Can being born blind protect people from schizophrenia?

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A study carried out by The University of Western Australia has provided compelling evidence that congenital/early cortical blindness – that is when people are blind from birth or shortly after—is protective against schizophrenia.

This is an extremely misleading article. This study is a direct replication of previous studies that have reached the exact same conclusion. AFAIK, the difference here is only a bigger and presumably more representative sample.

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I think I’d rather be schizophrenic than blind, even though I think people would rather date a blind person

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My mother was blind. She was also batshit crazy, just not the SZ variety. I think being something like 4’11" and cute as a button was the deciding factor for the guys she (frequently) hooked up with. She honestly looked about 15 or 16 when she died at age 43 because she never wore makeup and didn’t wrinkle the hell out of her skin as a result.

She sounds like a character. From your previous posts not the best character though

She was definitely a lot farther along the spectrum than me. You know those people who are so smart that it comes at the cost of social functioning? That was her.

I’ve had my fair share of people like that in my life. Too smart for their own good

I wonder why blindness is protective. I remember we used to have a deaf girl on here who still had auditory hallucinations. @anon9798425 do you know what the difference might be?

Wow, that is hell. :pensive:

Only congenital and early (i.e. first years of life) cortical blindness (i.e. blindness that is due to abnormal brain development) seems to fully protect against schizophrenia (and IIRC psychosis). Later blindness and non-cortical blindness does not protect against sz. This means the most probable explanation is that neural reorganization of the occipital lobe (visual areas), where these areas are used for other functions and which is much more effective in the first years of life, protects against sz and psychosis. Which again most likely implies that sz and psychosis is related to either a malfunction in the otherwise functional occipital lobe, which is erased following early/congenital cortical blindness, or a malfunction in nearby areas that is due to limited space - space which is provided for these areas following early/congenital cortical blindness.

One theory is that the evolutionary pressure on language areas (which are right next to the visual areas) has been so great that psychotic illnesses such as schizophrenia developed in humans as a result. When evolutionary pressures on a set of specific adaptations such as language are great, this leads to quicker evolutionary development of these adaptations coupled with a greater accumulation of maladaptive traits. These traits could be the cause of schizophrenia, and it makes sense that they are related to language areas because language is one of our main modes of thought and reasoning, and problems with cognition seem to be the most pathognomonic part of schizophrenia.

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You must be highly educated?