MOTION DEFINED EXCLUSIVELY BY 2ND-ORDER CHARACTERISTICS DOES NOT EVOKE OPTOKINETIC NYSTAGMUS

被引：56

作者：

HARRIS, LR ^{[1
]}

SMITH, AT ^{[1
]}

机构：

[1] UNIV WALES COLL CARDIFF,DEPT PSYCHOL,CARDIFF CF1 3YG,WALES

来源：

VISUAL NEUROSCIENCE | 1992年 / 9卷 / 06期

基金：

加拿大自然科学与工程研究理事会;

关键词：

MOTION PERCEPTION; OPTOKINETIC NYSTAGMUS; 2ND-ORDER MOTION; VISUAL NOISE;

D O I：

10.1017/S0952523800001802

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

We showed high-contrast, second-order motion stimuli to subjects whilst recording their horizontal eye movements. These stimuli were very poor at evoking optokinetic nystagmus. Smooth-pursuit eye movements and fixation were reduced by a masking band +/-2.5 deg above and below an imaginary fixation point. First-order stimuli evoked vigorous optokinetic nystagmus (OKN) under identical conditions and also when matched for apparent contrast. These findings are discussed in terms of the site of detection of second-order motion.

引用

页码：565 / 570

页数：6

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