Why Sapolsky’s Take on Schizotypal Personality Disorder and Religion is Problematic

Millicent and Carla Fran

Dear CF,

BoingBoing posted one of Robert Sapolsky’s (Stanford neurobiologist and author of Monkeyluv, The Trouble with Testosterone and Why Zebras Don’t Get Ulcers) lectures on schizophrenia and schizotypal personality disorder today. It’s an hour long, but makes for pretty interesting listening if you have the time to give it. In this installment he starts off speculating about the possible selective evolutionary advantages of schizophrenia, which—unlike cystic fibrosis and sickle-cell anemia, which protect heterozygotes (carriers, usually with one good copy of the gene) from cholera and malaria, respectively—hasn’t been thought to confer any kind of selective advantage.

He suggests an advantage exists, and that it lies in schizotypal personality disorder—sufferers who display milder schizophrenic symptoms and are labeled “half-crazy.” A group of scientists studying adoptive and biological schizophrenics in Denmark discovered, after interviewing all the parties concerned over a period of (I think ten years) that many relatives…

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