Processing of angry voices is modulated by visual load
Processing of angry voices is modulated by visual load
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DOI：
10.1016/j.neuroimage.2012.07.005
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发表时间：
2012-10-15
期刊：
影响因子：
5.7
通讯作者：
Straube, Thomas
中科院分区：
文献类型：
--
作者：
Mothes-Lasch, Martin;Miltner, Wolfgang H. R.;Straube, Thomas
视觉感知负荷已被证明可以调节大脑对情绪面部表情的激活。然而，目前还不清楚视知觉负荷是否也存在跨通道效应。目前的功能磁共振成像研究调查了大脑对愤怒和中性声音的反应，同时受试者必须解决一个简单或苛刻的视觉任务。虽然容易的视觉条件下，增加激活的右上级颞区愤怒与中性韵律，这种效果是不存在的要求任务。因此，我们的研究结果表明，跨通道的知觉负荷调节激活的情绪声音在听觉皮层和高视觉负荷防止增加处理的情绪韵律。(C)2012 Elsevier Inc. All rights reserved.
Visual perceptual load has been shown to modulate brain activation to emotional facial expressions. However, it is unknown whether cross-modal effects of visual perceptual load on brain activation to threat-related auditory stimuli also exist. The current fMRI study investigated brain responses to angry and neutral voices while subjects had to solve an easy or a demanding visual task. Although the easy visual condition was associated with increased activation in the right superior temporal region to angry vs. neutral prosody, this effect was absent during the demanding task. Thus, our results show that cross-modal perceptual load modulates the activation to emotional voices in the auditory cortex and that high visual load prevents the increased processing of emotional prosody. (C) 2012 Elsevier Inc. All rights reserved.