retains a somewhat ageless quality well into middle age — a forty-year-old autistic man may still have the fine-boned, sharply defined features of his childhood, though the furrowed brow has deepened into permanent creases that colleagues read as intensity or worry. The slack posture that Asperger repeatedly notes often persists: the adult may be repeatedly told to "stand up straight" and may consciously correct his posture for a few minutes in professional settings before slumping again when his attention wanders. The vasolability, the tendency to flush bright red when embarrassed, often persists into adulthood and can be a source of considerable social anxiety — a thirty-five-year-old autistic woman, asked an unexpected question during a team meeting, may feel the heat rise up her neck and across her cheeks and know that everyone can see it, which only intensifies the flush. She may learn to wear high-collared shirts or scarves to conceal this response. The thinness, the delicate skeleton, and the weak musculature that Asperger describes in many cases may persist as a wiry, lean build well into adulthood, often accompanied by a striking indifference to food that Asperger also notes: the adult may forget to eat when absorbed in work, may find eating an interruption rather than a pleasure, and may need to set phone alarms to remember meals.

Motor clumsiness and practical ineptitude

Asperger returns repeatedly to the theme of motor clumsiness. Fritz V. learned to walk only at fourteen months and remained for a long time especially clumsy and dependent, mastering the practical routines of daily life very late and with great difficulty. In physical education, he could never be physically relaxed, never swung with any rhythm, did not master his body. His handwriting was atrocious: the pencil would not obey his cramped hands; he would suddenly cover an entire page with great swirls, drill holes into the exercise book with the lead, or tear the page or the entire book apart. Harro L. is similarly described as especially clumsy; he cannot properly control his motor system, cannot determine where he aims, and his movements in physical education remain angular and ugly even when he makes a conscious effort. Nothing occurs naturally or spontaneously — everything is willed, everything is "intellectual." Ernst K. has handwriting so poor that one can barely tell what any word is meant to be; letters are omitted, inserted, or transposed; some letter forms are so distorted as to be unrecognizable. Hellmuth L. cannot possibly catch a ball, no matter how easy one makes it for him, and his movements when trying to catch or throw are extremely comical — a frozen colossus amid a group of playing children.

Behind this motor clumsiness, Asperger discerns a deeper problem: the difficulty of automatisation, of "Mechanisierung." Normal children learn practical skills by unconscious imitation and repetition; autistic children must learn everything through the intellect, through conscious, willed effort. They are, as Asperger puts it bluntly, "Intelligenzautomaten" — intelligence automata. Social adaptation must proceed via the intellect; they have to learn everything, including the simple daily chores, like proper schoolwork, systematically. This difficulty with automatisation extends to writing, spelling, the multiplication tables, reading — all the mechanical aspects of learning that even the least clever children master relatively easily.

In the adult, motor clumsiness often persists in subtle forms that can be masked but never fully eliminated. A forty-year-old autistic software engineer may have handwriting that remains an illegible scrawl, and he long ago learned to type everything. His desk at work is a controlled environment: everything has its place, and he does not bump into things because he has memorized the spatial layout. But in an unfamiliar room — a hotel lobby, a friend's new apartment — he may knock over a glass of water, trip on a rug edge, or misjudge the distance to a doorframe and clip his shoulder. He has learned to laugh this off with a self-deprecating remark, but inwardly he feels a spike of frustration each time. At home, when he is tired and the mask is down, his movements become noticeably more awkward; his partner knows that when he starts dropping things, he needs to rest.

The difficulty with automatisation — the need to process through the intellect what others absorb unconsciously — is perhaps the most enduring and consequential trait in adult life. A thirty-eight-year-old autistic administrator has a laminated checklist taped to her bathroom mirror for her morning routine, because without it she will forget steps: she might wash her face but skip brushing her teeth, or put on deodorant twice and forget to comb her hair. None of this is visible to her colleagues, who see only a meticulously organized professional. What they do not see is that her entire life is scaffolded by checklists, alarms, and explicit rules she has constructed over decades — rules for how to greet someone, how long to maintain eye contact, what to say when someone sneezes, how to structure a casual email. When a routine breaks — when the office moves to a new building, when her regular train line is closed for repairs — she experiences a cascade of anxiety and disorientation that her neurotypical colleagues find disproportionate. She may need to take a sick day, not because she is physically ill, but because the cognitive load of rebuilding her automatised routines is exhausting.

Expressive features: gaze

Asperger considers the peculiarities of eye gaze to be never absent. From the third month of life, normal infants use their gaze as a primary channel of social relationship, drinking in the world with their eyes, grasping things, expressing feelings far less inhibitedly than adults, who have learned to distance and conceal themselves. The autistic child is fundamentally different: the gaze hardly ever rests alertly on a particular object or person as a sign of lively attention and contact. One can never quite tell whether the gaze goes into the far distance or inward, just as one never quite knows what the child is preoccupied with or what is going on inside. The disturbance is especially clear during conversation: gaze does not meet gaze to establish the unity of conversational contact. When we talk with someone, we answer not only with words but perhaps even more with our look, with the tone of our speech, with the expression of our face and gestures. A large portion of these relationships plays out through eye gaze, but the autistic, contact-disturbed child is simply not interested in this. The child therefore usually does not look at the speaker at all; the gaze passes by the other person or, at most, touches them incidentally in passing. It is characteristic that these children do not look with a firmly grasping gaze — rather, they seem to perceive more through the peripheral visual field — and yet, as is revealed on many occasions, they perceive and process a surprisingly large amount of the world around them. There is one situation, however, in which the gaze of these children becomes a carrier of strong expression: when they are about to commit a malicious act — then the eye flashes, and already they have done something.

In the adult, gaze remains one of the most socially consequential and most exhaustingly managed traits. An autistic man in his early forties who works as a data analyst has constructed an elaborate set of rules for eye contact: during one-on-one conversations, he looks at the bridge of the other person's nose for a count of three, then looks at a point just past their left ear for a count of two, then back to the nose. If the conversation goes on too long, he loses count and may find himself staring fixedly at the other person's forehead, which he knows reads as aggressive but cannot seem to correct in the moment. In group meetings, he looks down at his notebook and writes continuously — not because there is that much to record, but because it gives him a legitimate reason not to look at anyone. His colleagues have accepted this as his "style" and may even find him thoughtful and focused. At home, with his partner, he rarely makes eye contact during conversation; he looks at the ceiling, out the window, or at his hands while he talks about something that matters deeply to him. His partner learned early in their relationship that this is not a sign of dishonesty or disinterest but of comfort — when he does not have to manage his gaze, he can think more clearly, speak more authentically. The distinction between the masked gaze (managed, rule-governed, draining) and the unmasked gaze (wandering, peripheral, relaxed) is one of the most reliable markers of whether an autistic adult feels safe.

Expressive features: voice, speech melody, and manner of speaking

Asperger devotes sustained attention to the voice and speech patterns of autistic children, considering them of particular diagnostic importance. Fritz V.'s voice is fine and high, sounding as though from far away. The normal word melody, the natural flow of speech, is missing. Most of the time he speaks very slowly, drawing out individual words especially long; the modulation is heightened, his speech is a singsong. The content of his speech is entirely different from what one would expect of a normal child: only rarely is what he says an answer to a question. Often one must repeat questions many times before they reach him. If he does give an answer, it is in the briefest possible form. Very often one simply does not have the luck to get him to react at all: he does not answer, or responds with rejection, rhythmic hitting, or other stereotypies; or he repeats the question, or stereotypically repeats a word from the question that apparently impressed him; or he sings "I don't like to say that, I don't like to say that." Harro L. has a voice that is entirely different yet equally characteristic: it is very deep, coming as though from the depths, as though from the belly. He speaks slowly, without lively speech modulation. While speaking he never looks at his conversation partner; his gaze is fixed somewhere in the distance; with a tense, even cramped facial expression he seeks the formulation of his thoughts — and succeeds remarkably well, producing an unusually mature, finished, adult manner of expression, not as a gesture, not as ready-made, unlived phrases adopted from others, but coming from his own unchildlike, mature experience. One has the feeling that he coins the right word in the moment. Ernst K. has a high, somewhat nasal and drawn-out voice, roughly like the caricature of a degenerate aristocrat — Asperger invokes the immortal Graf Bobby, the butt of Viennese jokes. The impression of the comical, the caricature-like, is intensified by his manner of speaking: the boy talks incessantly and unasked, accompanies everything he does with elaborate explanations, justifies why he does this and that exactly so and so; he must immediately communicate everything he notices to others, whether the remark fits the situation or not. Hellmuth L. speaks slowly, almost scanning, full of insight and superiority; he often uses unusual words, sometimes from poetic language, sometimes in unusual compositions.

In general, Asperger summarizes, the language of autistic children always strikes even the naive listener as unnatural, like a caricature, provoking ridicule. And one more thing: it is not directed at an addressee but is spoken as though into empty space, just as the gaze usually does not meet and hold the partner but passes by them.

In the adult, these speech peculiarities persist but are often masked through conscious modulation. A thirty-three-year-old autistic woman who works as a university lecturer has learned to inject melodic variation into her speech — she rehearsed this for years, listening to recordings of herself and practicing in front of a mirror. Her students experience her as articulate and precise, with a slightly formal, almost old-fashioned diction that they find charmingly professorial. What they do not hear is what happens when she arrives home: her partner notices that her voice flattens out, becomes more monotonous, and that she sometimes speaks in a soft singsong when she is particularly tired, especially when describing something she finds beautiful or absorbing. The singsong, which Asperger noted in Fritz V., reappears in the adult when the mask is off — it is not a regression but a return to the natural, unmanaged prosody of the autistic voice.

The tendency to speak without directing words at a specific addressee, to talk into empty space, persists but is channelled. An autistic man in his late forties may deliver brilliant monologues at dinner parties about his special interest — the history of pipe organs, say — without ever making eye contact and without noticing that his listeners have grown restless. He has learned, over painful decades, to check in periodically: "Am I boring you?" he will ask, with genuine concern and no defensiveness. At home, he does not ask; he simply talks, and his partner has learned to say "I need a break from pipe organs now" without either of them taking offense.

The extraordinary verbal originality that Asperger describes — the neologisms, the striking formulations, the "mündlich kann ich das nicht, aber köpflich" (orally I cannot do it, but headily I can) — persists in adults who have found the right professional niche. A thirty-six-year-old autistic poet produces work that critics describe as startlingly original, with a diction that feels simultaneously ancient and brand new. In casual conversation, she still produces odd, arresting phrases that make her friends pause. She has learned to laugh when people say "you have such a unique way of putting things," but she still does not fully understand why her formulations strike others as unusual — they feel to her simply accurate.

Expressive features: facial expression, gesture, and stereotypic movements

Autistic children, Asperger writes, are poor in facial expression and gesture. They cannot be a mirror to the person with whom they are in contact, because they lack that contact; they therefore do not need facial expression as a contact-creating device. Sometimes they have a tense, brooding expression. During conversation, however, the face is mostly slack and empty — the counterpart to the lost gaze. They are also poor in gestures, that is, expressive movements that do not occur on the face, although they are often rich in movements — but these are movement stereotypies that have no expressive value. Fritz V. would suddenly begin to rhythmically slap his thighs, loudly clap on the table, hit the wall, hit another person, or hop around the room, entirely without regard for the astonishment of others. These impulses usually came quite spontaneously but were sometimes triggered by specific situations: when demands were placed on him, which he experienced as an unwelcome intrusion into his encapsulated personality, or when the mood around him was loud, happy, and restless — in a competitive game one could be sure that he would soon break from the group and begin hopping or hitting. Other stereotypic behaviors included chewing on building blocks, throwing them under the beds for the pleasure of the noise, eating the most impossible things — pencils, wood and lead, paper in considerable quantities — licking the table, smearing his spit around.

In the adult, the poverty of spontaneous facial expression often reads as calm, seriousness, or reserve. A forty-five-year-old autistic judge is described by colleagues as "impossible to read" and "unnervingly composed." This works to her professional advantage: attorneys cannot tell what she is thinking. What no one knows is that she is not suppressing her expressions — she simply does not produce them automatically. When she wants to convey warmth to a junior colleague, she must consciously arrange her face: slight smile, eyebrows raised a fraction, head tilted a few degrees. She practiced these configurations from photographs as a young woman and deploys them deliberately. At home, in the evening, her face goes slack. Her spouse no longer asks "what's wrong?" because he has learned that the blank expression means she is relaxed, not unhappy.

The movement stereotypies described in childhood typically undergo transformation rather than elimination. The adult who hopped and hit as a child now taps his foot rhythmically under his desk, clicks a pen, or paces in tight circles while thinking through a difficult problem. He may not even notice he is doing it, though his colleagues certainly do. In moments of extreme stress, the childhood forms may reappear: a thirty-nine-year-old autistic woman, during a period of burnout, found herself rocking rhythmically in her chair while trying to compose an email and realized with a shock that she had not done this since she was nine. This return of childhood stereotypies is often one of the first signs that an autistic adult has exceeded their capacity and needs to reduce demands.

The peculiar oral behaviors — chewing on non-food items, licking surfaces, smearing — typically become more discreet. An autistic adult may chew on pen caps, the inside of his cheek, or his fingernails; he may have a collection of silicone chew toys at his desk that he uses when working alone but hides when a colleague approaches. The sensory-seeking aspect of these behaviors, the pleasure in particular textures and sensations, remains but is channelled into socially acceptable forms: gum, crunchy snacks, textured jewelry designed for oral stimulation.

Social and relational traits: isolation and the absence of spontaneous social integration

Asperger's central thesis is that the fundamental disturbance of autistic children is a narrowing of their relationships to the environment — a "Kontaktstörung," a contact disturbance. Fritz V. was never able to integrate himself into any children's community. He always played alone, never got along with or occupied himself with other children; "they only provoke him," he would immediately become aggressive, hitting with whatever he could reach, without regard for whether he seriously endangered others — once with a hammer. He was expelled from kindergarten after a few days and his first attempt at schooling failed on the first day because of his completely uninhibited behavior. Harro L. remained a foreign body throughout his entire stay on the ward. One never saw him participating in a group game; he mostly sat — unusually for his age, since the reading mania usually only seizes ten-year-olds — in a corner, buried in a book, utterly indifferent to noise or movement around him. Ernst K., until the last day of his stay, remained a stranger, wandering among the children without properly participating in their games. The autistic child sits absorbed in play or preoccupation, far off in a corner, or even in the middle of the happily noisy siblings or companions, but entirely as a foreign body, entirely untouched by noise and movement, entirely inaccessible in what he is doing; he takes in no stimulation from outside and is easily irritated if disturbed.

This isolation, Asperger emphasizes, is not a withdrawal from previously existing relationships — it is present from the start. "It is as if he were alone in the world," one often hears; he walks about like a stranger, apparently taking no notice of what happens around him — though one is sometimes astonished at how much he has nevertheless absorbed and processed of what goes on despite his apparent detachment.

In the adult, this fundamental isolation persists but is overlaid with strategies. An autistic man in his early fifties who runs a small IT consultancy has built his entire social life around structured activities. He attends a weekly board game group where the rules are explicit, the turn-taking is formalized, and no one expects spontaneous social chat. He goes to a book club where the discussion follows the chapters in order. He does not have friends in the sense of people he calls spontaneously to chat; he has people he sees regularly for specific purposes, and he is warmly regarded by them, though they may notice that he never initiates contact outside the scheduled activity. At work, he is respected for his expertise but is never invited to after-work drinks — not because he is disliked, but because over the years people learned that he always declined, and they stopped asking. He is not lonely in the way a neurotypical person might be in his position; his solitude is largely chosen and deeply comfortable. What distresses him is not being alone but being expected to perform sociability on demand: the office Christmas party, the team-building retreat, the "quick coffee" that has no agenda. These he experiences as draining performances, and he prepares for them like exams, with scripts and exit strategies.

Social and relational traits: the paradoxical nature of attachment and homesickness

Asperger describes a striking paradox. On the one hand, autistic children appear to lack genuine emotional relationships — Fritz V. has "no proper feeling-relationships with anyone," his occasional shows of affection seem abrupt, unmotivated, "like a fit," and one has the impression that he could not really like anyone or do anything for anyone else's sake. On the other hand, Asperger and his team were repeatedly surprised by the severe homesickness reactions that autistic children displayed upon admission to the ward. While ordinary children, even those with a genuine, strong emotional bond to their parents, adapt after a short period of grief — because they soon feel the love and care offered to them, because they become interested in the new environment and the absorbing activities that fill their days — the autistic children suffer far more severely and for far longer. For days they cry in helpless despair, especially in the evenings when the pain always breaks out anew. They speak of the parents who have tormented them so much at home, and of their home, with the tenderest words — with the mature language we have already encountered, but also with an astonishingly differentiated emotion that children of this age cannot usually express. They produce reason after reason why they cannot stay, why they absolutely must go home today — justifications that show a strange mixture of naivety and sophistication. They write imploring, shattering letters home. This all lasts many times longer than the homesickness of normal children, until they finally settle in and begin to feel well under the inescapable order and the superior guidance that takes account of their difficulties.

Asperger speculates that what looks like deep emotional attachment may in part be a near-obsessional bond to the things and habits of the home environment — a limitation of normal freedom of action rather than a purely emotional phenomenon. Yet he concludes that this severe homesickness nonetheless shows of what feelings these children are capable. He further notes that the same boy who tormented his parents with spiteful acts and cruelly mistreated his little brother kept two white mice whom he cared for in a touching manner, preferring them, as he often emphasized, to all human beings.

In the adult, this paradoxical pattern of attachment often persists in forms that can confuse and hurt neurotypical partners, family members, and friends. A forty-one-year-old autistic professor is deeply attached to her spouse — she experiences this attachment as intense and unshakable — but she rarely expresses it in ways that her spouse finds legible. She does not spontaneously say "I love you," does not initiate hugs, and can go an entire weekend absorbed in her research without seeking out her partner's company. Yet when her spouse is away for a week at a conference, she experiences something strikingly similar to the childhood homesickness Asperger described: a disorienting, physically uncomfortable longing, difficulty sleeping, an inability to concentrate on her work, and a repetitive mental rehearsal of memories and anticipated reunions. She does not, however, call her spouse to express this — the feeling is inward, private, and she assumes, wrongly, that it is obvious.

The preference for animals that Asperger noted — the boy who preferred his white mice to all human beings — often persists in adults who find relationships with animals less cognitively demanding than relationships with people. A thirty-seven-year-old autistic veterinarian has four dogs and understands them with an intuitive precision that astonishes her clients. With people, she is pleasant but distant; with her dogs, she is emotionally fluent in a way she cannot be with humans. Her partner has accepted that the dogs will always receive the spontaneous warmth that he must ask for explicitly.

Social and relational traits: the absence of respect, personal distance, and social hierarchy

Asperger observes that autistic children simply do not understand respect or authority. Fritz V. either ignored the authority of adults entirely or was completely without distance, addressing strangers without shyness. Although he had mastered language especially early, the formal "Sie" form of address could not be taught to him; he was on "Du and Du" terms with everyone. Harro L. responded to disciplinary demands with shameless defiance, talking back — "that wouldn't occur to me in my dreams" — or, if he conceded the teacher enough authority not to dare that, at least grumbling quietly to himself. In general, Asperger writes, these children are in an extreme way egocentric, following only their own wishes, their own interests, their own spontaneous impulses, without regard for commands or prohibitions from outside. They lack the feeling for respect toward the other person. When one speaks with them, they stand on entirely equal footing, speak with self-evident assurance; in their disobedience too they are unsurpassably disrespectful — but it soon becomes clear that this is not conscious or intended cheek, but simply a defect in understanding the other person.

They also have no feeling at all for personal distance: just as they unconcernedly lean on anyone, even complete strangers, touching them as though they were not a person at all but some thing, a piece of furniture, so they also lay claim to anyone without any feeling of strangeness, demand their services, begin a conversation on a topic they themselves set — all this undoubtedly without any feeling for differences of age, for hierarchy and subordination, for duties of decorum and politeness.

In the adult, the absence of an intuitive sense of social hierarchy can be either professionally disastrous or, in the right context, remarkably effective. A thirty-five-year-old autistic software developer who works at a large technology company treats the chief executive officer exactly the same way he treats the intern — with the same directness, the same willingness to point out errors, the same assumption that the content of the argument matters and not the rank of the person making it. He was nearly fired in his first year for "insubordination" after telling a senior vice president in a large meeting that the proposed architecture was "illogical and would fail within six months." He was correct, as it turned out, and after that his bluntness was reframed as "intellectual honesty" and became something the company valued. But the same trait makes every interaction with authority figures a potential minefield, and he has learned through painful experience to preface criticism with scripted phrases: "With respect, I wonder whether we might consider..." — phrases that feel dishonest to him but that he understands as necessary lubrication for social machinery.

The absence of personal distance that Asperger describes becomes, in adulthood, a careful negotiation. An autistic woman in her late twenties has learned the rules: stand approximately an arm's length from a colleague, closer for a friend, further for a stranger. But she has no internal sense of these distances and must calculate them consciously, which means that in crowded situations — a party, a conference reception, a busy subway — her cognitive load spikes. When she is tired, she may stand too close to someone without realizing it, or sit on a bench so near to a stranger that the person moves away. She has been told she is "intense" and "a lot," and she has internalized these descriptions without fully understanding what generates them. At home, with people she trusts, she does not manage distance; she may sit pressed against her partner on the sofa, not out of affection — though affection is present — but because the physical pressure is regulating, and because she does not have to think about where her body ends and another's begins.

Social and relational traits: malicious acts, spite, and the appearance of calculation

One of the most striking and controversial features Asperger describes is the tendency toward what he calls "Bosheiten" — malicious or spiteful acts. Fritz V., who a moment before was sitting slack with an absent look, would suddenly spring up with flashing eyes and in a flash have done something: swept things off the table, quickly hit another child — he always picked smaller, helpless ones, who were very afraid of him — turned on lights or water, or suddenly ran away from his mother or attendant and was barely catchable, or let himself fall into puddles so that he was smeared from head to foot. These impulsive acts came without any preparation, gave no warning, and were therefore pedagogically extremely difficult to control. What was especially characteristic was that what usually happened was precisely what in a given situation was the most unpleasant, most embarrassing, most dangerous thing — so that the boy must have had a special sense for this, even though he otherwise seemed to take so little notice of his environment. It is through this unerring accuracy that the malicious acts of these children appear so "raffiniert" — so crafty, so cunning.

Asperger notes that these acts occur primarily within the family, the smallest and most emotionally bonded community. Characterized by their particular refinement, the children find with unerring certainty what will be most unpleasant and hurtful in a given situation; they proceed with precise deliberation. Because these children are poor in feeling, they lack the sense of how much they hurt others — physically to younger siblings, emotionally to adults. Sometimes distinctly sadistic acts occur. The pleasure in malice — almost the only occasion that causes the usually so lost gaze of these children to light up — is rarely absent.

At the same time, Asperger emphasizes that these children are both negativistic and especially suggestible; one even often finds traits of command automatism. If one presents demands in an automaton-like, stereotyped way, in the same calm singsong that they themselves use, one often has the feeling that they must obey, without the possibility of resisting the command. Another pedagogical trick is to announce educational measures not as personal demands but as objective, impersonal law: "one does it this way," "now everyone must," "a clever boy must."

In the adult, the childhood tendency toward what looked like calculated malice transforms, in most cases, into something more complex and less obviously antisocial. An autistic man in his forties has learned that being bluntly truthful can hurt people, and he does not wish to hurt people. But he still does not intuitively sense what will hurt and what will not. He relies on rules: never comment on someone's weight, never mention a death or illness unless the person brings it up first, always say "that's interesting" when someone shows you a picture of their child or pet. These rules work most of the time, but they fail when situations are ambiguous. When his partner asks "do you like this dress?," he answers honestly — "the cut is unflattering across the shoulders" — and is genuinely bewildered when this causes tears. He is not being cruel; he is applying the rule "answer questions truthfully" while lacking the supplementary rule "unless the question is about appearance and the asker is seeking reassurance." His partner has learned to preface such questions with "I need reassurance, not analysis," and with that explicit framing, he can provide exactly what she needs.

The childhood pattern of doing precisely the worst thing in any given situation sometimes persists in subtler forms. An autistic woman in her early thirties, exhausted after a day of masking at work, finds herself reflexively contradicting her partner's suggestions, not because she disagrees but because the effort of agreeing — of modulating her tone, of arranging her face — feels beyond her. Her partner experiences this as deliberate provocation. She experiences it as an inability to perform the social script. What looked in childhood like calculated malice may, in adulthood, be recognizable as the collapse of masking under fatigue — the reemergence of a pre-social, impulse-driven mode of being that is not malevolent but simply unmanaged.

Social and relational traits: teasing, victimization, and the provocation of ridicule

Asperger describes with painful clarity how autistic children become targets. Their entire being — their conduct, their manner of speech, not least their often grotesque clumsiness — simply cries out to be mocked. Children have a particularly good eye and a sure aim in their mockery of conspicuous character traits. One can observe again and again that characteristic situation: such a child during the break and especially on the way to school forms the center of a jeering horde of boys, himself striking out in blind fury — and thereby appearing especially comical — or crying helplessly, in any case defenseless against his nimble tormentors. Harro L. is especially sensitive to mockery — and yet in many ways he appears quite comical, positively invites it. Ernst K. is the red rag to his class; everyone goes after him, mocks him, hits him; he is helplessly at their mercy. Hellmuth L. was mocked since always by the other children in the crudest way; children would run after him in the street and jeer at him — not least because he became so beautifully angry, immediately flew into a heavy rage, but could of course do nothing to the fleet-footed rascals, becoming only more ridiculous in his helpless fury.

In the adult, the experience of being mocked, excluded, or targeted does not necessarily end — it changes form. The autistic adult who was bullied in the schoolyard may be bullied in the workplace, though the methods are more subtle: exclusion from informal networks, being the butt of jokes that everyone assumes he does not understand (he often does understand, which makes it worse), being passed over for promotion because of "poor communication skills" or "not being a team player." A forty-three-year-old autistic accountant has learned to keep his head down, to eat lunch alone, to speak only when spoken to. He is not unhappy — his work satisfies him, and his solitude is not loneliness — but he carries the accumulated scar tissue of decades of social rejection. When a colleague unexpectedly invites him for a drink, his first reaction is not pleasure but suspicion: he scans for the hidden mockery, the setup for humiliation, because this has been the pattern since primary school.

Some autistic adults, like the children Asperger describes, learn to earn a certain respect — albeit always mixed with mockery — through sheer intellectual prowess or particularly ruthless aggression. A thirty-nine-year-old autistic surgeon is feared and respected in equal measure. His colleagues find him "impossible" — cold, blunt, utterly lacking in bedside manner — but they also know that his surgical outcomes are among the best in the hospital. He has made himself, as Asperger might have predicted, indispensable enough to be tolerated despite his social peculiarities. His childhood tormentors have been replaced by colleagues who talk behind his back; the difference is that now he has power, and power provides a kind of protection that the helpless child never had.

Cognitive and learning traits: autistic intelligence and the tension between originality and mechanical learning

Asperger articulates a dialectical theory of autistic intelligence. A child's achievements grow out of a tension between two poles: spontaneous, independent production on the one hand, and imitation of what is demonstrated, learning of knowledge and skills that adults already possess, on the other. Both must come together in the right measure if the achievement is to be valuable. If independent production or at least independent processing of what has been adopted is missing, the achievement becomes an empty form, merely superficially mechanized. The opposite disturbance is found in autistic intelligence: these children can above all produce spontaneously, can only be original, but can learn only in a reduced measure, can only be mechanized with difficulty; they are simply not disposed to adopt knowledge from adults, for instance from the teacher. The special abilities and the special difficulties of these people are grounded in this — as indeed in every person, virtues and faults are inseparably linked.

This is most clearly visible in their language productions: they have, especially the intellectually gifted among them, a particularly creative relationship to language, are capable of expressing their original experience and observations in a linguistically original form — whether through unusual words that one would suppose lie entirely outside the life-circle of these children, or through newly formed or at least reshaped expressions that are often especially apt and characteristic, though often also quite aberrant. Asperger notes that toddlers very often have a free relationship to language and uninhibitedly form new words that are usually very apt — this is precisely what makes the charm of "child language" — but beyond the toddler age such freely formed expressions are found, in his experience, only in autistic children. He gives the example of a six-to-seven-year-old boy who, asked the difference between stairs and ladder, answered: "die Leiter geht so spitz und die Stiege so schlangenringelich" — the ladder goes so pointedly and the stairs go so snakedly.

Behind the originality of linguistic formulation stands the originality of experience. Autistic children have the ability to see things and processes in the environment from new points of view. These points of view are often of an entirely astonishing maturity; the problems they pose themselves reach far beyond what other children of the same age think about. Usually it is a narrowly circumscribed, isolated special area that is developed in a hypertrophic way.

One child is a "natural scientist" with genuinely scientific questions; he makes observations with an unusual eye for the essential, orders them into a worldview, makes his own theories — which are sometimes somewhat abstruse; the least of it has he heard or read, always he refers to his own experiences. Another is a chemist, who spends all his money — and if he must steal it — on experiments that often terrify his surroundings; some specialize even further, on experiments where things bang and stink. Another autistic boy fixated on poisons, possessing an unusual knowledge of them, a collection of partly quite naively self-prepared poisons; he came to the clinic because he had stolen a considerable quantity of cyanide from the poison cabinet of his school. For another, the realm of numbers stands at the center; without instruction, without school lessons, difficult arithmetical operations are self-evidently fluent to him. Another child has above all technical interests, knows an incredible amount about the construction of complicated machines — through thorough questioning, which one could not evade, and above all through his own observations he has acquired this knowledge — and occupies himself with fantastic inventions, like spaceships and the like; here one notices clearly how far from reality autistic interests often are.

These special interests coexist with severe learning difficulties. The very same children who occasionally astound their teacher with answers showing a maturity far beyond their age fail most drastically in the learning subjects, and especially in the mechanizable learning requirements that otherwise come easily even to the least clever — particularly reading, spelling, and arithmetic, including the multiplication tables. The compulsion to go one's own way under all circumstances, to use self-invented methods, prevents the child from adopting the calculation methods presented by the school; they make things difficult and complicated for themselves, eventually make errors, and arrive at wrong results. Asperger gives the example of an autistic school beginner who could pose and solve the problem of how many seconds there are in two hours, but when asked to calculate five plus six, said: "Yes, the smaller calculations I really don't like, I much prefer a thousand times a thousand." When pressed, he laid out the following original but rather cumbersome method: "Look, this is how I calculate it: six and six is twelve, and five and six is one less, so eleven."

In the adult, this fundamental structure — extraordinary ability in a narrow domain coexisting with surprising difficulties in areas that others find trivial — often persists in ways that can appear almost paradoxical. A fifty-four-year-old autistic mathematician who has published groundbreaking work in algebraic topology struggles to fill out his health insurance reimbursement forms. He puts them in a drawer and ignores them for months, not because he is disorganized — his office is meticulously ordered — but because the form's logic seems arbitrary and unlearnable. The categories do not map onto any conceptual structure he recognizes. When the form changes from one year to the next, he experiences a disproportionate distress and must ask his department administrator to sit with him and go through it line by line — an embarrassing dependency for someone of his intellectual stature.

The special interests of childhood become, in favorable adult outcomes, the basis of a career. The "chemist" who stole cyanide becomes a research pharmacologist. The number-obsessed child becomes an actuary or a cryptographer. The boy who collected tram line information becomes a transport planner or a database architect for a logistics company. But in less favorable outcomes, the remain what they were: isolated domains of intense absorption that do not translate into employment. A forty-seven-year-old autistic man who lives alone and works a routine data-entry job spends every evening and weekend immersed in the history of medieval siege engines. He has built detailed scale models, compiled a private database of over two thousand documented siege engine designs, and corresponds with two other enthusiasts he has found online. His knowledge would be publishable, but he has no interest in publishing — the knowledge is for him, not for others. This is the adult expression of what Asperger called the narrowing of the self, the restriction of relationships to the environment: the special interest is a world in which the autistic person is sovereign and does not need to negotiate the demands of social reciprocity.

Cognitive and learning traits: peripheral attention and the disturbance of active attention

Asperger describes a distinctive pattern: autistic children seem to perceive much of the world only through the peripheral visual field, only "from the edge of attention" — and yet they process and retain what they perceive in this way, building it into mental possession. At the same time, both active and passive attention are considerably disturbed. Their knowledge is only very difficult to reproduce — and yet they have, as one often discovers only by chance, an unusually rich inner life, good logical thinking, and an especially good capacity for abstraction. The disturbance of active attention is found almost regularly in children of this type. It is not, or not only, the ordinary concentration disturbance seen in many neuropathic children, who are distracted from their work goal by every external stimulus, every movement and restlessness around them. These children are rather from the start simply not inclined to direct their attention, their work concentration, toward what the outside world — in this case the school — demands of them. They go their own way, following their own problems, which usually lie so far from the ordinary; they do not let their circles be disturbed, and usually do not let others see into them at all.

Asperger notes that a good capacity for abstraction may be connected to this very distance from the concrete world. The normal child, especially the younger one, who stands properly in the environmental situation, reacts correctly and swings along with it, does so out of healthy instincts but usually does not arrive at conscious judgment; for that, distance from concrete things is required. Distance from the individual thing is the prerequisite for abstraction, for becoming conscious, for concept formation. Precisely the heightened personal distance, indeed the disturbance of instinctive, emotional reacting that characterizes autistic individuals, is therefore in a certain sense a prerequisite for their good conceptual grasp of the world. Asperger calls this "psychopathische Klarsichtigkeit" — psychopathic clarity of vision — a trait he claims is found only in these children.

In the adult, this cognitive profile is often both a professional asset and a source of daily frustration. A thirty-one-year-old autistic data scientist produces analyses that are remarkable for their ability to see patterns that no one else has noticed. She describes her thinking as "standing very far back from the data" — she sees the whole structure at once, as though from a great distance, before zooming in on specific anomalies. This is, in adult form, the "psychopathic clarity of vision" that Asperger described. But the same distance that enables her analytical brilliance makes her seem disconnected in meetings. She is often accused of not paying attention, when in fact she is paying a different kind of attention — her mind has moved ahead to implications and patterns while her colleagues are still discussing the surface details.

The disturbance of active attention persists: she cannot make herself focus on something that does not interest her. Administrative emails pile up unread. Required online training modules are completed at the last possible minute, or not at all. She has learned to delegate or trade tasks: "I'll do the complex analysis if you handle the paperwork." At home, she can read a dense academic paper for four hours without a break, utterly absorbed, but cannot make herself do the dishes if her mind is occupied with an interesting problem. The dishes may sit for days until the intellectual problem is resolved — at which point she will clean the entire kitchen in a focused burst lasting until two in the morning.

Cognitive and learning traits: the paradox of intelligence testing

Asperger makes a methodological point that has practical implications: standard intelligence tests, especially the Binet test and its modifications, can produce a false picture of autistic children's abilities. These tests, particularly at the higher age levels, primarily demand logical-abstract thinking — precisely what autistic children often find congenial. A high "intelligence quotient" may result, yet the child's actual failure only becomes visible when learning demands are made. Asperger therefore incorporated learning tests into his assessment method — tests that reveal not only school knowledge but also work methods, attention, concentration, distractibility, and persistence.

He gives a striking example of the contradictory findings that can emerge: Fritz V. spontaneously repeated six digits — a feat expected at age ten on the Binet, though he was only six — but on other tests he gave nonsensical answers or none at all. On the similarities subtest, asked about "wood and glass," he answered "because the glass is much more glassy and the wood is much more woody" — an answer that is at once logically vacuous and yet strangely attentive to the essential quality of each substance. He could not or would not perform the rhythm imitation test at all. Asperger concluded that one could with good reason consider such children either as prodigies or as imbeciles.

In the adult, this contradiction often persists in the form of highly uneven cognitive profiles that baffle clinicians and employers alike. A forty-two-year-old autistic man with a tested IQ in the superior range cannot reliably calculate a tip in a restaurant without using his phone calculator. He has been assessed multiple times over his life, and each assessment produces the same pattern: verbal and abstract reasoning scores in the top few percentiles, processing speed and working memory scores significantly lower. The gap between his reasoning ability and his processing speed means that in real-world situations requiring quick responses — a fast-moving meeting, an unexpected question from a client — he may appear slow or confused, when in fact his mind is processing the problem in a depth that simply takes longer. He has learned to say "let me think about that and get back to you," which reads as professional deliberation rather than cognitive delay.

The adult who was the child giving "weil das Glas viel gläserner ist und das Holz viel hölzerner" may now be a philosopher whose colleagues find her formulations oddly ontological — she seems to be reaching for the essence of things in a way that others find either profound or impenetrable. This is the adult flowering of what Asperger recognized as the autistic child's special creative attitude toward language and concepts.

Affective and drive traits: sexuality and the disharmony of instinct

Asperger describes the sexual development of autistic individuals as disharmonious. The picture is not uniform. Some cases remain, throughout childhood and beyond puberty, sexually cool and uninterested, drive-weak — and never achieve a healthy, strong sexuality in later life. In the larger number of cases, however, early sexual abnormalities appear. In very many cases these take the form of masturbation that appears early, is practiced intensively, is stubbornly maintained, and resists all attempts at treatment. Often the feelings of shame and guilt that usually accompany these acts are largely absent; the children indulge their passion, under certain circumstances in an exhibitionistic manner, with all the stubbornness and uninfluenceability of the autistic psychopath. One also learns of homosexual acts in relatively young children, as in the case of Harro L., where there were said to have been genuine homosexual acts and coitus attempts.

Sadistic traits are also reported. Asperger cites the statements of a seven-year-old, considerably autistic boy: "Mummy, I will one day take a knife and push it into your heart; then the blood will spurt out, that will be a great sensation." "Wouldn't it be nice if I were a wolf, then I could tear apart sheep and people and the blood would flow." When the mother cut her finger: "Why isn't more blood flowing, the blood should flow." Even when he himself was once injured, he was said to have been quite enthusiastic, to the point that the doctor who treated the wound found the state very striking. At the same time, the boy was otherwise especially anxious, feared falling over in his chair, and on the street had great fear of fast-moving vehicles. Asperger also notes a not infrequent tendency toward coprolalia — the use of obscene words — which stands in peculiar contrast to their otherwise so refined language.

In the adult, the disharmonious sexual development that Asperger describes can manifest in several patterns. Some autistic adults are effectively asexual, experiencing little or no sexual attraction and finding the entire domain of sexuality mystifying and irrelevant to their lives. This is not a source of distress for them, though it may be for partners who do not understand. Other autistic adults experience intense sexual drives that are, however, disconnected from the social and relational contexts in which neurotypical sexuality is embedded. A thirty-four-year-old autistic man has a series of brief, intense relationships that all end the same way: his partner complains that he is "emotionally absent" during sex, that he seems to be "somewhere else." He is indeed somewhere else — his sexual drive operates on a separate track from his capacity for emotional intimacy, and integrating the two requires conscious effort that he has not yet learned to make.

The sadistic fantasies of childhood typically do not persist into adult behavior, but they may leave traces. An autistic woman in her late thirties has intrusive thoughts of violence that she has never shared with anyone — not because she would ever act on them, but because the thoughts themselves feel shameful and bewildering. They arise unbidden when she is stressed and typically involve scenarios of destruction and blood that are vivid and detailed. She has learned to manage them as one might manage tinnitus: acknowledge them, let them pass, do not engage. She has never harmed anyone and is, by all accounts, a gentle person. The childhood fascination with blood and injury has been channelled into a career in emergency medicine, where she is known for her preternatural calm in situations that would panic most people.

Affective and drive traits: sensory hypersensitivities and paradoxical insensitivities

Asperger documents pronounced and specific likes and dislikes in the domain of taste, noting that their frequent, similar occurrence provides further proof of the unity of the type. There is often a particular preference for strongly sour or spiced foods, such as gherkins or roasted meat; often there is an unconquerable aversion to vegetables and dairy foods. Something corresponding is found in the domain of touch: many of these children have an aversion to particular tactile sensations that reaches abnormal degrees — for velvet, silk, cotton wool, chalk. They cannot tolerate the roughness of new shirts or darned socks. The cutting of nails, or rather the certainly not pleasant feeling one has after cut nails, is the occasion for severe scenes on these occasions. Water during washing is also often a source of unpleasant sensations and therefore grounds for conflict. In the hospital, a particular hypersensitivity of the throat reveals itself, so that the daily spatula examination becomes a difficult procedure. Against noise or loud sounds these children are often distinctly hypersensitive — sometimes the very same children who in other situations are so completely switched off and insensitive to what goes on around them, including to noise.

In the adult, sensory hypersensitivities remain a structuring force in daily life, though they are often hidden from others. An autistic man in his late forties has worn the same brand and model of undershirt for twenty-five years, ordering them in bulk because he cannot tolerate the sensation of new, slightly different fabric against his skin. He cuts the tags out of all his clothing. When his partner buys him a new shirt as a gift, he must perform a gratitude ritual — smile, say thank you, try it on — while inwardly feeling a wave of aversion that he knows is disproportionate but cannot control. The shirt goes into the back of the closet and is never worn.

The hypersensitivity to noise that Asperger describes often becomes more manageable with age and with control over one's environment. An autistic woman in her early forties wears noise-cancelling headphones in her open-plan office, and her colleagues have learned to wave to get her attention before speaking. At home, she has installed dimmer switches on every light because overhead lighting feels like an assault. She has explained her sensory needs to her partner so many times that they now have a shorthand: she says "I'm at a seven" and he knows to turn down the music, dim the lights, and not touch her for a while. The paradoxical combination of hypersensitivity and insensitivity persists: the same woman who cannot tolerate the hum of a refrigerator may not notice that she has cut her finger while cooking until she sees blood on the countertop.

Affective and drive traits: pedantry, ritual, and the insistence on sameness

Pedantry and obsessive-compulsive traits are, in Asperger's account, widespread among autistic children. Ernst K. makes his own life difficult with his elaborate hesitations and endless scruples. If something is in any way different from what he imagined or from what he is used to, he cannot cope; there are long debates. He also torments himself with his compulsive pedantries, cannot get over the fact that something should be different from what he expected. Asperger gives the unforgettable example: Ernst had wished for a pullover for Christmas. Since this wish could not be fulfilled, he received an especially beautiful shirt and also some toys. He could not console himself over this "incorrectness," did not look at the other gifts at all, and was unhappy throughout the entire Christmas period. Certain things always had to be in exactly the same place, always had to happen in exactly the same way, or he would make a big scene.

Hellmuth L. was reported to have been especially pedantic from earliest childhood, making great scenes when something once lay or stood differently from what he was accustomed to. In everything he did, he had his particular ceremonies. He was especially particular about his clothing, tolerated not a speck of dirt on it, washed his hands very often, observed his body and its functions precisely. With his pedantries he tyrannized his surroundings severely.

Asperger also notes that these pedantic tendencies can be exploited pedagogically. Many autistic children have numerous pedantries, many show traits verging on the obsessional-compulsive — and these traits can be used for social integration. An exact timetable, in which every occupation and duty of the day is precisely enumerated, can become an "objective law" to which the child feels firmly bound.

In the adult, pedantry and the need for sameness often persist but may be reframed — by the individual or by others — as thoroughness, attention to detail, or professional conscientiousness. A fifty-year-old autistic editor is known in her publishing house for catching errors that everyone else has missed. Her authors sometimes find her exhausting — she will query a comma that she insists changes the meaning of a sentence — but they also know that their books are better for her scrutiny. This is the socially valorized expression of the same trait that, in childhood, meant inconsolable grief over a Christmas present that was not a pullover.

At home, the rituals are less valorized and more simply necessary. An autistic man in his late thirties becomes distressed if his partner has moved the coffee mugs to a different shelf. He does not make a scene, as he did in childhood, but his distress is visible: he goes quiet, his movements become jerky, and he may need to go to his study and sit alone for twenty minutes to calm himself. His partner has learned that changes to the domestic order must be announced in advance and negotiated. "I'd like to rearrange the kitchen cupboards" is the beginning of a conversation that will take several days and will end either with the rearrangement not happening, or with a carefully documented agreement about exactly where everything will go. This is not obstinacy; it is the adult expression of a neurological need for predictability that Asperger recognized and described with clinical precision.

Affective and drive traits: collecting, attachment to objects, and the "fetish"

Asperger describes the relationship of autistic children to objects as abnormal. While the normal child, especially the young one, makes things come alive by filling them with his own life through his good relationships to them, while he develops himself through things, gathers his experiences, attaches his love to them — nothing of this is found in autistic children. Either they take no notice at all of the objects in their environment, showing no interest in toys, or they have an aberrantly firm attachment to particular individual things, not letting a whip, a wooden block, a merely rudimentary doll out of their sight for a moment, unable to eat or sleep if the "fetish" is not with them, making the most severe scenes at any attempt to wrest away the thing held with such passionate attachment.

Often the relationship of these children to things is narrowed to collecting. Asperger finds here the same pattern as in so many other domains: instead of a harmoniously ordered fullness in which nothing especially stands out, one finds defects and empty spaces in which individual things are hypertrophied. The collecting, especially in the way autistic children pursue it, means a de-souling of possession. They heap up certain things, but not in order to do something proper with them, to play with them, to change and shape them, but only to know themselves in possession of them. A six-year-old boy has the ambition to reach one thousand matchboxes, a goal he pursues with fanatical energy — but his mother never sees him play trains with them as other children do. Another collects string, a third "everything" he finds on the street or takes from somewhere — but not in the manner of the reality-adapted street urchin, in whose unfathomable trouser pockets everything, but absolutely everything, can be found that he needs for his pranks. The autistic boy stacks boxes full of useless junk at home, orders the things again and again, guards them like a miser; there are severe conflicts when the mother dares to throw anything away.

In the adult, collecting often becomes more "rational" and interesting, as Asperger himself notes — but the underlying drive remains. A forty-six-year-old autistic architect owns over three thousand mechanical pencils, meticulously catalogued by manufacturer, year, and mechanism type. He does not use most of them; their purpose is to be owned, to be ordered, to be known. His partner has negotiated a boundary: the collection must fit in one room of the house. Within that room, he is sovereign; outside it, the pencils may not encroach on shared space.

The attachment to a particular object — the childhood "fetish" — may persist in forms that an adult is ashamed to disclose. A thirty-three-year-old autistic woman still sleeps with the same small, worn piece of blanket she has had since infancy. It is not visible to anyone who visits her home; it lives under her pillow and emerges only at night. She has never told a therapist about it, fearing it would be pathologized. In fact, it is simply a self-regulatory tool, a source of tactile comfort more reliable than any human being has ever been. This is the adult continuation of the childhood attachment that Asperger observed — an attachment that looks, from the outside, like a failure to develop, but that from the inside is experienced as a source of deep and reliable comfort.

Affective and drive traits: humor and its absence

Asperger observes that a characteristic feature of autistic children is their humorlessness. They "understand no joke," especially not when it is directed at themselves — which is one more reason they are so teased, for whoever can laugh along with others robs mockery of its sting. They cannot be properly relaxed and cheerful, do not achieve that understanding of the world coming from the heart, from the "Gemüt," that lies in genuine humor. When they are once in a merry mood, it usually has an unpleasant effect: exaggerated, distorted, without measure; they hop and rampage around the room, become especially lacking in distance, annoying, aggressive. In only one thing are they often capable, even creative — in word play, ranging from word twisting, from effects arising from sound similarities, to sharply formulated, genuinely clever witty remarks.

In the adult, humorlessness can be socially costly. An autistic man in his forties has learned to recognize that a joke has been told — he watches for the slight pause, the shift in intonation, the expectant look around the group — and he has learned to produce a small, timed laugh in response. But he often laughs a beat too late, or in the wrong place, and his laugh has a slightly mechanical quality that perceptive people notice. When the joke is on him, he cannot mask his reaction: he stiffens, goes silent, and the hurt is visible on his face. His colleagues have learned not to tease him, not out of kindness — though some are kind — but because his reaction makes everyone uncomfortable.

Yet Asperger was right about the word play. An autistic woman in her early thirties is famous among her friends for her puns, which she produces with a deadpan expression and which are so intricate and unexpected that they often take a moment to land. She is funnier than she knows — not in the warm, affiliative, self-deprecating mode of neurotypical humor, but in a more cerebral, linguistic register. This is the adult flowering of the childhood knack for word twisting that Asperger noted: the capacity to play with language in ways that surprise and delight, even as the broader social function of humor — bonding, tension release, emotional regulation — remains elusive.

Affective and drive traits: self-observation, introspection, and the accurate judgment of others

Asperger describes a capacity that seems to contradict the contact disturbance: autistic children often have an astonishingly accurate and mature judgment about the people in their environment, sensing very well who means them well and who does not, even when the person behaves quite otherwise. They have a particularly fine feeling for the abnormality of other children — indeed, as abnormal as they themselves may be, they are almost hypersensitive to this.

They also direct their attention inward, toward the functions of their own bodies, in a way that normal children do not. A nine-year-old autistic boy, who like most of these children had a severe homesickness reaction in the first days on the ward, described how he calmed himself in the evening in bed — at this time the homesickness is at its worst: "when one lays one's head on the bolster, there is such a rushing in the ear and one must lie quietly for a long time and that is nice." The same boy also described an occasional micropsy: "In school, I sometimes see that the teacher has such a tiny head, then I don't know what that is; it is so unpleasant to me that I see it this way; then I press my eyes right out (he demonstrates how he presses his eyes), then it gets better."

Asperger connects this self-observation to a broader point: whenever attention is directed toward the wonderful automatisms of vegetative life, which work best when left unconscious, disturbances of these functions appear. In autistic children, the functions of the body press themselves into consciousness of their own accord, without the educator doing anything to cause this; they are registered and taken seriously — and are in many cases disturbed. Eating and sleeping difficulties are especially frequent.

In the adult, the capacity for self-observation often manifests as a heightened interoceptive awareness that can be both a gift and a burden. A thirty-six-year-old autistic nurse is exceptionally good at noticing early signs of illness in patients — a slight change in skin color, a barely perceptible alteration in breathing rhythm — because she is attuned to somatic signals in a way her colleagues are not. She is also, however, exquisitely aware of her own heartbeat, which can become a source of anxiety: when she notices it speeding up, she worries that something is wrong, which makes it speed up further, in a cycle that has occasionally escalated to panic. She has learned to use the same observational precision that makes her good at her job to notice and interrupt this cycle early.

The accurate judgment of others that Asperger describes persists in adults who may be socially naive in many respects but who have an uncanny ability to detect insincerity. A forty-nine-year-old autistic professor can tell within minutes of meeting a new colleague whether that person is genuinely interested in ideas or merely performing interest for professional advantage. He is almost never wrong about this, and his judgments, once formed, are nearly impossible to revise — a rigidity that has cost him potential collaborations. This is, in adult form, the "thymogener Automatismus" that Asperger, following Hamburger, described: the automatic, unconscious influence of the educator's genuine emotional state on the child. The autistic adult may not be able to read subtle social signals, but he reads authenticity and its absence with a precision that neurotypical people, who are accustomed to the noise of social performance, often lack.

Genetic and familial traits: sex ratio, inheritance, and the "extreme variant of male intelligence"

Asperger reports that almost all his cases are boys. He found in girls contact disturbances that in some respects recalled the autistic psychopaths, and he found girls in whom a preceding encephalitis had to be assumed as the cause of the condition, but he found no fully expressed picture in girls such as his cases one through three showed. He proposes that the autistic psychopath is an extreme variant of male intelligence, of male character. Even within the normal range of variation, typical differences between boy and girl intelligence are found: girls are generally the better learners; the concrete, the visual, the practical, the neat, diligent work suits them; by contrast, the logical, the capacity for abstraction, precise thinking and formulating, independent research lie much more within the possibilities of boys. In the autistic psychopath this tendency is intensified to the extreme. Abstraction — which in general lies more within male thinking, while woman feels more, rests securely in her instincts — has progressed so far that the relationships to the concrete, to things and to people, have largely been lost; adaptation to the demands of the environment, which proceeds primarily through instinctual functions, is achieved only in a very reduced measure.

Asperger also reports that, in every single case where it was possible for him to become more closely acquainted with parents and relatives, he was able to find related psychopathic traits in the ascendants. Often only individual autistic peculiarities were present, but often the fully expressed picture of the autistic psychopath, from the characteristic expressive phenomena and clumsiness up to the difficulties of social integration — though these played out on a different level in adulthood. In most cases, the father, if he is the one who transmitted the autistic traits, has an intellectual profession; if one finds a manual worker among them, one usually has the impression that he missed his vocation. In many cases the ancestors of these children have been intellectuals for several generations, driven by their nature fatefully into such professions. Many of the fathers of Asperger's autistic children stood, despite their considerable peculiarities, in high positions.

In the adult, the sex ratio observation has been amply confirmed by subsequent research, though the theoretical framing — the autistic personality as an extreme variant of male intelligence — is now understood as reflecting both genuine biological differences in neurodevelopmental patterns and the historical underdiagnosis of autistic girls and women, who often present differently, mask more effectively, and are missed by diagnostic frameworks built around male presentations. A forty-one-year-old autistic woman who was diagnosed only at thirty-nine has spent her life being told she is "not like other women." She did not recognize herself in Asperger's descriptions of females — the instinctually secure, feeling-oriented, practically capable feminine norm against which he contrasted autistic boys — because she is none of those things, and never was. Her autism was invisible to clinicians because she had learned, by adolescence, to perform a version of femininity that was plausible enough: she copied the clothes, the vocal patterns, the social scripts of her female peers, and the effort of this performance has been the central organizing fact of her emotional life.

The familial pattern that Asperger observed — the intellectual father with autistic traits, the family lines of academics and artists — often becomes legible to adults only after their own diagnosis, when they look back at their parents and grandparents with new understanding. A forty-five-year-old autistic physicist, diagnosed after his son was identified as autistic, suddenly understood his father's lifelong inability to make small talk, his obsessive cataloguing of jazz records, his furious outbursts when the household routine was disrupted. What had been experienced as a difficult personality, as coldness, as "just the way he is," was reframed as an inherited neurotype — not an excuse for harm caused, but an explanation that allowed for a more compassionate understanding and, in some cases, a belated repair of relationships that had been damaged by decades of mutual incomprehension.

Genetic and familial traits: the only-child phenomenon

Asperger notes that autistic children are only children to a degree far exceeding what would be expected even allowing for urban population patterns. He explicitly rejects the "individual-psychological" explanation — that the clinical picture arises from the situation of the only child, who grows up only among adults and never learns to adjust to siblings. If one sees how such children grow up autistic from earliest childhood, and if one knows that autistic children who grow up among siblings develop in exactly the same way as only children, then an explanation from exogenous causation must appear absurd. The fact that these children are autistic does not lie in unfavorable educational influences to which a siblingless child is exposed, but is grounded in the inherited dispositions from the likewise autistic parents. It is an expression of the autistic character of the parents that they were willing to give life to only a single child. The will to children in a marriage is undoubtedly an expression of an attitude and therefore, in people within the normal range of variation, changeable with that attitude and accessible to educational influences. A magnificent example, unique in history, is offered by our most recent German present. But in such extreme variants of human character, it can be shown that the will to have a child — or its opposite — is also deeply anchored in the drive stratum of the person, that is, in their constitutionally determined disposition. The lack or at least the weakening of this will to have a child is a trait that belongs to most autistic personalities and is a further symptom of their hyposexual, instinct-disturbed or instinct-weak nature. Many of these characters spend their lives unsociably, without wife and child; of those who do marry, many live in a problematic and tension-filled marriage community in which the right harmony between drive and spirit is not found, in which above all there is no room for the growing up of a larger brood of children.

In the adult, the observation about only children requires significant qualification — subsequent research has not confirmed that autistic children are predominantly only children — but the deeper point about the instinctual basis of the will to have children may resonate with the experience of some autistic adults. A thirty-eight-year-old autistic woman and her autistic husband made a deliberate decision, ten years ago, not to have children. This was not, as some family members assumed, because they "couldn't handle it." It was because they had both, independently, looked at the demands of parenthood with the same analytical clarity they applied to any other major decision, and concluded that the sensory, social, and executive demands of raising a child would, for them, exceed their combined resources in a way that would not be fair to the child or to each other. This decision was not an expression of deficiency but of self-knowledge — the same self-knowledge, honed over decades of managing their autistic traits, that Asperger saw in nascent form in the child who observed his own micropsy or described the texture of his own sleep.

Yet there are also autistic adults who are parents, and who find in parenting a profound satisfaction that Asperger's framework — with its emphasis on autism as a reduction of the instinctual and the interpersonal — did not anticipate. A forty-three-year-old autistic father of two describes his relationship with his children as the most natural and least effortful social bond in his life. He does not have to mask with them; they accept his flat vocal tone, his need for quiet, his absorption in his special interests, because this is simply "Daddy." He struggles with the noise and chaos and unpredictability that children bring, and he has had to develop strategies — noise-cancelling headphones, scheduled alone time, explicit conversations with his partner about sharing the sensory load — but the emotional bond, which Asperger might have predicted would be absent, is in fact the most solid and uncomplicated attachment he has ever experienced.

This final observation returns us to Asperger's own concluding paradox: the autistic personality is full of surprising contradictions. The child who seemed to love no one could be devastated by homesickness. The boy who tormented his brother could care tenderly for his white mice. The adult who cannot look you in the eye may be the most loyal person you will ever know. The mind that cannot memorize multiplication tables may see patterns in the architecture of the universe that no one else has glimpsed. Asperger's great achievement was to describe these contradictions without resolving them — to insist that the good and the bad in every character are two sides of the same coin, that one cannot simply take the positive and discard the negative. His clinical descriptions, read in the light of seventy years of subsequent experience, offer a portrait not of a disorder to be eliminated but of a mode of being to be understood, accommodated, and, in favorable cases, valued.