Guide · Neurodiversity
What is neurodivergent? What the word means and who it covers
Neurodivergent describes a person whose brain works differently from what society treats as typical. It is a descriptive word, not a diagnosis, and it most often covers autism, ADHD, dyslexia and related conditions.
Updated 25 September 2026 · About 8 minutes to read · All guides
In short
- Neurodivergent describes a person whose mind works in ways that differ significantly from what society treats as typical; neurotypical describes someone whose mind works within that range.
- Neurodiversity is the natural variation in how all human minds work, so a group can be neurodiverse and a person is neurodivergent.
- Neurodivergent is a descriptive and identity word, not a diagnosis, and there is no official list of who it covers.
- The conditions most often included are autism, ADHD, dyslexia, dyspraxia, learning disabilities and Tourette syndrome, so yes, ADHD is neurodivergent.
- No online test can tell you whether you are neurodivergent; an assessment can tell you whether a specific condition, such as autism or ADHD, is present.
What neurodivergent, neurotypical and neurodiversity mean
Neurodivergent describes a person whose mind works in ways that differ significantly from what society treats as “normal”. Neurotypical describes a person whose mind works within that range. Neurodiversity is the natural variation in how all human minds work — the whole spread, neurotypical people included.
Healthdirect calls neurodiversity and neurodivergence “nonmedical terms used to describe people who experience the world differently than others”. They describe people. They do not diagnose them.
| Word | What it describes | Used like this |
|---|---|---|
| Neurodivergent | One person whose mind works differently from the typical range | “My son is neurodivergent.” |
| Neurotypical | One person whose mind works within the typical range | “His sister is neurotypical.” |
| Neurodiversity | The variation across all people, and the movement built on that idea | “The school is trying to respect neurodiversity.” |
| Neurodiverse | A group that contains different kinds of minds | “A neurodiverse team.” |
You will often hear “neurodiverse” used about one person. Writers in the neurodiversity movement, such as Nick Walker, point out that an individual can diverge but only a group can be diverse, so “neurodivergent” is the more precise word for a person. In everyday conversation people will know what you mean either way.
Where the words came from
Neurodiversity is most often credited to Judy Singer, an Australian sociologist. Her honours thesis at the University of Technology Sydney, completed in 1998, drew on online communities of autistic people and argued for balancing the medical view of autism with a social one (Birkbeck, University of London). The journalist Harvey Blume used the word in print the same year.
That single-inventor story has been questioned. In 2024 a group of autistic researchers pointed to earlier online discussions, including a 1996 post about the “neurological diversity of people”, and argued that the idea was developed collectively by autistic people in the mid-1990s. Singer's thesis is one of the earliest written accounts. The idea itself came from a community.
Neurodivergent was coined around 2000 by Kassiane Asasumasu, a neurodiversity activist who is herself neurodivergent. She meant it to be broad: a word for anyone whose mind diverges from the norm, not only people with one particular diagnosis, and a word for including people rather than shutting them out (Walker).
Neurotypical grew out of the same 1990s online autistic communities, where “neurologically typical” was used to describe the majority. One of those communities called itself the Institute for the Study of the Neurologically Typical.
Who counts as neurodivergent?
There is no official list, and no organisation decides who qualifies. Because neurodivergent is a descriptive and identity word rather than a diagnosis, people use it more or less broadly.
The conditions Healthdirect lists are:
- autism
- ADHD (attention deficit hyperactivity disorder)
- dyslexia
- dyspraxia
- learning disabilities
- Tourette syndrome
Some people use the word more widely, as Asasumasu intended, including for differences that come from life experience, such as the lasting effects of trauma. Others keep it for conditions people are born with. Both uses are in circulation.
These conditions often overlap. A 2019 meta-analysis of 96 studies estimated that about 28% of autistic people also have ADHD, though estimates varied a great deal between studies.
For a sense of scale in Australia:
- Autism. The Australian Bureau of Statistics counted 290,900 autistic Australians in 2022, or 1.1% of the population, up 41.8% from 2018. The rate was highest in children aged 5 to 14, at 4.3%. These figures come from a household survey, reported by the person or a parent, not from clinical records.
- ADHD. The Australian ADHD clinical practice guideline estimates that 6% to 10% of Australian children and adolescents have ADHD. For adults it suggests 2% to 6%, based on international studies, because there is no Australian adult study using current diagnostic criteria.
Is ADHD neurodivergent?
Yes. ADHD is one of the conditions most commonly included, and Healthdirect lists it. Clinically, the Australian ADHD guideline describes ADHD as a neurodevelopmental disorder that usually begins before age 12.
The two ways of describing it sit side by side. Someone can say “I'm neurodivergent” as a statement of identity and have an ADHD diagnosis on paper. What the word does not do is replace the diagnosis where one is needed. ADHD medication, for example, is prescribed on a formal diagnosis, not on self-identification.
The same goes for autism, dyslexia and the rest. “Neurodivergent” is the umbrella. The diagnosis is the specific thing under it.
The neurodiversity view and the medical view
There are two main ways of thinking about autism, ADHD and related conditions, and you will meet both in schools, clinics and online.
The medical view treats them as disorders, defined by diagnostic criteria, identified by clinicians, and addressed with support and, where it helps, treatment. Its strength is that a diagnosis can explain difficulties and help people get support.
The neurodiversity view treats them as natural variation in how people think. It holds that much of the difficulty comes from a mismatch between the person and their surroundings, so changing surroundings and attitudes matters as much as changing the person. Writing in 2022, Elizabeth Pellicano and Jac den Houting argued that autism research has focused too heavily on deficits and on the individual in isolation, and too little on context.
Not everyone accepts the stronger versions of that view. In 2021, researchers Edmund Sonuga-Barke and Anita Thapar said the neurodiversity concept is useful, particularly its attention to environments and attitudes, but rejected a “radical interpretation” of it, because diagnosis and treatment have been shown to help many people. Their conclusion was that the two approaches work best together.
In practice most families use a bit of both. A diagnosis explains what is going on and can open the door to support. A neurodiversity lens shapes how that support is offered, such as adjusting the classroom rather than only trying to change the child.
Am I neurodivergent? What a test can and cannot tell you
An online “neurodivergent test” cannot tell you whether you are neurodivergent, for two reasons.
First, neurodivergent is not a diagnosis, so there is nothing to test for as such. A clinical assessment looks at specific conditions, such as autism, ADHD or intellectual disability, against published criteria.
Second, questionnaires miss people. In a UK study of 476 adults referred to a national autism diagnostic service, 64% of those who scored below the cut-off on a widely used autism questionnaire, the Autism-Spectrum Quotient, were in fact autistic. The researchers concluded that its usefulness for screening was limited.
An assessment establishes something different. A clinician takes a history reaching back to childhood, looks at whether the traits cause real difficulty in everyday life, and considers what else could explain the picture. In Australia, autism assessment is guided by the national autism guideline, approved by the NHMRC in December 2023, and ADHD assessment by the national ADHD guideline.
You do not need a diagnosis to describe yourself as neurodivergent, and plenty of people do not want or need one. A diagnosis matters when you need something that depends on it: ADHD medication, formal adjustments at work or study, or disability evidence for the NDIS. If life is working and you mainly want words for your experience, reading may be enough.
If you are weighing it up, for yourself or your child, the free screener covers autism, ADHD and learning, shows which way your answers lean, and will tell you if an assessment does not look worthwhile.
Questions people ask
What does neurodivergent mean?
Neurodivergent means having a mind that works in ways that differ significantly from what society treats as typical. It is most often used for autistic people and people with ADHD, dyslexia, dyspraxia or Tourette syndrome, though there is no official list. It is a descriptive word, not a diagnosis.
What is the difference between neurodivergent and neurotypical?
Neurotypical describes a person whose thinking, learning and sensing fall within the range society treats as typical. Neurodivergent describes someone whose mind works differently from that range. Neurodiversity covers everyone, both groups included, and none of the three words is a medical diagnosis.
Is ADHD neurodivergent?
Yes. ADHD is one of the conditions most commonly described as neurodivergent, alongside autism and dyslexia. Clinically it is a neurodevelopmental condition that usually begins before age 12. Medication and formal support still depend on a diagnosis rather than the label.
Is neurodivergent a diagnosis?
No. Healthdirect describes neurodiversity and neurodivergence as nonmedical terms. A clinician can diagnose specific conditions, such as autism or ADHD, but cannot diagnose someone as “neurodivergent”. Many people use the word about themselves without a diagnosis.
Can an online test tell me if I'm neurodivergent?
No. Online tests are not diagnostic, and even established questionnaires miss people: in one UK study, 64% of adults who scored below the cut-off on a common autism questionnaire turned out to be autistic. A test can help you decide whether an assessment is worth considering. Only an assessment can tell you whether a specific condition is present.
Who came up with the word neurodiversity?
It is usually credited to Australian sociologist Judy Singer, whose 1998 honours thesis at the University of Technology Sydney explored the idea, and journalist Harvey Blume used it in print that year. Autistic researchers have since argued that the idea grew collectively in online autistic communities in the mid-1990s. “Neurodivergent” was coined around 2000 by activist Kassiane Asasumasu.
Wondering whether an assessment makes sense? The free screener takes about three minutes, for your child, your adult son or daughter, or yourself. It suggests which assessment fits, and it will tell you if one does not look like the right next step. Start the free screener.
Where this information comes from
We would rather you checked us than took our word for it. Every link below is the original source, not a summary of one.
- Healthdirect Australia. Neurodiversity and neurodivergence.Government-funded national health information service; describes the terms as nonmedical and lists the conditions commonly included.
- Raising Children Network. Neurodiversity, neurodivergence and children.Australian parenting resource explaining neurodiversity, neurotypical and neurodivergent for families.
- Birkbeck, University of London. Judy Singer (Honorary Fellow profile).University profile describing Singer as an Australian sociologist and her late-1990s honours thesis at the University of Technology Sydney.
- Botha et al. (2024). The neurodiversity concept was developed collectively: An overdue correction on the origins of neurodiversity theory. Autism.Letter by autistic scholars setting out evidence that the neurodiversity idea predates Singer's thesis and emerged from online autistic communities.
- Walker N. Neurodiversity: Some Basic Terms & Definitions. Neuroqueer.Widely cited glossary by an autistic scholar defining the terms and stating that Kassiane Asasumasu coined “neurodivergent”.
- Pellicano et al. (2022). Annual Research Review: Shifting from 'normal science' to neurodiversity in autism science. Journal of Child Psychology and Psychiatry.Review arguing that autism research should move from a deficit-focused medical model towards a neurodiversity approach.
- Sonuga-Barke et al. (2021). The neurodiversity concept: is it helpful for clinicians and scientists? The Lancet Psychiatry.Commentary accepting the value of neurodiversity thinking but arguing it should sit alongside, not replace, diagnosis and treatment.
- Lai et al. (2019). Prevalence of co-occurring mental health diagnoses in the autism population: a systematic review and meta-analysis. The Lancet Psychiatry.Meta-analysis of 96 studies estimating that about 28% of autistic people also have ADHD, with wide variation between studies.
- Ashwood et al. (2016). Predicting the diagnosis of autism in adults using the Autism-Spectrum Quotient (AQ) questionnaire. Psychological Medicine.Study of 476 adults referred to a UK national autism diagnostic service showing the AQ questionnaire missed many people who were diagnosed autistic.
- Australian Bureau of Statistics. Autism in Australia, 2022.National household survey figures on how many Australians are autistic, by age and sex, with the change since 2018.
- Australian ADHD Professionals Association. Australian Evidence-Based Clinical Practice Guideline for ADHD: About ADHD.The national ADHD guideline's estimates of ADHD prevalence in Australian children and adults.
- Autism CRC. National Guideline for the Assessment and Diagnosis of Autism in Australia.The national standard for autism assessment, with recommendations approved by the NHMRC CEO on 8 December 2023.
Links to external sites are provided for reference. We do not control them and they may change. Last checked 25 September 2026.
This guide is general information, not medical advice. If you are worried about yourself or your child, talk to your GP.
Not sure where to start?
For your child, your adult son or daughter, or yourself. The free screener takes about three minutes and tells you which assessment fits — or whether you need one at all.