A population-coding model of attention's influence on contrast response: Estimating neural effects from psychophysical data

被引：74

作者：

Pestilli, Franco ^{[1
,2
,3
]}

Ling, Sam ^{[2
,3
,4
]}

Carrasco, Marisa ^{[2
,3
]}

机构：

[1] Columbia Univ, Dept Neurosci, New York, NY 10032 USA

[2] NYU, Dept Psychol, New York, NY 10003 USA

[3] NYU, Ctr Neural Sci, New York, NY 10003 USA

[4] Vanderbilt Univ, Nashville, TN USA

来源：

VISION RESEARCH | 2009年 / 49卷 / 10期

关键词：

Attention; Pshychophysics; Contrast gain; Response gain; Population coding; Attention model; SPATIAL ATTENTION; GAIN MODULATION; EXTERNAL NOISE; SENSITIVITY; INFORMATION; MECHANISMS; COLOR; SYNCHRONIZATION; IMPAIRS; MOTION;

D O I：

10.1016/j.visres.2008.09.018

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Human psychophysics; and monkey physiology studies have shown that attention modulates early vision - contrast sensitivity and processing. But how can we bridge the effects of attention on perceptual performance to their neural underpinnings? Here we implement a population-coding model that estimates attentional effects on population contrast response given psychophysical data. Model results show that whereas endogenous (sustained, voluntary) attention changes population contrast-response via contrast gain, exogenous (transient, involuntary) attention changes population contrast-response via response gain. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1144 / 1153

页数：10

共 44 条

[1] The effect of correlated variability on the accuracy of a population code
Abbott, LF
Dayan, P
[J]. NEURAL COMPUTATION, 1999, 11 (01) : 91 - 101
[2] Albrecht D.G., 1981, Journal of the Optical Society Am, V88, P888
[3] STRIATE CORTEX OF MONKEY AND CAT - CONTRAST RESPONSE FUNCTION
ALBRECHT, DG
HAMILTON, DB
[J]. JOURNAL OF NEUROPHYSIOLOGY, 1982, 48 (01) : 217 - 237
[4] [Anonymous], 1994, An introduction to the bootstrap: CRC press
[5] Neural correlations, population coding and computation
Averbeck, BB
Latham, PE
Pouget, A
[J]. NATURE REVIEWS NEUROSCIENCE, 2006, 7 (05) : 358 - 366
[6] BRITTEN KH, 1992, J NEUROSCI, V12, P4745
[7] Covert attention affects the psychometric function of contrast sensitivity
Cameron, EL
Tai, JC
Carrasco, M
[J]. VISION RESEARCH, 2002, 42 (08) : 949 - 967
[8] Brain state and contrast sensitivity in the awake visual thalamus
Cano, Monica
Bezdudnaya, Tatiana
Swadlow, Harvey A.
Alonso, Jose-Manuel
[J]. NATURE NEUROSCIENCE, 2006, 9 (10) : 1240 - 1242
[9] Spatial covert attention increases contrast sensitivity across the CSF: support for signal enhancement
Carrasco, M
Penpeci-Talgar, C
Eckstein, M
[J]. VISION RESEARCH, 2000, 40 (10-12) : 1203 - 1215
[10] Carrasco M, 2006, PROG BRAIN RES, V154, P33

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