INTERACTIONS BETWEEN COLOR AND LUMINANCE CONTRAST IN THE PERCEPTION OF MOTION

被引：24

作者：

MULLEN, KT

BOULTON, JC

机构：

[1] McGill Vision Research Centre, Department of Ophthalmology, McGill University, Montreal, H3A 1A1

[2] Department of Medical Physics, Buys Ballot Laboratory, State University Utrecht, Utrecht, 3508 TA

来源：

OPHTHALMIC AND PHYSIOLOGICAL OPTICS | 1992年 / 12卷 / 02期

关键词：

D O I：

10.1111/j.1475-1313.1992.tb00290.x

中图分类号：

R77 [眼科学];

学科分类号：

100212 ;

摘要：

It has been demonstrated widely that at isoluminance moving chromatic stimuli are seen to be stationary or moving more slowly than their luminance counterparts. We have examined the effect on perceived velocity of adding luminance contrast to an isoluminant chromatic stimulus. We show that moving luminance contrast 'captures' colour so that a combined colour and luminance stimulus is seen moving as a unified percept. However, in the presence of colour contrast, significantly higher levels of luminance contrast are required to achieve a veridical velocity than for monochromatic stimuli with only luminance contrast. We show that this interactive effect between colour and luminance contrast cannot be fully explained by a threshold masking of luminance by colour contrast. The effect suggests that a breakdown in the veridical perception of velocity should be expected for colours with a wide range of associated luminance contrasts and not just for those at the point of isoluminance.

引用

页码：201 / 205

页数：5

共 18 条

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