Are schizophrenics more religious? Do they have more daughters? Are autistics less religious? Do they have more sons?
Combined with recent evolutionary psychological theories, Crespi & Badcock’s (C&B’s) intragenomic conflict theory of the social brain suggests that schizophrenics are more religious, and autistics are less religious, than the normal population. Combined with the generalized Trivers-Willard hypothesis (gTWH), it suggests that schizophrenics have more daughters, and autistics have more sons, than expected.
Source: “Are schizophrenics more religious? Do they have more daughters?” from Behavioral and Brain Sciences (2008), 31: 272-273 Cambridge University Press
This study was done by Satoshi Kanazawa. His book Why Beautiful People Have More Daughters is quite thought-provoking.
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