MedPage Today (8/3, DePeau-Wilson) reports, “Environmental risk factors may play a larger role than genetic factors in the development of psychotic experiences in adolescents,” investigators concluded. The study revealed that “among over 11,000 twin pairs, the relative contribution of genetic influences to cognitive disorganization was 47% in those with no exposure to environmental risk factors – such as bullying, dependent life events, cannabis use, tobacco use, or low birth weight – compared with 32% in those with these exposures.” The findings were published online Aug. 3 in JAMA Psychiatry.
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