A formal statement from NeuroHub Community Ltd.

Recent commentary in education media has suggested that autism may no longer be best understood as a spectrum. In an interview published by TES Magazine, psychologist Uta Frith argues that the autism spectrum has expanded so widely that the concept has become scientifically meaningless, proposing a return to narrower diagnostic categories such as childhood autism or Asperger’s syndrome.

As Autistic researchers, authors, and practitioners working with Autistic adults, we believe it is important to respond to these claims. While the challenges of researching heterogeneous populations are real, abandoning the spectrum model would represent a significant step backwards both scientifically and socially.

This statement outlines why the autism spectrum remains an essential concept and why attempts to narrow the definition of autism risk misunderstanding both modern science and lived experience.

The Spectrum Reflects Human Neurological Diversity

One of the central claims made in the interview is that autism may no longer share a common defining feature across all people diagnosed with it. This diversity is presented as evidence that the concept of the spectrum has expanded too far.

However, expecting autism to have a single biological mechanism misunderstands the nature of many human traits.

Human neurocognition is inherently variable. Many conditions and characteristics exist along continua rather than within rigid diagnostic boundaries. Sensory processing, cognition, personality traits, and learning styles all vary significantly across individuals. Autism reflects a similar pattern of distributed neurocognitive differences rather than a single uniform biological pathway.

The spectrum model emerged precisely because earlier attempts to divide autism into rigid categories proved unreliable. Subtypes such as Asperger’s syndrome and “classic autism” could not be consistently distinguished in clinical practice. Individuals frequently moved between categories depending on the clinician assessing them or the stage of life they were in.

The spectrum model was adopted because it better reflects the complexity of autistic neurocognitive development.

Rising Diagnoses Reflect Recognition, Not Dilution

Concerns about the expansion of the autism spectrum are often tied to the significant rise in diagnoses over the past several decades. Increases in diagnosis are sometimes interpreted as evidence that the category has become overly broad.

A more plausible explanation is that diagnostic systems are correcting earlier blind spots.

Historically, autism research focused almost entirely on young boys with significant support needs. As a result, women, adults, people from minority backgrounds, and individuals who developed strong compensatory strategies were frequently overlooked or misdiagnosed.

As research has broadened and Autistic people themselves have begun contributing knowledge about their experiences, clinicians have recognised that autism presents in far more diverse ways than previously understood.

The increase in diagnoses reflects this expanded understanding rather than a dilution of the concept itself.

Masking And Camouflaging Complicate Observation

A major development in contemporary autism research has been the recognition of masking or camouflaging.

Many Autistic people learn to suppress or compensate for their natural behaviours in order to navigate social environments that are not designed for them. This can involve consciously imitating social behaviours, suppressing stimming, or constantly monitoring interactions in order to avoid social penalties.

Externally, a person who masks effectively may appear socially fluent or only mildly awkward. Internally, however, this effort can produce significant cognitive load, sensory overwhelm, and long-term exhaustion.

Masking has been documented in a growing body of research and is widely recognised by clinicians working with late-diagnosed adults. Ignoring this phenomenon risks misunderstanding how autism presents in many people.

In many cases, what appears to be “mild autism” is not a milder neurocognitive difference but the result of sustained social adaptation.

Distress Often Emerges From Ecosystemic Mismatch

Autistic distress is frequently interpreted solely through a deficit-based framework, assuming that difficulties arise directly from neurocognitive impairment.

However, a growing body of research suggests that outcomes for Autistic people are strongly shaped by environmental and ecosystemic compatibility.

When environments (and the wider evosystem) impose persistent sensory, social, or cognitive demands that exceed a person’s capacity to adapt, distress emerges. This can manifest as anxiety, burnout, shutdown, or withdrawal.

In this sense, many difficulties associated with autism arise not only from neurocognition but from the relationship between an Autistic person and the ecosystem they inhabit.

Understanding autism through this ecological lens explains why individuals with similar neurocognitive traits may experience vastly different outcomes depending on the environments in which they live, and the conditions of their niche of the ecosystem.

The Risks Of Returning To Subtypes

The suggestion that autism should return to narrower diagnostic categories such as Asperger’s syndrome may appear appealing because it promises greater clarity.

In practice, these categories were abandoned precisely because they failed to produce consistent diagnostic outcomes.

Clinicians repeatedly found that individuals moved between categories over time and that different professionals often disagreed about which diagnosis applied. These inconsistencies ultimately led to the adoption of the spectrum model.

Reintroducing these categories would likely recreate the same diagnostic confusion that led to their removal.

The Danger Of A Szaszian Framing Of Autism

Perhaps the most concerning implication of claims that autism has become “too broad” is the philosophical position that sits beneath them.

This perspective echoes what might be described as a Szaszian attitude toward mental health and neurodevelopmental conditions.

Psychiatrist Thomas Szasz famously argued that many psychiatric diagnoses represented forms of social classification rather than legitimate conditions. While his critiques were aimed primarily at coercive psychiatry, the logic of his position easily slides into something far more damaging when applied to neurocognitive differences.

When the expansion of autism recognition is framed as a mistake or an overreach, it risks implying that many people currently recognised as Autistic are in fact misrepresenting or exaggerating their experiences.

In effect, this framing positions Autistic people as malingering or mistaken about their own lives, fundamentally creating epistemic injustice.

The consequences of such thinking are profound. If the legitimacy of the spectrum is called into question, entire groups of Autistic people, particularly adults, women, and those without intellectual disability, risk being erased from the conversation.

Their experiences become reinterpreted not as valid expressions of neurodivergence but as diagnostic errors.

This erasure has occurred before in the history of autism research. For decades, large portions of the Autistic population were effectively invisible to diagnostic systems because the prevailing models of autism were too narrow.

Repeating that mistake would not advance science; it would simply reinstate an outdated and exclusionary framework.

Autistic Knowledge Must Be Central

Over the past two decades, Autistic people have increasingly contributed to research, scholarship, and advocacy around autism.

These contributions have expanded understanding of masking, sensory processing, burnout, identity development, and community belonging. They have also highlighted the ways in which environmental structures shape autistic wellbeing.

Autism is not only a diagnostic label applied by clinicians. It is also a lived experience interpreted and understood by the people who inhabit it.

Any attempt to redefine autism without engaging Autistic voices risks repeating the historical exclusion that shaped early research.

Moving The Conversation Forward

The diversity of Autistic presentations does present genuine challenges for researchers. Studying heterogeneous populations requires careful methodology and sophisticated theoretical models.

However, narrowing the definition of autism is unlikely to resolve these challenges. A more productive path forward lies in developing frameworks that better account for the interaction between neurocognitive differences and environmental contexts.

Such approaches recognise autism as a dynamic relationship between individuals and the ecosystem they inhabit.

The autism spectrum remains a scientifically grounded concept because it reflects the reality of human neurodiversity.

Reducing that complexity may make research appear simpler, but it would come at the cost of accurately representing the lives and experiences of Autistic people.

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About the Author

David Gray-Hammond is an award winning Autistic author, researcher, and consultant specialising in neurodivergence competence and Autistic wellbeing. Through NeuroHub Community Ltd, he provides resources, training, and peer-led support for Autistic people, families, and professionals.

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