Motion transparency promotes synchronous perceptual binding

被引:22
作者
Clifford, CWG [1 ]
Spehar, B
Pearson, J
机构
[1] Univ Sydney, Colour Form & Mot Lab, Visual Percept Unit, Sch Psychol, Sydney, NSW 2006, Australia
[2] Univ New S Wales, Sch Psychol, Sydney, NSW 2052, Australia
基金
澳大利亚研究理事会;
关键词
binding problem; motion transparency; asynchrony; visual cortex; psychophysics; perception;
D O I
10.1016/j.visres.2004.07.022
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
While identified regions of human extrastriate visual cortex are functionally specialized for processing different attributes of an object, the cognitive and neural mechanisms by which these attributes are dynamically bound into integrated percepts are still largely mysterious. Here, we report that perceptual organization influences the dynamics of binding. Specifically, the perception of motion transparency promotes the synchronous perceptual binding of colour and motion, which otherwise exhibits considerable asynchronies. In addition, we demonstrate that perceptual asynchrony can be reinstated by manipulating stereoscopic disparity or speed within the stimulus. Our findings suggest that the phenomenology of colour-motion binding parallels the known physiology of motion processing in area MT of primate visual cortex, supporting the view that the dynamics of perceptual binding is a direct reflection of the time course of the underlying neural processing. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:3073 / 3080
页数:8
相关论文
共 32 条
[1]  
ALBRIGHT TD, 1987, EXP BRAIN RES, V65, P582
[2]  
ANSTIS S, 1970, VISION RES, V20, P1411
[3]   Asynchronous processing in vision: Color leads motion [J].
Arnold, DH ;
Clifford, CWG ;
Wenderoth, P .
CURRENT BIOLOGY, 2001, 11 (08) :596-600
[4]   Determinants of asynchronous processing in vision [J].
Arnold, DH ;
Clifford, CWG .
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, 2002, 269 (1491) :579-583
[5]   Color and motion: which is the tortoise and which is the hare? [J].
Bedell, HE ;
Chung, STL ;
Ogmen, H ;
Patel, SS .
VISION RESEARCH, 2003, 43 (23) :2403-2412
[6]   INTEGRATION OF MOTION AND STEREOPSIS IN MIDDLE TEMPORAL CORTICAL AREA OF MACAQUES [J].
BRADLEY, DC ;
QIAN, N ;
ANDERSEN, RA .
NATURE, 1995, 373 (6515) :609-611
[7]  
Bradley DC, 1998, J NEUROSCI, V18, P7552
[8]   A paradox of temporal perception revealed by a stimulus oscillating in colour and orientation [J].
Clifford, CWG ;
Arnold, DH ;
Pearson, J .
VISION RESEARCH, 2003, 43 (21) :2245-2253
[9]   TIME AND THE OBSERVER - THE WHERE AND WHEN OF CONSCIOUSNESS IN THE BRAIN [J].
DENNETT, DC ;
KINSBOURNE, M .
BEHAVIORAL AND BRAIN SCIENCES, 1992, 15 (02) :183-201
[10]   Motion integration and postdiction in visual awareness [J].
Eagleman, DM ;
Sejnowski, TJ .
SCIENCE, 2000, 287 (5460) :2036-2038