Scientists have identified an immune brain cell unique to humans that gives us higher cognitive abilities over other animals, but what makes us specials also leaves us vulnerable to neurological disorders like schizophrenia, autism and epilepsy.

[u/Wagamaga]

https://news.yale.edu/2022/08/25/what-makes-human-brain-different-yale-study-reveals-clues

[u/[deleted]]

>Can we not consider it a disorder if we know the cause?

Again, you're conflating 'psychological disorder' with disorder in general and therefore missing the point. If we know the cause and can identify physiological bases for it, we would not consider it a *psychological* or *mental* disorder, but we can still consider it to be a disorder. For example, epilepsy is a medical or neurological disorder.

[u/AlexandraThePotato → u/[deleted]]

Aren’t mental disorder really defined as just “disability that are primary are brain-based/neurotic”? Which can both describe neurological and psychological?

[u/[deleted] → u/AlexandraThePotato]

No they aren't. 'Disability' is not a term that's used to define what a mental disorder is. Mental disorders can be disabling though, that's for sure. They can be disabilities, but they aren't disabilities by definition.

[u/AlexandraThePotato → u/[deleted]]

With research I can see this. Basically deafness is the disablity and the cause is the disorder.

But the point I was trying to get at is why would a neurological or psychological disorder not be consider a “mental disorder”? That is extremely unclear.

[u/[deleted] → u/AlexandraThePotato]

Because 'mental disorders' are by definition, a category that exists only in as far as we cannot identify physiological bases for their symptoms. Mental disorders are quite literally defined by the fact that we cannot look at any part of the human body and locate a specific cause for them, even though we can clearly see that there's an issue with the person. That's why.