Modulation of oscillatory neuronal synchronization by selective visual attention

被引：2003
作者：
Fries, P
Reynolds, JH
Rorie, AE
Desimone, R
机构：
[1] NIMH, Neuropsychol Lab, NIH, Bethesda, MD 20892 USA
[2] Salk Inst Biol Studies, Syst Neurobiol Lab, La Jolla, CA 92037 USA
来源：
SCIENCE | 2001年 / 291卷 / 5508期
关键词：
D O I：
10.1126/science.1055465
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
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.
引用
收藏
页码：1560 / 1563
页数：4
相关论文
共 34 条
[1]   Estimates of the net excitatory currents evoked by visual stimulation of identified neurons in cat visual cortex [J].
Ahmed, B ;
Anderson, JC ;
Douglas, RJ ;
Martin, KAC ;
Whitteridge, D .
CEREBRAL CORTEX, 1998, 8 (05) :462-476
[2]   Precisely correlated firing in cells of the lateral geniculate nucleus [J].
Alonso, JM ;
Usrey, WM ;
Reid, RC .
NATURE, 1996, 383 (6603) :815-819
[3]   ENCODING OF SPATIAL LOCATION BY POSTERIOR PARIETAL NEURONS [J].
ANDERSEN, RA ;
ESSICK, GK ;
SIEGEL, RM .
SCIENCE, 1985, 230 (4724) :456-458
[4]   Dynamic spike threshold reveals a mechanism for synaptic coincidence detection in cortical neurons in vivo [J].
Azouz, R ;
Gray, CM .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2000, 97 (14) :8110-8115
[5]   Cholinergic activation and tonic excitation induce persistent gamma oscillations in mouse somatosensory cortex in vitro [J].
Buhl, EH ;
Tamás, G ;
Fisahn, A .
JOURNAL OF PHYSIOLOGY-LONDON, 1998, 513 (01) :117-126
[6]   A NEURAL BASIS FOR VISUAL-SEARCH IN INFERIOR TEMPORAL CORTEX [J].
CHELAZZI, L ;
MILLER, EK ;
DUNCAN, J ;
DESIMONE, R .
NATURE, 1993, 363 (6427) :345-347
[7]   Responses in area V4 depend on the spatial relationship between stimulus and attention [J].
Connor, CE ;
Gallant, JL ;
Preddie, DC ;
VanEssen, DC .
JOURNAL OF NEUROPHYSIOLOGY, 1996, 75 (03) :1306-1308
[8]  
Crick F., 1990, Seminars in the Neurosciences, V2, P263
[9]   Neural Mechanisms of Selective Visual Attention [J].
Moore, Tirin ;
Zirnsak, Marc .
ANNUAL REVIEW OF PSYCHOLOGY, VOL 68, 2017, 68 :47-72
[10]   Neural discharge and local field potential oscillations in primate motor cortex during voluntary movements [J].
Donoghue, JP ;
Sanes, JN ;
Hatsopoulos, NG ;
Gaál, G .
JOURNAL OF NEUROPHYSIOLOGY, 1998, 79 (01) :159-173
1234