creative people and mental illness

I came across an interesting section while I was in the library (where i currently am "working" on a paper) that showed the extensive amount of research done on the subject of creative people and mental illnesses/depression/suicide. (Now I know what you are thinking, but don't worry, I don't think that I am apart of this illustrious group of people.) Apparently researchers have looked into how the brains of creative people function differently from the rest of the population, which sometimes renders them unable to cope with things, etc. Perhaps it takes a certain level of insanity to produce creative works of ________. Or perhaps it is because creative people are hypersensitive to the critiques of their work? I should read about it and find out and report back.