MarcoD said:
Well, as someone who has recurring psychosis, which is an euphemism for schizophrenic, I can tell you that it has little to do with rationality.
I wasn't claiming that it did, rather the opposite. I half-agree with the original point of view. Yes, I can see this view; but also, we live in a SEA of irrationality, and I prize real, honest, rational thought. Weird conspiracy theories, alien abductions, bizarre "medical" interventions are all around.
We need our somewhat-crazy artists and creative people. Van Gogh was quite crazy of course. I think it's likely he had celiac disease (gluten intolerance), there are many things that suggest it.
Yes, it must be miserable to flip out over and over again. It happened to me once, it was a time when my buried self and huge buried feelings surfaced, and my visions and hallucinations were full of meaning. Doing this once was crucial, but making a career out of being a mental patient would have been horrible. I separated from my abusive family and managed to live independently and support myself, with help from a therapist. I think if I'd stayed around the abusers I could easily have ended up warehoused in a state mental hospital.
The original person mentioned having a lot of neural connections as an aspect of schizophrenia. Gluten, dairy and perhaps a few other foods had very intense effects on me, that all could be interpreted as having an excess of connections. Probably it wouldn't be the neurons physically being connected a lot, but rather having a lot of some neurotransmitter that increases transmission between neurons. The effects I mean are things like irritability; my emotions being expressed in my vision in a mildly hallucinatory way; feeling like my internal reality was so intense it took up all my attention; sound-sensitivity; anxiety; my past memories of abuse were very "loud" and dominated my experience; I felt compelled to pay attention to graphic images I'd see; being "dreamy"; being very emotionally sensitive.
I'm also very sensitive in the sense of having a lot of inhalant allergies. For years I was positive to pretty much the entire skin panels of allergists. And, I probably have a couple of autoimmune diseases: celiac disease and I know I have Hashimoto's, an autoimmune thyroid disease.
Researchers have investigated somewhat the effects of gluten on schizophrenia, for example
Novel Immune Response to Gluten in Individuals with Schizophrenia and http://www.its.caltech.edu/~phplab/pubs/10%20PHP%20BBR%20rev09.pdf. The immune system might be very important for some but not all people with schizophrenia.
One author I like a lot who's a successful crazy, is Whitley Strieber. His alien abduction stuff is very "psychological" and nutty; but he also seems to be very sensitive, and his sensitivity has driven him to write some very vivid books about nuclear war, child abduction and other traumatic things.