Multisensory integration for timing engages different brain networks
Multisensory integration for timing engages different brain networks
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DOI：
10.1016/j.neuroimage.2006.07.044
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发表时间：
2007-01-15
期刊：
影响因子：
5.7
通讯作者：
Kelso, J. A. Scott
中科院分区：
文献类型：
--
作者：
Dhamala, Mukeshwar;Assisi, Collins G.;Kelso, J. A. Scott
大脑如何将不同感官的信息整合到单一的感知中？哪些因素会影响这种多感觉整合？使用节奏的行为范式和功能性磁共振成像，我们确定了大脑区域网络的物理同步和异步听觉事件的感知。行为绩效的度量揭示了存在三种不同的感知状态。异步的感知激活了主要感觉，前额叶和下顶皮层的网络，Synebrony的感知使下壁皮层脱离了下壁皮层，并进一步招募了上层胶囊，并且没有明确的感知，只有在前后和感觉的残留区域组成的残余区域时区域活跃。这些结果表明，在特定的大脑子网络中出现了不同的感知，其组成部分根据环境信号的时间而定，并脱离了接合。 （c）2006 Elsevier Inc.保留所有权利。
How does the brain integrate information from different senses into a unitary percept? What factors influence such multisensory integration? Using a rhythmic behavioral paradigm and functional magnetic resonance imaging, we identified networks of brain regions for perceptions of physically synchronous and asynchronous auditory-visual events. Measures of behavioral performance revealed the existence of three distinct perceptual states. Perception of asynchrony activated a network of the primary sensory, prefrontal, and inferior parietal cortices, perception of synebrony disengaged the inferior parietal cortex and further recruited the superior colliculus, and when no clear percept was established, only the residual areas comprised of prefrontal and sensory areas were active. These results indicate that distinct percepts arise within specific brain sub-networks, the components of which are differentially engaged and disengaged depending on the timing of environmental signals. (c) 2006 Elsevier Inc. All rights reserved.