Top-down and bottom-up mechanisms in biasing competition in the human brain.

Top-down and bottom-up mechanisms in biasing competition in the human brain.
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DOI:
10.1016/j.visres.2008.07.012
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发表时间:
2009-06
期刊:
影响因子:
1.8
通讯作者:
Kastner, Sabine
Kastner, Sabine
中科院分区:
心理学3区
文献类型:
--
作者:
Beck, Diane M.;Kastner, Sabine

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选择性注意的偏见竞争理论一直是一种有影响力的注意力神经理论,激发了许多动物和人类对视觉注意力和视觉表征的研究。现在有神经证据支持其所有三个最基本的原则:视觉系统中的表征是竞争性的;自上而下和自下而上的偏见机制都会影响正在进行的竞争;而且这种竞争是跨大脑系统整合的。我们回顾了支持这三个原则的证据,特别是与从这些原始原则得出的六个更具体的神经预测相关的发现。
The biased competition theory of selective attention has been an influential neural theory of attention, motivating numerous animal and human studies of visual attention and visual representation. There is now neural evidence in favor of all three of its most basic principles: that representation in the visual system is competitive; that both top-down and bottom-up biasing mechanisms influence the ongoing competition; and that competition is integrated across brain systems. We review the evidence in favor of these three principles, and in particular, findings related to six more specific neural predictions derived from these original principles.
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