Distinct neuronal patterns of positive and negative moral processing in psychopathy
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- 作者：Samantha J. Fede ; Jana Schaich Borg…
- 关键词：Psychopathy ; Moral ; Prosocial ; Incarceration ; fMRI ; Decision making
- 刊名：Cognitive, Affective, & Behavioral Neuroscience
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：16
- 期：6
- 页码：1074-1085
- 全文大小：854KB
- 刊物主题：Cognitive Psychology; Neurosciences;
- 出版者：Springer US
- ISSN：1531-135X
- 卷排序：16
文摘
Psychopathy is a disorder characterized by severe and frequent moral violations in multiple domains of life. Numerous studies have shown psychopathy-related limbic brain abnormalities during moral processing; however, these studies only examined negatively valenced moral stimuli. Here, we aimed to replicate prior psychopathy research on negative moral judgments and to extend this work by examining psychopathy-related abnormalities in the processing of controversial moral stimuli and positive moral processing. Incarcerated adult males (N = 245) completed a functional magnetic resonance imaging protocol on a mobile imaging system stationed at the prison. Psychopathy was assessed using the Hare Psychopathy Checklist–Revised (PCL-R). Participants were then shown words describing three types of moral stimuli: wrong (e.g., stealing), not wrong (e.g., charity), and controversial (e.g., euthanasia). Participants rated each stimulus as either wrong or not wrong. PCL-R total scores were correlated with not wrong behavioral responses to wrong moral stimuli, and were inversely related to hemodynamic activity in the anterior cingulate cortex in the contrast of wrong > not wrong. In the controversial > noncontroversial comparison, psychopathy was inversely associated with activity in the temporal parietal junction and dorsolateral prefrontal cortex. These results indicate that psychopathy-related abnormalities are observed during the processing of complex, negative, and positive moral stimuli.