Attentional routes to conscious perception.

Attentional routes to conscious perception.
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DOI:
10.3389/fpsyg.2012.00001
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发表时间:
2012
影响因子:
3.8
通讯作者:
Bartolomeo P
Bartolomeo P
中科院分区:
心理学3区
文献类型:
--
作者:
Chica AB;Bartolomeo P

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空间注意和意识知觉之间的关系目前是激烈争论的对象。最近有证据表明,注意力和意识之间存在双重分离,这让人们对注意力作为通往意识的门户这一由来已久的概念产生了怀疑。在这里,我们回顾了来自行为、神经生理学、神经心理学和神经成像实验的证据,表明不同种类的空间注意可以对视觉意识知觉产生不同的影响。虽然内源性注意或自上而下注意对随后的近阈值刺激的有意识知觉影响较小,但外源性或自下而上形式的空间注意似乎是发展可报告视觉体验的必要步骤,尽管不是充分的步骤。额顶网络对空间注意很重要,具有独特的半球间差异,构成了外源性空间注意和意识知觉之间相互作用的合理神经基础。
The relationships between spatial attention and conscious perception are currently the object of intense debate. Recent evidence of double dissociations between attention and consciousness cast doubt on the time-honored concept of attention as a gateway to consciousness. Here we review evidence from behavioral, neurophysiologic, neuropsychological, and neuroimaging experiments, showing that distinct sorts of spatial attention can have different effects on visual conscious perception. While endogenous, or top-down attention, has weak influence on subsequent conscious perception of near-threshold stimuli, exogenous, or bottom-up forms of spatial attention appear instead to be a necessary, although not sufficient, step in the development of reportable visual experiences. Fronto-parietal networks important for spatial attention, with peculiar inter-hemispheric differences, constitute plausible neural substrates for the interactions between exogenous spatial attention and conscious perception.
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