Has Autism Spectrum Disorder Lost Its Meaning?

Reflections on a Thought-Provoking New Article

A recent article published in Psychological Medicine asks a provocative question: Has Autism Spectrum Disorder (ASD) become such a broad category that it risks losing its clinical meaning and contributing to misdiagnosis?

For many families, educators, and clinicians, this question may feel uncomfortable. After all, increased awareness and understanding of autism have helped countless children receive support, accommodations, and interventions that might not have been available to previous generations.

At the same time, the article raises concerns that deserve thoughtful discussion rather than dismissal. As a pediatric neuropsychologist who has spent years conducting comprehensive neuropsychological evaluations with children and young adults, my perspective is that both realities can be true at the same time: We are better at recognizing autism than ever before, and we must remain vigilant about ensuring that diagnoses are made carefully, comprehensively, and based on sufficient evidence.

What Is the Article Arguing?

The authors suggest that the concept of autism has expanded significantly over time. As diagnostic criteria have broadened and awareness has increased, individuals with increasingly diverse presentations are being diagnosed under the same umbrella.

The author raises concerns that some behaviors commonly associated with autism—such as social difficulties, sensory sensitivities, emotional dysregulation, rigid thinking, or communication challenges—can also occur in a variety of other developmental, psychological, medical, and genetic conditions.

Their concern is not that autism is “not real” or that people are intentionally misdiagnosing children. Rather, they argue that when diagnostic boundaries become too broad, there is a risk that different underlying conditions may be grouped together under a single label, potentially leading to misunderstandings about a child’s needs.

Whether one fully agrees with the authors’ conclusions or not, the questions they raise are worth considering.

Why Autism Diagnoses Have Increased

When discussing rising autism prevalence, it is tempting to search for a single explanation. In reality, the answer is likely multifaceted.

Several factors have almost certainly contributed:

• Increased public awareness among parents, educators, and healthcare providers.

• Better recognition of autism in girls and individuals with more subtle presentations.

• Expanded diagnostic criteria over time.

• Greater access to services that often require a formal diagnosis.

• Improved screening and identification efforts.

• Reduced stigma surrounding developmental and neurodivergent differences.

These changes have undoubtedly helped many children receive support who might previously have been overlooked. However, the possibility that some individuals are being incorrectly diagnosed should not be dismissed outright. Any diagnostic system can become vulnerable to error when evaluations are rushed, incomplete, or conducted without sufficient expertise.

The Challenge: Similar Symptoms, Different Causes

One of the most important lessons from neuropsychology is that similar behaviors can arise from very different underlying causes. For example, a child may appear socially withdrawn because of:

• Autism

• Social anxiety

• Language disorders

• Attention-Deficit/Hyperactivity Disorder (ADHD)

• Learning disabilities

• Trauma

• Depression

• Intellectual disability

• Certain genetic or neurological conditions

Likewise, a child who struggles with flexibility, emotional regulation, peer relationships, or sensory experiences may or may not meet criteria for autism.

This is precisely why diagnosis should never be based solely on a checklist of symptoms or a brief snapshot of behavior. The question should not simply be, “Does this child have autistic traits?” The more important question is, “What best explains this child’s developmental profile?”

The Risks of Limited Evaluations

The article also highlights concerns about diagnostic practices, particularly as demand for autism evaluations has increased dramatically.

Many clinicians are working hard to meet this growing need. However, the pressure to provide timely answers can sometimes result in evaluations that rely on limited information.

While every evaluation model has strengths and limitations, concerns arise when diagnoses are made using:

• Brief and sometime online-only appointments that collect limited data.

• Minimal collateral information from parents, teachers, or other caregivers.

• Insufficient direct observation of social communication and behavior.

• Overreliance on self-report questionnaires.

• Failure to consider alternative explanations for symptoms.

• Limited knowledge of neurodevelopmental, neurological, medical, or genetic conditions that can mimic aspects of autism.

Autism is ultimately a clinical diagnosis. It requires the integration of multiple data sources and careful clinical judgment. No single questionnaire, test score, observation, or interview can determine a diagnosis in isolation.

Why Comprehensive Assessment Matters

For families, the goal of an evaluation should not be obtaining a particular diagnosis. The goal should be understanding the child/teen as accurately as possible.

A comprehensive assessment seeks to answer several questions:

• What are this child’s strengths?

• Where are they struggling?

• What factors are contributing to those struggles?

• Does X [insert diagnosis, such as Autism] best explain the pattern of findings?

• Are there other developmental, psychological, neurological, educational, or medical factors involved?

• What supports and interventions are likely to help most?

Sometimes the answer is autism.

Sometimes it is not.

Sometimes autism is present alongside other conditions that deserve equal attention.

The most important outcome is diagnostic clarity that leads to meaningful support.

What This Means for Parents

If you have concerns about your child, this article should not discourage you from seeking an evaluation. In fact, I would argue the opposite. Parents are often the first to notice when something feels different about their child’s development, social relationships, learning, communication, or emotional functioning. Those observations matter.

The takeaway is not that concerns should be minimized or ignored. Rather, concerns deserve to be taken seriously enough to warrant a thorough evaluation conducted by someone with expertise in child development, neurodevelopmental disorders, and differential diagnosis.

An accurate diagnosis can open doors to understanding, support, and intervention. An inaccurate diagnosis can sometimes obscure the true source of a child’s challenges.

That distinction matters.

Moving the Conversation Forward

The debate raised by this article is unlikely to be resolved anytime soon. Reasonable clinicians may disagree about where diagnostic boundaries should be drawn or how best to conceptualize autism’s remarkable diversity.

What should unite us, however, is a commitment to careful assessment, thoughtful clinical reasoning, and a willingness to look beyond labels. Whether a child ultimately receives an autism diagnosis or another explanation for their difficulties, families deserve answers grounded in comprehensive data, clinical expertise, and an appreciation for the complexity of human development.

As our understanding of autism continues to evolve, perhaps the most important question is not whether autism has lost its meaning, but whether we are doing everything possible to ensure that each child receives the most accurate understanding of who they are and what they need to thrive.

Dr. Greenfield is a pediatric neuropsychologist who specializes in comprehensive assessment and differential diagnosis. For more information about her practice and services, visit www.DrGreenfield.com or email info@drgreenfield.com