The timing of emotional discrimination in human amygdala and ventral visual cortex.
The timing of emotional discrimination in human amygdala and ventral visual cortex.
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DOI：
10.1523/jneurosci.3278-09.2009
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发表时间：
2009-11-25
期刊：
影响因子：
--
通讯作者：
Keil A
中科院分区：
文献类型：
--
作者：
Sabatinelli D;Lang PJ;Bradley MM;Costa VD;Keil A
视觉情绪感知的模型表明腹侧视觉系统与杏仁核的折返组织。使用集中的功能磁共振成像在人类的采样率为100毫秒，在这里，我们确定的相对时间的情绪歧视杏仁核和腹侧视觉皮层结构在情绪感知。结果表明，杏仁核和下颞叶视觉皮层区分情绪与非情绪场景前约1秒的纹外枕叶皮层，而初级枕叶皮层显示一致的活动，在所有的场景。这种模式的歧视是一致的，在视觉处理的情绪感知的折返组织，在吻腹侧视皮层和杏仁核之间的交易起源于识别的情绪相关性。
Models of visual emotional perception suggest a reentrant organization of the ventral visual system with the amygdala. Using focused functional magnetic resonance imaging in humans with a sampling rate of 100 ms, here we determine the relative timing of emotional discrimination in amygdala and ventral visual cortical structures during emotional perception. Results show that amygdala and inferotemporal visual cortex differentiate emotional from nonemotional scenes approximately 1 s prior to extrastriate occipital cortex, while primary occipital cortex shows consistent activity across all scenes. This pattern of discrimination is consistent with a reentrant organization of emotional perception in visual processing, where transaction between rostral ventral visual cortex and amygdala originates the identification of emotional relevance.