Examining associations between psychosis risk, social anhedonia, and performance of striatum-related behavioral tasks.

摘要: Both psychosis and anhedonia have been associated to some extent with striatal functioning. The current study examined whether either risk or social was performance on 3 tasks related Psychosis participants had extremely elevated Perceptual Aberration/Magical Ideation (PerMag) scores (n 69), 43% of also having semistructured interview-assessed psychotic-like experiences which further heightens their psychotic disorder (Chapman, Chapman, Kwapil, Eckblad, & Zinser, 1994). Compared both 60) control 68) groups, the PerMag group exhibited poorer 2 striatum-related tasks, Weather Prediction Task (WPT) Learned Irrelevance Paradigm, but not Finger Tapping. In addition, were especially impaired WPT. Overall, this arguably provides first evidence that is WPT, a task thought be strongly activation in associative striatum, suggests WPT might useful as behavioral measure risk. Previous research symptoms schizophrenia, anhedonia, are dysfunction part brain involved reinforcement learning. found risk, impairment tasks. people highest level particular type learning task, finding for understanding detecting