What Do We Mean by “Neuro” in Neurodiversity?

The term neurodiversity is widely used, but an important question is often left insufficiently explored: what exactly do we mean by neuro? Is neurodiversity simply about differences in the brain as a biological organ, or does the concept need to extend further? How we answer this matters, because our definitions shape how we understand human difference, whether we pathologise it, and how we think about support, adaptation, and wellbeing.

A narrow biological interpretation risks keeping neurodiversity trapped within the same medicalised and reductionist frameworks that have historically dominated mental health and developmental sciences. In this view, divergence becomes something located inside an organ, a deviation from normal machinery. Biology clearly matters, as do genetics, nervous system functioning, and neurodevelopment, but biology does not exist independently of context. Modern science increasingly recognises that genes are not deterministic instructions acting in isolation. Gene expression is shaped through developmental environments, epigenetic processes, physiological conditions, stress, and learning histories.

The brain itself is plastic, adaptive, and continuously influenced by experience.

The same challenge applies to how we think about mind. If mind is treated purely as something contained within the skull, produced only by brain activity, we inherit a mechanistic model that has been scientifically useful but philosophically limited. Broader perspectives in psychology, philosophy of mind, and contextual behavioural science suggest that mind is better understood as an emergent process shaped through interaction between biology, behaviour, language, relationships, and environment (Hayes et al., 2012; Varela, Thompson, & Rosch, 1991). Human thinking does not occur in a vacuum. Our sense of self, emotional responses, behavioural habits, and social understanding develop through context, culture, language, and lived experience.

This matters greatly for neurodiversity, because many of the traits we discuss are not meaningfully reducible to biology alone. Executive functioning is influenced not only by attentional systems and working memory, but by environmental demands, predictability, stress, reinforcement history, and contextual supports. Sensory processing is shaped by neurological sensitivity, but also by meaning, safety, novelty, and prior experiences. Social communication reflects information processing differences, but also cultural norms, reciprocal expectations, ambiguity, and relational learning. Even interoception, proprioception, and motor functioning emerge through dynamic interactions between biology, development, attention, behaviour, and context.

A contextual perspective also helps us think more carefully about neurotypicality. If all brains vary, then neurotypical cannot simply mean “having a normal brain.” Variation is universal. What is often considered neurotypical may instead reflect a contextual fit between a person’s patterns of functioning and prevailing social expectations around communication, attention, emotional regulation, sensory tolerance, and behaviour. This does not mean neurodiversity is merely socially constructed, biology remains real, but it does mean that disability, difference, and adaptation cannot be understood outside context.

This perspective aligns with broader critiques in philosophy of medicine, which caution against simplistic disease models when addressing complex human functioning (Engel, 1977; Kendler, 2005). It also resonates with process-based and idiographic approaches that emphasise understanding individuals in context rather than reducing them to static diagnostic categories (Hayes & Hofmann, 2020). Human beings are dynamic, non-linear, and deeply contextual systems. Description alone is not explanation.

Expanding what we mean by neuro does not weaken the neurodiversity perspective, it strengthens it. It allows us to move beyond narrow, deficit-focused models toward a more compassionate and scientifically sophisticated understanding of human variation, one that recognises biology, certainly, but also context, culture, relationships, development, and lived experience.

References

Engel, G. L. (1977). The need for a new medical model: A challenge for biomedicine. Science, 196(4286), 129–136. https://doi.org/10.1126/science.847460

Hayes, S. C., Barnes-Holmes, D., & Wilson, K. G. (2012). Contextual Behavioral Science.

Hayes, S. C., & Hofmann, S. G. (2020). Beyond the DSM: Toward a process-based alternative for diagnosis and mental health treatment.

Kendler, K. S. (2005). Toward a philosophical structure for psychiatry. American Journal of Psychiatry, 162(3), 433–440. https://doi.org/10.1176/appi.ajp.162.3.433

Varela, F. J., Thompson, E., & Rosch, E. (1991). The Embodied Mind.