The Neurotypical

The neurotypical is Norma’s cousin. They occupy the same statistical location—the centre of the distribution, the modal point around which the population is assumed to cluster, the implicit standard against which variation is measured and found to be variation. Norma is the ideal body. The neurotypical is the ideal brain.

Neither exists with the consistency the concept requires, and neither has ever been rigorously defined in terms of positive characteristics rather than as the absence of the things that make the neurodivergent diverge. The neurotypical is what you are when you do not have the conditions listed under neurodivergent. It is a category defined by exclusion, pointing to a centre that is, as with all statistical centres, a mathematical location rather than a human one.

The concept of neurodivergence is interesting partly for what it reveals about the concept it was coined to challenge. Judy Singer introduced the term in the late 1990s to reframe conditions that the medical system had been categorising as disorders—as deficits from a functioning standard that required correction—into natural variations in neurological organisation. The reframing was deliberate and useful. It shifted the frame from broken to different, from deficit to variation, from the question of what is wrong with this brain to the question of what this brain does and how the environment has been organised around a different kind of brain.

But the reframing inherits, in its structure, the concept it is reframing. To say that some brains are neurodivergent is to say that they diverge from a norm. The norm is the neurotypical. The neurotypical is Norma. And Norma, as established, does not exist.

 

The standard or typical rate of development that neurotypical refers to is derived from the same population data problem that produces Norm and Norma in the clinical context. Developmental milestones are established by observing large populations of children and identifying the ages at which various capacities typically emerge. The milestone is the average, or the median, or the point at which a defined proportion of the population has achieved the capacity. It is a population statistic presented as a developmental expectation. The child who is walking at fourteen months is at the average. The child who is walking at eleven months is ahead of the average. The child who is walking at eighteen months is behind the average.

None of these children is neurotypical or neurodivergent on the basis of this single data point. The child who walks at eighteen months may talk at nine months. The child who walks at eleven months may struggle with fine motor tasks at five years. The distribution of capacities across the developmental spectrum in any individual child does not follow the distribution of capacities across the population from which the averages were derived, because the individual is not the population and the population statistic does not predict the individual.

The application of neurotypical as a descriptor—meaning the person whose brain functions and social skills develop at the standard or typical rate for their age—requires that the standard or typical rate be a meaningful description of an individual’s development rather than a population tendency. It is a population tendency. The neurotypical is a composite of population tendencies that does not appear in any individual in the form the composite implies.

 

Neurodivergent as an umbrella term performs a different function from neurodivergent as a clinical category, and the difference matters. As an umbrella term it gathers together people whose neurological variation has been found, in specific environmental contexts, to produce challenges that the environment was not designed to accommodate.

Autism, ADHD, dyslexia, dyspraxia, dyscalculia, OCD, Tourette syndrome—these are not the same condition. They have different neurological substrates, different presentations, different relationships to the environments that produce difficulty, and different relationships to the capacities that may be exceptional rather than impaired.

What they share, within the umbrella, is that they deviate from the neurotypical standard in ways that the systems designed around the neurotypical standard—the school, the workplace, the social environment, the healthcare system—have not primarily been designed to accommodate.

The umbrella is useful for advocacy. The person who identifies as neurodivergent has a term that connects them to a community of people navigating similar challenges within similarly inhospitable systems. The term allows them to advocate for accommodations—the noise-cancelling headphones, the flexible schedule, the alternative assessment format—without requiring them to enumerate every specific characteristic of their neurological variation in every context where the accommodation is needed. The umbrella is a social and political tool. Its utility is real.

The umbrella also creates its own Norm and Norma problem at a smaller scale. Within neurodivergent, the conditions are various enough that the experience of one person navigating ADHD and the experience of another person navigating autism may share very little in practical terms. The accommodation that helps one person is irrelevant or actively unhelpful to another. The strength profile that accompanies one condition—the hyperfocus, the pattern recognition, the exceptional memory—is not transferable to another. The umbrella holds together people who share a location relative to the neurotypical standard without sharing the specific characteristics that the location reflects.

The risk is the same risk that Norm and Norma produce at the population level. The umbrella produces an expectation of the neurodivergent person that is an average of the variations it contains, and the average neurodivergent person is as fictional as Norma, and the real person navigating a specific neurological variation in a specific body with specific circumstances receives a response calibrated to the average rather than to the specific.

 

The school is the most consistent environment for the production of neurotypical as a functional standard. The school was designed for a particular model of learner—one who sits still for defined periods, attends to a single task directed by an external authority, transitions between subjects at the sound of a bell, reads and writes in the ways that the literacy curriculum specifies, processes verbal instruction reliably, and manages the social complexity of thirty-person group settings without significant difficulty. These are the characteristics that the school environment rewards and the characteristics whose absence the school environment identifies as requiring intervention.

The child who does not sit still is not attending. The child who does not transition readily between subjects is being disruptive. The child who reads differently from the way the literacy curriculum specifies is reading incorrectly. The child who processes verbal instruction differently is not listening. The child who struggles with the social complexity of the classroom is having difficulties. The assessment that follows from each of these observations is an assessment of the child’s deviation from the neurotypical standard that the school environment embeds in its design. The deviation is named as the child’s problem. The environment that produced the deviation is not the subject of the assessment.

This is the design asymmetry that the neurodivergent framework is attempting to name. The world is often designed for neurotypical standards, which can make social cues, sensory-heavy environments, and traditional learning difficult. The statement is correct. What it is describing is that the environment was built for Norma’s brain, and the person whose brain is different from Norma’s is experiencing the consequences of living in an environment designed for someone else.

The accommodation—the noise-cancelling headphones, the flexible schedule, the alternative assessment format—is the recognition that the environment was designed for a specific brain type and that the person with a different brain type can function in the environment if the environment is modified to reduce the mismatch. The accommodation is useful. The accommodation is also a partial response to a structural problem. The accommodation modifies the environment for the specific person while leaving the environment’s underlying design unchanged. The environment remains calibrated for the neurotypical. The neurodivergent person navigates the modified version of an environment that was not designed for them.

 

The question that the neurodivergent framework raises but does not fully resolve is the question of what the neurotypical environment actually optimises for. If the school is designed for the neurotypical learner, the school is designed for a learner who does not exist in the form the design assumes. The thirty children in the classroom are not neurotypical in the sense of being the ideal brain in its standard developmental form. They are thirty individual brains, each with its own variation, its own strengths, its own challenges, its own relationship to the tasks the school is setting. Some of those variations have been named and categorised. Most have not. The children who have not been assessed against the neurodivergent category are not neurotypical. They are unassessed.

The neurotypical classroom is a classroom of unassessed variation, some of which happens to align well with the environment the classroom provides and some of which does not, with the alignment and misalignment distributed in ways that do not map cleanly onto the assessed and unassessed categories. The child who finds the classroom easy is not necessarily neurotypical. They are a child whose variation happens to match the classroom’s design. The child who finds the classroom difficult is not necessarily neurodivergent. They are a child whose variation does not match the classroom’s design as well.

The classroom was designed for Norma’s brain. Norma’s brain is not in the classroom. All the other brains are managing.

 

What the neurodivergent framework has done, which is genuinely valuable, is make visible the assumption that was invisible. The assumption that there is a standard way for a brain to work—a neurotypical baseline from which variation is measured, around which systems are designed, toward which people are encouraged to aspire—was operative before it was named. The framework named it. The naming made it available for examination.

The examination reveals the same structure that Norm and Norma reveal in the clinical context. The standard is a statistical abstraction. The abstraction was converted into a design principle. The design principle was embedded in the school, the workplace, the social environment, the healthcare system. The people who do not fit the design principle are identified as diverging from it. The divergence is the individual’s characteristic. The design principle is not the subject of equivalent scrutiny.

The neurotypical is not a person.

It is a design assumption.

The design assumption is not Norma.

But it was made in her image.

And most people in the room are working around both of them.