Affective picture perception: gender differences in visual cortex?
Affective picture perception: gender differences in visual cortex?
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DOI：
10.1097/00001756-200405190-00005
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发表时间：
2004-05-19
期刊：
影响因子：
1.7
通讯作者：
Lang, PJ
中科院分区：
文献类型：
--
作者：
Sabatinelli, D;Flaisch, T;Lang, PJ
相对于中性图片，当人们观看情绪性图片时，纹外区视觉皮质的活动更大。先前的大脑成像和心理生理学研究进一步表明，男性对愉快的图片反应更强烈，而女性对不愉快的图片反应更强烈。在这里，我们使用功能磁共振成像研究了28名男性和女性在观看图片时的视觉皮质活动。无论是愉快的图片还是不愉快的图片，男性和女性都表现出了可靠的更高的视觉皮质反应性，相对于中性的，这与视觉刺激的动机相关性引导注意力并增强精细知觉加工的观点一致。然而，男性确实比女性表现出更大的纹状体外活动，特别是在色情图片感知方面，这可能反映了性别特定的视觉机制对性选择的影响。
Activity in extrastriate visual cortex is greater when people view emotional relative to neutral pictures. Prior brain imaging and psychophysiological work has further suggested a bias for men to react more strongly to pleasant pictures, and for women to react more strongly to unpleasant pictures. Here we investigated visual cortical activity using fMRI in 28 men and women during picture viewing. Men and women showed reliably greater visual cortical reactivity during both pleasant and unpleasant pictures, relative to neutral, consistent with the view that the motivational relevance of visual stimuli directs attention and enhances elaborative perceptual processing. However, men did show greater extrastriate activity than women specifically during erotic picture perception, possibly reflecting a gender-specific visual mechanism for sexual selection.