Internal valence modulates the speed of object recognition.
Internal valence modulates the speed of object recognition.
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DOI：
10.1038/s41598-017-00385-4
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发表时间：
2017-03-23
影响因子：
4.6
通讯作者：
Barrett LF
中科院分区：
文献类型：
--
作者：
Panichello MF;Kveraga K;Chaumon M;Bar M;Barrett LF
处理情感的大脑区域与视觉区域密切相关，但这种结构组织的功能后果一直相对未被探索。观察者的瞬间影响是如何影响感知的？我们在参与者中诱导愉快或不愉快的情绪，然后在他们完成物体识别任务时使用脑磁图记录他们的神经活动。我们假设并发现，情感通过调节枕颞皮层和重要的情感表征区域的诱发反应的速度和幅度来影响物体识别的速度。此外，在知觉加工的早期，情感调节了情感和知觉区域之间的功能相互作用。这些发现表明，情感可以作为一个重要的上下文影响对象识别过程。
Brain regions that process affect are strongly connected with visual regions, but the functional consequences of this structural organization have been relatively unexplored. How does the momentary affect of an observer influence perception? We induced either pleasant or unpleasant affect in participants and then recorded their neural activity using magnetoencephalography while they completed an object recognition task. We hypothesized, and found, that affect influenced the speed of object recognition by modulating the speed and amplitude of evoked responses in occipitotemporal cortex and regions important for representing affect. Furthermore, affect modulated functional interactions between affective and perceptual regions early during perceptual processing. These findings indicate that affect can serve as an important contextual influence on object recognition processes.