Understanding Neurodivergence

What Is Neurodivergence?

Neurodivergence describes the natural variation in how human brains function. Just as biodiversity makes ecosystems resilient, neurodiversity makes human communities stronger. The term was coined by autism advocate Kassiane Asasumasu and is rooted in the neurodiversity movement, which reframes conditions like autism, ADHD, dyslexia, Tourette's, and others as natural variations rather than disorders to be cured.

Being neurodivergent means your brain processes information, senses the environment, and experiences the world differently from what society considers "typical." This isn't a deficit - it's a difference. About 15-20% of the global population is estimated to be neurodivergent, though many go undiagnosed or unrecognized.

Common Neurotypes

Autism / Autism Spectrum

Autism is a lifelong developmental difference affecting communication, sensory processing, and social interaction. Autistic people often experience heightened sensitivity to sensory input (sounds, lights, textures), prefer routine and predictability, and may have intense, focused interests. Many autistic people also experience alexithymia (difficulty identifying emotions) and use stimming (repetitive movements) for self-regulation. The autistic community increasingly prefers identity-first language ("autistic person") and rejects the idea that autism is something to be cured.

ADHD (Attention-Deficit/Hyperactivity Disorder)

ADHD is characterized by differences in executive function - the brain's ability to plan, prioritize, focus, and regulate impulses. Contrary to stereotypes, ADHD isn't just about being easily distracted or hyperactive. It involves an interest-based nervous system: tasks that feel urgent, interesting, or novel get immediate attention, while routine tasks can feel nearly impossible to start. ADHD also involves time blindness (difficulty sensing the passage of time), rejection-sensitive dysphoria (intense emotional response to perceived rejection), and emotional dysregulation.

Dyslexia & Dyspraxia

Dyslexia affects reading, spelling, and phonological processing, but often comes with strengths in spatial reasoning, pattern recognition, and creative problem-solving. Dyspraxia (Developmental Coordination Disorder) affects motor coordination, planning movements, and spatial awareness. Both are common and frequently co-occur with other neurotypes.

Tourette's & Tic Disorders

Tourette's Syndrome involves involuntary motor and vocal tics. Tics are neurological, not behavioral, and they wax and wane with stress, excitement, and fatigue. Many people with Tourette's also have co-occurring conditions like ADHD, OCD, or anxiety.

Key Concepts in Neurodiversity

Masking is the practice of suppressing neurodivergent traits to appear neurotypical. While it can be a survival strategy in unwelcoming environments, prolonged masking is linked to burnout, depression, and loss of identity.

Sensory Overload occurs when the brain receives more sensory input than it can process. It can feel like panic, pain, or the urgent need to escape. Common triggers include bright lights, loud noises, strong smells, and crowded spaces.

Executive Dysfunction is a breakdown in the brain's ability to organize, initiate, and complete tasks. It's not laziness - it's a neurological difference that makes certain types of task initiation genuinely inaccessible at times.

Stimming (self-stimulatory behavior) includes repetitive movements or sounds that help regulate the nervous system. Hand-flapping, rocking, spinning, or repeating words are all forms of stimming. It's a healthy, natural regulatory tool.

AuDHD: When Autism and ADHD Overlap

AuDHD is the co-occurrence of autism and ADHD - and it's more common than you might think. An estimated 30-50% of autistic people also have ADHD, and a significant percentage of people with ADHD are also autistic. Yet the two conditions were only officially allowed to be diagnosed together after the DSM-5 was updated in 2013.

Living with AuDHD means navigating constant internal tension. Autism craves routine, predictability, and sameness. ADHD craves novelty, stimulation, and spontaneity. These opposing needs can create a push-pull dynamic that's exhausting - but also uniquely creative. Many AuDHDers describe intense hyperfocus cycles, rapid shifts between special interests, deep empathy combined with executive dysfunction, and a feeling of never quite fitting into either the autistic or ADHD community exclusively.

If you're AuDHD, you're not broken or contradictory. Your brain contains both structures - and learning to work with both, rather than fighting one to satisfy the other, is the path to sustainability.

The History of the Neurodiversity Movement

The term "neurodiversity" was coined by sociologist Judy Singer in her 1998 sociology thesis. Singer, who is autistic herself, proposed that neurological differences should be understood as natural human variation rather than deficits. Around the same time, journalist Harvey Blume wrote about neurodiversity in The Atlantic, bringing the concept to a broader audience.

The movement grew alongside the autistic self-advocacy movement, led by organizations like the Autistic Self Advocacy Network (ASAN). The central tenets are: neurodiversity is a natural and valuable form of human diversity; neurological differences should not be cured but accommodated; and autistic and otherwise neurodivergent people should have a voice in decisions that affect them.

Today, the neurodiversity framework is increasingly embraced in education, employment, and mental health - though there is still tension between the social model (which sees disability as created by societal barriers) and the medical model (which focuses on diagnosis and treatment). Both frameworks can coexist: acknowledging that neurodivergence is a natural variation doesn't mean denying that some people need significant support.

"Nothing About Us Without Us"

This phrase, originating from the disability rights movement, is a cornerstone of neurodiversity advocacy. It means that neurodivergent people must be included in decisions, policies, and conversations that affect our lives - not as tokens or consultants, but as leaders and decision-makers. When research is conducted about us without our input, when therapies are designed for us without our voices, when media covers us without our perspectives - that is not advocacy. It is exclusion.

The most trustworthy neurodivergent resources are those created by ND people, or in genuine partnership with us. Organizations that center ND voices in leadership, pay ND contributors, and actually listen when the community pushes back are the ones worth following.

Neurodivergent-Led Organizations to Follow

These organizations are run by and for neurodivergent people. They are reliable sources of information, advocacy, and community:

• Autistic Self Advocacy Network (ASAN) - The leading nonprofit run by and for autistic people. ASAN produces policy briefs, runs leadership programs, and advocates for disability rights at the federal level. Their tagline: "Nothing About Us Without Us."
• NeuroClastic - A collective of autistic and neurodivergent writers publishing articles on identity, advocacy, and culture. Community-driven and peer-reviewed by ND people.
• Thinking Person's Guide to Autism - A resource that centers autistic voices and evidence-based information, run by an editorial team that includes autistic people and parents who follow autistic leadership.
• Autistic Women & Nonbinary Network (AWN) - Provides community, support, and resources for autistic women, girls, nonbinary people, and all others of marginalized genders.
• ADHD Evidence - An ADHD-led project providing evidence-based information about ADHD, including research summaries and myth-busting content.
• Neurodiversity United - A collective of neurodivergent activists working to shift public understanding of neurodiversity through storytelling, education, and policy change.

FAQ: Common Questions About Neurodivergence

Can you be neurodivergent without a formal diagnosis?

Yes. Many people are self-identified or self-diagnosed, especially those who face barriers to assessment - cost, long wait lists, biased diagnostic criteria, or lack of access to specialists. Self-diagnosis is widely accepted within neurodivergent communities, particularly for autism and ADHD, where formal assessment can be prohibitively expensive or difficult to access. You know your own brain better than anyone.

What's the difference between a neurotype and a mental illness?

Neurotypes (like autism, ADHD, dyslexia) are lifelong neurological differences present from birth or early development. Mental illnesses (like depression, anxiety, PTSD) are conditions that can develop at any point and often fluctuate in severity. The two frequently co-occur - many neurodivergent people experience anxiety or depression, often as a result of living in an unaccommodating world. Neither invalidates the other.

Can you be more than one neurotype?

Absolutely. Co-occurring neurotypes are the rule, not the exception. AuDHD (autism + ADHD) is one common combination. Dyslexia, dyspraxia, and dyscalculia also frequently co-occur. Having multiple neurotypes doesn't mean you're "more" neurodivergent - it means your brain has a unique configuration of traits and support needs.

Is neurodivergence a disability?

Under many legal frameworks (like the ADA in the US), yes - neurodivergence is considered a disability when it substantially limits major life activities. But many neurodivergent people don't identify as disabled, and that's valid too. The social model says people are disabled not by their neurology but by societal barriers. You get to choose the language and framework that fits your experience.

Embracing Neurodiversity

The neurodiversity paradigm asks us to shift from asking "what's wrong with this person?" to "what does this person need?" It recognizes that many of the challenges neurodivergent people face come not from their neurology, but from living in a world designed for neurotypical brains. When we accommodate sensory needs, respect different communication styles, and celebrate cognitive variety, everyone benefits.

Your brain is not a broken version of someone else's. It's a unique map of a world only you can navigate - and that is not a limitation. It's a perspective.