http://bps-research-digest.blogspot....y-unusual.html

The idea that creative geniuses might not be entirely sane isn't exactly new. But just how much do creative types have in common with people suffering from psychosis? Well, according to Daniel Nettle at the University of Newcastle, serious poets and artists have just as many ‘unusual experiences’ as people diagnosed with schizophrenia. What saves them from the disabling effects of schizophrenia is that they don’t suffer from the lack of emotion and motivation – known as ‘introvertive anhedonia’ – also associated with the illness.

Nettle asked artists and poets, mental health patients and ‘non-creative’, healthy controls to fill out a questionnaire that’s designed to detect schizophrenic-like symptoms in healthy people. Participants seriously involved in poetry or art (as opposed to mere hobbyists, or non-creative controls) reported having just as many unusual experiences as did patients diagnosed with schizophrenia – that is they tended to answer yes to questions like “Do you think you could learn to read others’ minds if you wanted to?” or “Are the sounds you hear in your daydreams really clear and distinct?”. However, in contrast, they scored lower than both patients and healthy controls on measures of lack of emotion and motivation.