Modulation of Oscillatory Neuronal Synchronization by Selective Visual Attention-Reference-Cited by-同舟云学术

Modulation of Oscillatory Neuronal Synchronization by Selective Visual Attention

Published:2001-02-23 Issue:5508 Volume:291 Page:1560-1563
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Fries Pascal¹,Reynolds John H.¹²,Rorie Alan E.¹,Desimone Robert¹

Affiliation:

1. Laboratory of Neuropsychology, National Institute of Mental Health, National Institutes of Health, Building 49, Room 1B80, 9000 Rockville Pike, Bethesda, MD 20892–4415, USA.

2. Systems Neurobiology Laboratory, The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037–1099, USA.

Abstract

In crowded visual scenes, attention is needed to select relevant stimuli. To study the underlying mechanisms, we recorded neurons in cortical area V4 while macaque monkeys attended to behaviorally relevant stimuli and ignored distracters. Neurons activated by the attended stimulus showed increased gamma-frequency (35 to 90 hertz) synchronization but reduced low-frequency (<17 hertz) synchronization compared with neurons at nearby V4 sites activated by distracters. Because postsynaptic integration times are short, these localized changes in synchronization may serve to amplify behaviorally relevant signals in the cortex.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference43 articles.

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