Autism

📖 Overview

Autism is a lifelong neurodevelopmental condition or difference. It is not an infection or something that can be “cured”. Autistic people vary enormously in communication, sensory processing, interests, behaviour, health, abilities and support needs.

Autism is defined by differences in social communication and interaction together with restricted or repetitive patterns of behaviour, interests or activities; sensory differences are also included in current diagnostic criteria. It exists across a wide spectrum of support needs — and that spectrum is not a line from mild to severe. An autistic person with high support needs in one area may have very low support needs in another. Functioning labels like high-functioning or low-functioning are widely rejected by the autistic community because they erase real difficulties or real strengths.

ANXIETY, OCD AND AUTISM
Anxiety and OCD can co-occur with autism, but repetitive behaviour, routines or focused interests are not automatically OCD. Assessment should consider the function of the behaviour, whether it is distressing or unwanted, and the person’s wider clinical picture.

SENSORY DIFFERENCES
Sensory differences are central to autism for many people. The autistic brain processes sensory information differently — often more intensely. Sounds, lights, textures, smells, tastes, and the feeling of clothing can cause genuine overwhelm or physical pain. Sensory differences can go in both directions: hypersensitivity (too much) and hyposensitivity (not enough, leading to seeking more input).

Common sensory experiences include: fluorescent lighting being painful or disorienting, certain food textures being intolerable, background noise in a classroom making concentration impossible, the feeling of seams in socks causing real distress, and crowds feeling physically overwhelming rather than merely uncomfortable.

COMMUNICATION DIFFERENCES
Autistic communication styles vary. Some autistic people prefer direct or literal language, need extra processing time, or find unspoken social rules and subtext difficult. Empathy also varies between individuals; autism should not be reduced to either “lacking empathy” or having unusually high empathy.

Common communication differences include: taking language literally and missing sarcasm, idioms, or implied meaning; needing processing time before responding; preferring directness and finding hints frustrating; struggling with small talk while being deeply engaged in meaningful conversation; and finding phone calls or unstructured social interaction particularly hard.

MASKING
Masking — also called camouflaging — is the process of suppressing or hiding autistic traits to appear neurotypical. It includes forcing eye contact, scripting conversations, copying others' social behaviour, suppressing stimming, and performing emotions that match social expectations rather than internal experience.

Masking can be exhausting and has been associated in research and lived experience with poorer mental health and burnout. The degree of masking and its effects vary between people. Some autistic people, including many women and girls, use compensatory or masking strategies that can make their needs less visible and contribute to later recognition. The relief of diagnosis after decades of masking is often profound.

AUTISTIC BURNOUT
“Autistic burnout” is a term used by autistic people and increasingly studied in research to describe profound exhaustion, reduced capacity and increased sensitivity after sustained demands. It is not currently a standalone medical diagnosis, and similar symptoms can overlap with depression, physical illness, sleep problems or other causes that may need assessment.

Reported autistic burnout experiences can include profound exhaustion, reduced ability to manage everyday tasks, increased sensory sensitivity, reduced speech or communication and a need for more recovery time. Sudden or severe loss of skills, speech or functioning should not automatically be attributed to burnout because physical illness, depression, catatonia, seizures and other conditions may require assessment.

AUTISM IN WOMEN AND GIRLS
Historically, autism research and clinical descriptions included more males than females. Recognition of autism in girls and women has improved, but some presentations may still be missed when clinicians rely on stereotypes or overlook masking and internalised distress.

Girls are more likely to mask effectively, to mirror the social behaviour of peers, to develop workarounds that hide their differences, and to internalise distress rather than externalise it. They are more likely to be misdiagnosed with anxiety, depression, borderline personality disorder, or eating disorders before autism is identified — if it ever is.

Late diagnosis in adulthood is common and often follows a daughter's diagnosis, a breakdown, or reading about autism and recognising oneself entirely.

AUTISM AND INTELLECTUAL DISABILITY
Autism and intellectual disability are separate conditions that can co-occur. Estimates vary by population, age, access to diagnosis and how intellectual functioning is measured, so a fixed percentage should not be applied to an individual. Assuming all autistic people have intellectual disability is wrong. Assuming no autistic person needs significant support is also wrong.

NON-SPEAKING AUTISM
Some autistic people do not use spoken language as their primary means of communication. This may be permanent or situational — some people are non-speaking during burnout or overload but verbal at other times. Non-speaking does not mean no communication and does not reflect cognitive ability. AAC (augmentative and alternative communication) can include speech-generating devices, symbol systems, signing and independent typing. Communication systems should be individually assessed, accessible and designed to support the person’s own independent communication.

MELTDOWNS AND SHUTDOWNS
A meltdown is a nervous system overwhelm response — not a tantrum, not a behaviour choice, not manipulation. When the sensory, social, and cognitive load exceeds capacity, the nervous system loses regulation. Meltdowns may be explosive (crying, shouting, physical responses) or internal. They are not deliberate misbehaviour. Reducing demands and sensory input, maintaining safety and allowing recovery can help; individual responses vary.

A shutdown is the same overwhelm turned inward — withdrawal, stillness, inability to respond, apparent absence. Both are neurological responses to overload, not character flaws.

AUTISM AND RELATIONSHIPS
Autistic people form deep, meaningful relationships. The idea that autistic people lack empathy or do not want connection is wrong. Many autistic people have intense empathy — what is sometimes called hyperempathy. The challenge is with the unspoken rules and performances that neurotypical social connection often requires.

Autistic relationships often work best when both people are direct, honest, and not reliant on subtext or performance. Many autistic people find deep connection in shared interests, online relationships, and neurodivergent communities where the social rules are different.