Neural activity in early visual cortex reflects behavioral experience and higher-order perceptual saliency

被引:156
作者
Lee, TS
Yang, CF
Romero, RD
Mumford, D
机构
[1] Carnegie Mellon Univ, Ctr Neural Basis Cognit, Pittsburgh, PA 15213 USA
[2] Carnegie Mellon Univ, Dept Comp Sci, Pittsburgh, PA 15213 USA
[3] Brown Univ, Div Appl Math, Providence, RI 02912 USA
关键词
D O I
10.1038/nn860
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
We report here that shape-from-shading stimuli evoked a long-latency contextual pop-out response in V1 and V2 neurons of macaque monkeys, particularly after the monkeys had used the stimuli in a behavioral task. The magnitudes of the pop-out responses were correlated to the monkeys' behavioral performance, suggesting that these signals are neural correlates of perceptual pop-out saliency. The signals changed with the animal's behavioral adaptation to stimulus contingencies, indicating that perceptual saliency is also a function of experience and behavioral relevance. The evidence that higher-order stimulus attributes and task experience can influence early visual processing supports the notion that perceptual computation is an interactive and plastic process involving multiple cortical areas.
引用
收藏
页码:589 / 597
页数:9
相关论文
共 37 条
[31]   Contextual modulation in primary visual cortex of macaques [J].
Rossi, AF ;
Desimone, R ;
Ungerleider, LG .
JOURNAL OF NEUROSCIENCE, 2001, 21 (05) :1698-1709
[32]   LATERAL INTERACTIONS IN PRIMARY VISUAL-CORTEX - A MODEL BRIDGING PHYSIOLOGY AND PSYCHOPHYSICS [J].
STEMMLER, M ;
USHER, M ;
NIEBUR, E .
SCIENCE, 1995, 269 (5232) :1877-1880
[33]   Early computation of shape and reflectance in the visual system [J].
Sun, J ;
Perona, P .
NATURE, 1996, 379 (6561) :165-168
[34]   Two distinct modes of sensory processing observed in monkey primary visual cortex (V1) [J].
Supèr, H ;
Spekreijse, H ;
Lamme, VAF .
NATURE NEUROSCIENCE, 2001, 4 (03) :304-310
[35]   FEATURE-INTEGRATION THEORY OF ATTENTION [J].
TREISMAN, AM ;
GELADE, G .
COGNITIVE PSYCHOLOGY, 1980, 12 (01) :97-136
[37]  
Zipser K, 1996, J NEUROSCI, V16, P7376