It has to be in the brain right? Since we are our brains. Sure, it isn't a stretch, but I feel also that there are so many variables and mediators/moderators both in genetics and experience that would have effects on the connection creativity-mental illness.

The main issues for me are a) it is generalised, and b) the correlation is often confused with causation.

Thank you for the link! I do love to read about psych stuff (fortunately/unfortunately been in psych for a long time academically)