Buhle Jason T, Silvers Jennifer A, Wager Tor D, Lopez Richard, Onyemekwu Chukwudi, Kober Hedy, Weber Jochen, Ochsner Kevin N
Department of Psychology, Columbia University, New York, NY, USA.
Department of Psychology and Neuroscience, University of Colorado, Boulder, CO, USA.
Cereb Cortex. 2014 Nov;24(11):2981-90. doi: 10.1093/cercor/bht154. Epub 2013 Jun 13.
In recent years, an explosion of neuroimaging studies has examined cognitive reappraisal, an emotion regulation strategy that involves changing the way one thinks about a stimulus in order to change its affective impact. Existing models broadly agree that reappraisal recruits frontal and parietal control regions to modulate emotional responding in the amygdala, but they offer competing visions of how this is accomplished. One view holds that control regions engage ventromedial prefrontal cortex (vmPFC), an area associated with fear extinction, that in turn modulates amygdala responses. An alternative view is that control regions modulate semantic representations in lateral temporal cortex that indirectly influence emotion-related responses in the amygdala. Furthermore, while previous work has emphasized the amygdala, whether reappraisal influences other regions implicated in emotional responding remains unknown. To resolve these questions, we performed a meta-analysis of 48 neuroimaging studies of reappraisal, most involving downregulation of negative affect. Reappraisal consistently 1) activated cognitive control regions and lateral temporal cortex, but not vmPFC, and 2) modulated the bilateral amygdala, but no other brain regions. This suggests that reappraisal involves the use of cognitive control to modulate semantic representations of an emotional stimulus, and these altered representations in turn attenuate activity in the amygdala.
近年来,大量神经影像学研究对认知重评进行了探究,认知重评是一种情绪调节策略,涉及改变个体对刺激的思考方式,以改变其情感影响。现有模型大致认为,重评会调动额叶和顶叶控制区域来调节杏仁核的情绪反应,但它们对实现这一过程的方式存在不同观点。一种观点认为,控制区域会激活腹内侧前额叶皮层(vmPFC),该区域与恐惧消退相关,进而调节杏仁核的反应。另一种观点则认为,控制区域会调节外侧颞叶皮层中的语义表征,从而间接影响杏仁核中与情绪相关的反应。此外,尽管先前的研究强调了杏仁核,但重评是否会影响其他与情绪反应相关的区域仍不清楚。为了解决这些问题,我们对48项关于重评的神经影像学研究进行了荟萃分析,其中大多数研究涉及下调负面情绪。重评始终 1)激活了认知控制区域和外侧颞叶皮层,但未激活vmPFC,以及 2)调节了双侧杏仁核,但未调节其他脑区。这表明重评涉及利用认知控制来调节情绪刺激的语义表征,而这些改变的表征反过来会减弱杏仁核的活动。