Neuro- is a combining form that means nerve, nerves, and nervous system. It does not mean brain, though the nervous system includes the brain. So when I talk about neurodiversity, I am not reducing folks and their experiences, identities, or labels to their brains, and I am not situated inside any kind of bioessentialism or biomedical framework. We are biological organisms. Everything that happens to us is biological. Our biological experiences are largely informed by our nervous systems. Our nervous systems are—both acutely and chronically, and both idiopathically and collectively—affected by everything around us, including our experiences, our abuses and traumas, the ways in which we are marginalized and oppressed, and more. Saying something is neuro-, including using terms like neurodiverse within the framework of neurodiversity, is not saying this, that, or the other thing starts and ends in the body. It is not the equivalent of denying or discounting the larger systems, functional and otherwise, in which we as biological beings exist or the forces those systems exert on our lives.

Image: A graphic depicting the human nervous system, including the parasympathetic nerves and the sympathetic nerves. The functions of the former include constricting pupils, stimulating saliva, constricting airways, slowing heart rate, stimulating stomach activity, inhibiting the release of glucose, stimulating the gallbladder, stimulating the intestines, contracting the bladder, and promoting the erection of genitals. The functions of the latter include dilating pupils, inhibiting salivation, relaxing airways, increasing heart rate, inhibiting stomach activity, stimulating the release of glucose, inhibiting the gallbladder, secreting epinephrine and norepinephrine, relaxing the bladder, and promoting ejaculation and vaginal contractions.

Image source: News Medical.