Martin Elizabeth A, Karcher Nicole R, Bartholow Bruce D, Siegle Greg J, Kerns John G
Department of Psychology and Social Behavior, University of California, Irvine, 4201 Social and Behavioral Sciences Gateway, Irvine, CA 92697, United States.
Department of Psychological Sciences, University of Missouri, United States.
Biol Psychol. 2017 Mar;124:119-132. doi: 10.1016/j.biopsycho.2017.02.001. Epub 2017 Feb 5.
Both extreme levels of social anhedonia (SocAnh) and perceptual aberration/magical ideation (PerMag) are associated with risk for schizophrenia-spectrum disorders and with emotional abnormalities. Yet, the nature of any psychophysiological-measured affective abnormality, including the role of automatic/controlled processes, is unclear. We examined the late positive potential (LPP) during passive viewing (to assess automatic processing) and during cognitive reappraisal (to assess controlled processing) in three groups: SocAnh, PerMag, and controls. The SocAnh group exhibited an increased LPP when viewing negative images. Further, SocAnh exhibited greater reductions in the LPP for negative images when told to use strategies to alter negative emotion. Similar to SocAnh, PerMag exhibited an increased LPP when viewing negative images. However, PerMag also exhibited an increased LPP when viewing positive images as well as an atypical decreased LPP when increasing positive emotion. Overall, these results suggest that at-risk groups are associated with shared and unique automatic and controlled abnormalities.
社交快感缺乏（SocAnh）和感知偏差/奇幻思维（PerMag）的极端水平均与精神分裂症谱系障碍风险及情绪异常有关。然而，包括自动/控制过程作用在内的任何通过心理生理学测量的情感异常的本质尚不清楚。我们在三组人群中进行了研究，即社交快感缺乏组、感知偏差/奇幻思维组和对照组，观察他们在被动观看（以评估自动加工）和认知重评（以评估控制加工）过程中的晚期正电位（LPP）。社交快感缺乏组在观看负面图像时晚期正电位增强。此外，当被告知使用策略改变负面情绪时，社交快感缺乏组对负面图像的晚期正电位降低幅度更大。与社交快感缺乏组类似，感知偏差/奇幻思维组在观看负面图像时晚期正电位增强。然而，感知偏差/奇幻思维组在观看正面图像时晚期正电位也增强，并且在增强正面情绪时晚期正电位出现非典型降低。总体而言，这些结果表明，高危群体与共同的和独特的自动及控制异常有关。
