Title |
Visuo-auditory interactions in the primary visual cortex of the behaving monkey: Electrophysiological evidence
|
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Published in |
BMC Neuroscience, August 2008
|
DOI | 10.1186/1471-2202-9-79 |
Pubmed ID | |
Authors |
Ye Wang, Simona Celebrini, Yves Trotter, Pascal Barone |
Abstract |
Visual, tactile and auditory information is processed from the periphery to the cortical level through separate channels that target primary sensory cortices, from which it is further distributed to functionally specialized areas. Multisensory integration is classically assigned to higher hierarchical cortical areas, but there is growing electrophysiological evidence in man and monkey of multimodal interactions in areas thought to be unimodal, interactions that can occur at very short latencies. Such fast timing of multisensory interactions rules out the possibility of an origin in the polymodal areas mediated through back projections, but is rather in favor of heteromodal connections such as the direct projections observed in the monkey, from auditory areas (including the primary auditory cortex AI) directly to the primary visual cortex V1. Based on the existence of such AI to V1 projections, we looked for modulation of neuronal visual responses in V1 by an auditory stimulus in the awake behaving monkey. |
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