Striate cortex (V1) activity gates awareness of motion
Striate cortex (V1) activity gates awareness of motion
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DOI：
10.1038/nn1379
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发表时间：
2005-02-01
影响因子：
25
通讯作者：
Walsh, V
中科院分区：
文献类型：
--
作者：
Silvanto, J;Cowey, A;Walsh, V
理解视觉意识的一个关键问题是是否有任何一个皮层区域是不可或缺的。在经颅磁刺激实验中，我们表明观察者对纹状体外区域 V5 活动的感知取决于纹状皮层 (V1) 的活动量。从效果的时间和模式，我们推断来自纹外皮层的反投影会影响 V1 中的信息内容，但正是 V1 决定了该信息是否达到意识。
A key question in understanding visual awareness is whether any single cortical area is indispensable. In a transcranial magnetic stimulation experiment, we show that observers' awareness of activity in extrastriate area V5 depends on the amount of activity in striate cortex (V1). From the timing and pattern of effects, we infer that back-projections from extrastriate cortex influence information content in V1, but it is V1 that determines whether that information reaches awareness.