THE HARMONIC BANDWIDTH OF PHASE-REVERSAL DISCRIMINATION

被引:7
作者
BENNETT, PJ
机构
[1] Department of Psychology, University of Toronto, Toronto, M5S 1A1, ON
来源
PERCEPTION & PSYCHOPHYSICS | 1993年 / 53卷 / 03期
关键词
D O I
10.3758/BF03205184
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
Previous studies have shown that 180-degrees relative phase shifts in f + 2f gratings are discriminated when the cosine or the sine component of the shift exceeds some criterion (Bennett & Banks, 1987; Field & Nachmias, 1984). The current experiments demonstrate that this result holds for other two-component gratings, provided that the components are within two to three octaves of each other. For frequency differences greater than two to three octaves, phase-reversal discrimination is impossible. A simple model that discriminates phase shifts on the basis of changes in the responses of even- and odd-symmetric spatial filters can account for the results.
引用
收藏
页码:292 / 304
页数:13
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