Top-down influences on visual processing

被引：681

作者：

Gilbert, Charles D. ^{[1
]}

Li, Wu ^{[2
]}

机构：

[1] Rockefeller Univ, New York, NY 10065 USA

[2] Beijing Normal Univ, State Key Lab Cognit Neurosci & Learning, Beijing 100875, Peoples R China

来源：

NATURE REVIEWS NEUROSCIENCE | 2013年 / 14卷 / 05期

基金：

中国国家自然科学基金; 美国国家卫生研究院;

关键词：

FRONTAL EYE FIELD; FEATURE-BASED ATTENTION; FIGURE-GROUND SEGREGATION; FEEDBACK CONNECTIONS; SELECTIVE ATTENTION; SPATIAL ATTENTION; AREAS V1; NEURAL MECHANISMS; NEURONAL SYNCHRONIZATION; CONTEXTUAL INTERACTIONS;

D O I：

10.1038/nrn3476

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Re-entrant or feedback pathways between cortical areas carry rich and varied information about behavioural context, including attention, expectation, perceptual tasks, working memory and motor commands. Neurons receiving such inputs effectively function as adaptive processors that are able to assume different functional states according to the task being executed. Recent data suggest that the selection of particular inputs, representing different components of an association field, enable neurons to take on different functional roles. In this Review, we discuss the various top-down influences exerted on the visual cortical pathways and highlight the dynamic nature of the receptive field, which allows neurons to carry information that is relevant to the current perceptual demands.

引用

下载

页码：350 / 363

页数：14

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