Top-down control of visual attention.

Top-down control of visual attention.
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DOI:
10.1016/j.conb.2010.02.003
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发表时间:
2010-04
影响因子:
5.7
通讯作者:
Moore, Tirin
Moore, Tirin
中科院分区:
医学2区
文献类型:
--
作者:
Noudoost, Behrad;Chang, Mindy H.;Steinmetz, Nicholas A.;Moore, Tirin

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自上而下的视觉注意改善了对所选刺激的感知,这种改善反映在整个视觉系统的许多阶段的神经活动中。最近关于自上而下注意力的研究已经详细阐述了其在视觉皮层中的影响特征,并开始确定其因果关系。来自这些研究的证据表明,视觉系统内神经元所表现出的空间注意力的相关性起源于涉及扫视眼球运动编程的分布式结构网络。我们总结了这些证据,并讨论了它与空间工作记忆的神经机制的关系。
Top-down visual attention improves perception of selected stimuli and that improvement is reflected in the neural activity at many stages throughout the visual system. Recent studies of top-down attention have elaborated on the signatures of its effects within visual cortex and have begun identifying its causal basis. Evidence from these studies suggests that the correlates of spatial attention exhibited by neurons within the visual system originate from a distributed network of structures involved in the programming of saccadic eye movements. We summarize this evidence and discuss its relationship to the neural mechanisms of spatial working memory.
早期视觉皮层中额叶信号的自下而上的门控。
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