The amygdala response to images with impact

被引：72

作者：

Ewbank, Michael P. ^{[1
]}

Barnard, Philip J. ^{[1
]}

Croucher, Camilla J. ^{[2
]}

Ramponi, Cristina ^{[1
]}

Calder, Andrew J. ^{[1
]}

机构：

[1] MRC, Cognit & Brain Sci Unit, Cambridge CB2 7EF, England

[2] City Univ London, Dept Psychol, London EC1V 0HB, England

来源：

SOCIAL COGNITIVE AND AFFECTIVE NEUROSCIENCE | 2009年 / 4卷 / 02期

基金：

英国医学研究理事会;

关键词：

Emotion; Arousal; Attention; Appraisal; fMRI; FACIAL EXPRESSIONS; NEURAL MECHANISMS; INTENSITY; ATTENTION; DISSOCIATION; ACTIVATION; EXPERIENCE; PICTURES; PLEASURE; AROUSAL;

D O I：

10.1093/scan/nsn048

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Effective photojournalism provokes an emotional reaction and leaves a lasting impression upon the viewer. Striking and memorable images are often said to possess impact. Within cognitive neuroscience memorable emotional images evoke a greater amygdala response. Research to date has focused on arousal as a causative factor, while the contribution of appraisal dimensions relating to salience of an item, goal relevance, or impact are yet to be addressed. We explored how differences in ratings of impact influenced amygdala activity to negative emotional images matched for valence, arousal and other factors. Increased amygdala activation was found to high impact when compared to neutral images, or high impact when compared to low impact images (matched for arousal). Our findings demonstrate that the amygdala response to emotional stimuli is not a function of arousal (or valence) alone and accord more with the proposal that the amygdala responds to the significance or relevance of an event.

引用

页码：127 / 133

页数：7

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