Doré Bruce P, Boccagno Chelsea, Burr Daisy, Hubbard Alexa, Long Kan, Weber Jochen, Stern Yaakov, Ochsner Kevin N
Columbia University.
New York University.
J Cogn Neurosci. 2017 Feb;29(2):235-244. doi: 10.1162/jocn_a_01041. Epub 2016 Sep 14.
Neuroimaging research has identified systems that facilitate minimizing negative emotion, but how the brain is able to transform the valence of an emotional response from negative to positive is unclear. Behavioral and psychophysiological studies suggest a distinction between minimizing reappraisal, which entails diminishing the arousal elicited by negative stimuli, and positive reappraisal, which instead changes the emotional valence of arousal from negative to positive. Here we show that successful minimizing reappraisal tracked with decreased activity in the amygdala, but successful positive reappraisal tracked with increased activity in regions involved in computing reward value, including the ventral striatum and ventromedial pFC (vmPFC). Moreover, positive reappraisal enhanced positive connectivity between vmPFC and amygdala, and individual differences in positive connectivity between vmPFC and amygdala, ventral striatum, dorsomedial pFC, and dorsolateral pFC predicted greater positive reappraisal success. These data broaden models of emotion regulation as quantitative dampening of negative emotion and identify activity in a network of brain valuation, arousal, and control regions as a neural basis for the ability to create positive meaning from negative experiences.
神经影像学研究已经确定了有助于将负面情绪降至最低的系统,但大脑如何能够将情绪反应的效价从负面转变为正面尚不清楚。行为和心理生理学研究表明,在最小化重新评估(即减少负面刺激引发的唤醒)和积极重新评估(即将唤醒的情绪效价从负面转变为正面)之间存在区别。在这里,我们表明,成功的最小化重新评估与杏仁核活动的减少相关,但成功的积极重新评估与参与计算奖励价值的区域(包括腹侧纹状体和腹内侧前额叶皮质(vmPFC))的活动增加相关。此外,积极重新评估增强了vmPFC与杏仁核之间的正向连接,并且vmPFC与杏仁核、腹侧纹状体、背内侧前额叶皮质和背外侧前额叶皮质之间正向连接的个体差异预示着更大的积极重新评估成功。这些数据拓宽了将情绪调节视为对负面情绪进行定量抑制的模型,并确定了大脑评估、唤醒和控制区域网络中的活动是从负面经历中创造积极意义能力的神经基础。