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Structural and functional fractionation of right superior parietal cortex in bistable perception

机译:双稳态感知中右上顶皮质的结构和功能分级

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When faced with ambiguous sensory input, conscious awareness may alternate between the different percepts that are consistent with the input. Visual phenomena leading to such multistable perception, where constant sensory input evokes different conscious percepts, are particularly useful for investigating the processes underlying perceptual awareness [1]. Understanding the role that high-level brain regions outside early visual cortex play in perceptual alternations could elucidate how top-down processes modulate conscious perception [2]. In two studies [3,4] published recently in Current Biology, different combinations of the present authors used repetitive transcranial magnetic stimulation (rTMS) to disrupt activity in human superior parietal cortex, and reported seemingly contradictory results [5] concerning the effect of disrupting the normal function of this area on bistable perception. Here we join forces to resolve this discrepancy.
机译:当面对不明确的感觉输入时,意识意识可能会在与输入一致的不同感知之间交替。导致这种多稳态感知的视觉现象,不断的感官输入会唤起不同的意识感知,对于研究感知感知的过程特别有用[1]。了解早期视觉皮层之外的高级大脑区域在知觉交替中的作用可以阐明自上而下的过程如何调节意识感知[2]。在最近发表在《现代生物学》上的两项研究[3,4]中,不同作者的组合使用重复经颅磁刺激(rTMS)破坏人上顶皮层的活动,并报道了看似矛盾的结果[5]该区域在双稳态感知上的正常功能。在这里,我们携手解决这一差异。

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