What Is Neurodiversity?
Neurodiversity is the concept that neurological variation is a natural and valuable form of human diversity, not inherently a deficit or disorder to be corrected. The term was coined by Australian sociologist Judy Singer in 1998. The neurodiversity paradigm holds that the range of human neurological profiles - including autism, ADHD, dyslexia, dyspraxia, dyscalculia, Tourette syndrome, and others - represents natural cognitive variation within the species.
Conditions formally grouped under the neurodiversity umbrella include:
- Autism Spectrum Condition (ASC/ASD) - characterized by differences in social communication, sensory processing, and patterns of interest or behavior
- ADHD (Attention-Deficit/Hyperactivity Disorder) - characterized by differences in attention regulation, executive function, and impulse control
- Dyslexia - differences in reading, writing, and spelling processing
- Dyspraxia / Developmental Coordination Disorder (DCD) - differences in motor coordination and planning
- Dyscalculia - differences in numerical and arithmetic processing
- Tourette Syndrome - characterized by involuntary motor and/or vocal tics; commonly co-occurs with OCD and ADHD
Approximately 15-20% of the global population is estimated to be neurodivergent in some form.
The Co-Occurrence: Prevalence Data
Research consistently finds that neurodivergent people are significantly overrepresented in gender-diverse communities, and conversely, that transgender and gender-diverse (TGD) people have substantially higher rates of neurodivergent conditions than the cisgender population. (TGD is used throughout this section as the umbrella shorthand used in the cited research.)
Autism & gender diversity:
| Measure | Finding | Source |
|---|---|---|
| Autism prevalence in TGD individuals | ~11% (vs. 1-2% in general population) | Kallitsounaki & Williams, meta-analysis, 2022/2023 |
| Autistic adults with gender identity differing from birth assignment | ~15% | Walsh et al., 2018 |
| TGD people vs. cisgender: likelihood of being autistic | 3-6× higher | Warrier et al., Nature Communications, 2020 |
| Autistic individuals: likelihood of being gender diverse | Up to 7× higher than allistic (non-autistic) peers | Multiple studies; Hisle-Gorman et al., 2019 |
| Trans children/adolescents in clinical care: elevated autistic traits | ~45.8% exhibited elevated autistic traits | Cohort study data |
| Co-occurrence range across studies | 3.8%-14.5% | Van der Miesen et al., 2015 |
The landmark large-scale study by Warrier et al. (2020, Nature Communications, N=641,860 across five datasets) found that compared to cisgender individuals, transgender and gender-diverse individuals had higher rates of autism diagnosis on average. Crucially, for both autistic and non-autistic participants, TGD individuals scored higher on self-report measures of autistic traits, systemizing, and sensory sensitivity, and lower on measures of empathy - suggesting that the overlap is not reducible to autism diagnosis alone but reflects broader neurocognitive patterns.
ADHD & gender diversity:
The co-occurrence of ADHD and gender diversity is less studied than autism but increasingly documented. In the Warrier et al. (2020) dataset, transgender and gender-diverse individuals also showed elevated rates of ADHD compared to cisgender peers. A 2024 study (N=1,528) found anxiety disorders were disproportionately prevalent among non-binary (63.2%) and transgender (37.5%) ADHD participants - substantially higher than cisgender ADHD populations. ADHD symptom presentation is also affected by gender: AFAB individuals with ADHD more commonly present with inattentive rather than hyperactive symptoms, leading to diagnostic delays and underdiagnosis - with downstream effects on gender exploration and self-understanding.
Children and adolescents - longitudinal data:
A 2024 study (Mo et al., Journal of Child Psychology and Psychiatry, N=291 children aged 4-12) found that gender diversity correlated significantly with dimensional (trait-level) neurodivergent characteristics rather than solely with categorical diagnoses - suggesting the autism-gender link operates across a spectrum of neurodivergent traits, not just among those with formal diagnoses. A longitudinal study (Autism Research, 2024) confirmed that autistic children endorse more binary and non-binary gender diversity than non-autistic children.
Theoretical Explanations for the Co-Occurrence
No single explanation accounts for the full pattern; researchers have proposed several non-mutually-exclusive frameworks:
1. Resistance to social conditioning Neurodivergent people may experience less pressure to conform to socially imposed gender norms, or may be less adept at unconsciously absorbing and performing those norms. If cisnormativity is a form of social conditioning, those whose neurology makes them less susceptible to social learning pressures may more readily diverge from it. This leads to a provocative hypothesis: gender diversity may not be intrinsically elevated in neurodivergent people - rather, it may be suppressed in neurotypical people through social conformity mechanisms.
2. Reduced social masking Neurotypical gender conformity is often enforced through social surveillance and internalized shame. Autistic people in particular may be less attuned to these enforcement mechanisms or less motivated to perform expected gender roles - making latent gender diversity more visible rather than more prevalent.
3. Sensory and embodied experience Differences in interoception (internal body awareness) and sensory processing - common in autism and ADHD - may shape how people experience and relate to their sexed bodies, potentially intensifying or clarifying gender incongruence.
4. Cognitive systemizing and categorical thinking Research shows TGD individuals score higher on average on systemizing (preference for rule-based systems, patterns, and categories). Some researchers suggest this cognitive profile may lead to more rigorous or self-aware engagement with questions of identity.
5. Intersecting minority stresses Neurodivergent and gender-diverse identities are each associated with elevated minority stress, discrimination, and mental health challenges. Holding both identities compounds these stresses - neuro-gender queer individuals may experience bias-based harassment targeting both their neurodivergence and their gender.
6. Shared biological underpinnings Some researchers propose that overlapping genetic, hormonal (including prenatal androgen exposure), and developmental factors influence both neurodevelopmental variation and gender identity - though this remains an active research area without settled conclusions.
Neuroqueer Theory
Neuroqueer is both an identity and a theoretical framework emerging from the intersection of disability studies, neurodiversity advocacy, and queer theory. The term gained momentum around 2014 and was most thoroughly articulated by autistic scholar and activist Nick Walker in Neuroqueer Heresies (2021).
Core argument: the social systems that enforce "normal" cognition (neuronormativity) and "normal" gender/sexuality (cis-heteronormativity) are deeply intertwined. Liberating oneself from one set of norms is connected at a fundamental level to liberation from the other. Neuroqueer theory thus frames neurodivergence and queerness as mutually illuminating - not merely co-occurring conditions but structurally related forms of deviation from dominant social norms.
Key concepts:
- Neuronormativity - the assumption that there is one correct or superior way for a human brain to work, parallel to heteronormativity/cisnormativity
- Neuroqueering - the practice of queering neuronormativity and neuroqueering heteronormativity simultaneously; living and being in ways that challenge both
- Autigender / Neurogender - identity terms (see below) arising from neuroqueer communities
Neurogender Identities
Within neurodivergent LGBTQ+ spaces - particularly online communities originating on Tumblr in the early 2010s - a cluster of neurogender identities has developed. These are gender identities whose experience is shaped by, or can only be understood in the context of, the person's neurodivergence.
Important framing: These identities are not claiming neurodivergence as a gender; rather, they name experiences of gender that are inextricably intertwined with one's neurodivergent way of being in the world.
| Identity | Description |
|---|---|
| Neurogender | Umbrella term for any gender identity that is significantly influenced by or inseparable from one's neurodivergent experience |
| Autigender | A gender that is connected to or can only be understood through the lens of autism; one's autistic experience of the world shapes one's experience of gender in a way that cannot be separated from it |
| ADHDgender / ADDgender | Gender experience shaped by and inseparable from one's ADHD; may involve a sense of gender that is fluid, hard to pin down, or strongly tied to states of attention and focus |
| Bipolargender | Gender identity affected by bipolar disorder; the experience of gender is intertwined with one's bipolar experience |
| Cyclogender | Describes a bipolar person whose experienced gender shifts with the type of episode (manic, depressive, mixed) |
Most within these communities agree neurogenders are exclusive to neurodivergent people - the gender is defined by its relationship to a neurodivergent experience that non-neurodivergent people do not have. These identities remain contested in some broader gender discourse, but are well-established and meaningful within the communities that use them.
See also the Part 2 profiles for Gendervague (a neurogender whose gender is inseparable from neurodivergence) and Xenogender (gender described through non-traditional frameworks, vocabulary that developed partly within autistic communities).
Diagnostic Implications: Gender-Blind and Neurodivergence-Blind Care
The co-occurrence of neurodiversity and gender diversity creates specific clinical challenges:
Misattribution: Gender dysphoria-related distress may be misread as a symptom of autism or ADHD (or vice versa), delaying appropriate gender-affirming care.
Diagnostic under-recognition of autism in AFAB people: Autism in AFAB individuals is systematically underdiagnosed because diagnostic criteria were developed from studies predominantly of AMAB children. AFAB autistic people often engage in more effective masking (consciously or unconsciously concealing autistic traits to conform to social expectations) - including performing gender norms more convincingly, which may delay both autism and gender-diverse identity recognition. When masking breaks down in adolescence or adulthood, both autism and gender diversity may surface simultaneously.
Double standards in gender care: Some clinicians have expressed concern that autism or ADHD might "confuse" a person's gender identity, leading to gatekeeping. Autistic people themselves consistently report that autism does not prevent them from understanding their gender identity - while it may complicate expressing or communicating that identity within clinical systems.
Articulating dysphoria: Neurodivergent people may have difficulty describing interoceptive experiences - bodily dysphoria - using standard clinical language, not because the experience is absent but because expressing it presents challenges.
Transition process challenges: Healthcare navigation, multi-provider systems, and unpredictable schedules may be particularly burdensome for autistic people who benefit from predictability and routine.
Clinical recommendations (drawn from Warrier et al. 2020; Van der Miesen et al. 2015; Dewinter et al. 2022):
- Screen for autism and ADHD in transgender patients presenting for gender care
- Consider autism as a possible diagnosis in older cisgender females and transmasculine people presenting with symptoms of anxiety, depression, OCD, or academic difficulties where autism may have gone unrecognized when the person presented as female
- Include gender identity as a routine part of clinical conversations with autistic patients
- Assess and treat co-occurring anxiety and depression in neurodivergent trans patients
- Adapt care pathways to accommodate neurodivergent communication needs and preferences for structure
Intersecting Stigmas and Mental Health
Neurodivergent gender-diverse people navigate a double layer of social stigma and minority stress. Research indicates neuro-gender queer individuals may experience bias-based harassment targeting both dimensions of their identity. A nationally representative US survey found that 76.1% of LGBTQ+ youth reported in-person verbal harassment at school, while 34.4% reported harassment specifically targeting disability or neurodivergence.
The convergence of neurodivergence and gender diversity is not primarily a problem to be pathologized - it is a feature of human variation that requires better informed, more affirming support structures in healthcare, education, and community life.
Key Sources
- Warrier, V., Greenberg, D. M., Weir, E., et al. (2020). Elevated rates of autism, other neurodevelopmental and psychiatric diagnoses, and autistic traits in transgender and gender-diverse individuals. Nature Communications, 11, 3959.
- Kallitsounaki, A., & Williams, D. M. (2023). Autism Spectrum Disorder and Gender Dysphoria/Incongruence: A systematic literature review and meta-analysis. Journal of Autism and Developmental Disorders.
- Walsh, R. J., Krabbendam, L., Dewinter, J., & Begeer, S. (2018). Gender identity differences in autistic adults: Associations with perceptual and socio-cognitive profiles. Journal of Autism and Developmental Disorders, 48, 4070-4078.
- Van der Miesen, A. I. R., Hurley, H., & De Vries, A. (2015). Gender dysphoria and autism spectrum disorder: A narrative review. International Review of Psychiatry, 28(1), 70-80.
- Mo, A., et al. (2024). Gender diversity is correlated with dimensional neurodivergent traits but not categorical neurodevelopmental diagnoses in children. Journal of Child Psychology and Psychiatry.
- Dewinter, J., Klomp, S., & van der Miesen, A. I. R. (2022). Autisme, genderdiversiteit en genderdysforie. Tijdschrift voor Orthopedagogiek, 61(5), 44-51.
- Walker, N. (2021). Neuroqueer Heresies: Notes on the Neurodiversity Paradigm, Autistic Empowerment, and Postnormal Possibilities. Autonomous Press.
- Barnett, J. P. (2024). Neuroqueer frontiers: Neurodiversity, gender, and the (a)social self. Sociology Compass.
- Singer, J. (1998). Odd People In: The Birth of Community Amongst People on the Autistic Spectrum. [Thesis coining "neurodiversity."]