Directional processing within the perceptual span during visual target localization

被引：13

作者：

Greene, Harold H. ^{[1
]}

Pollatsek, Alexander ^{[2
]}

Masserang, Kathleen ^{[2
]}

Lee, Yen Ju ^{[1
]}

Rayner, Keith ^{[3
]}

机构：

[1] Univ Detroit Mercy, Dept Psychol, Detroit, MI 48221 USA

[2] Univ Massachusetts, Dept Psychol, Amherst, MA 01003 USA

[3] Univ Calif San Diego, Dept Psychol, San Diego, CA 92103 USA

来源：

VISION RESEARCH | 2010年 / 50卷 / 13期

基金：

美国国家卫生研究院;

关键词：

Perceptual span; Visual search; Eye movements; EYE-MOVEMENT CONTROL; SIMULATED SCOTOMAS; EFFECTIVE STIMULUS; SCENE PERCEPTION; SEARCH; ATTENTION; FIXATION; INFORMATION; MEMORY; PERFORMANCE;

D O I：

10.1016/j.visres.2010.04.012

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

In order to understand how processing occurs within the effective field of vision (le perceptual span) during visual target localization, a gaze-contingent moving mask procedure was used to disrupt parafoveal information pickup along the vertical and the horizontal visual fields When the mask was present within the horizontal visual field, there was a relative increase in saccade probability along the nearby vertical field, but not along the opposite horizontal field When the mask was present either above or below fixation, saccades downwards were reduced in magnitude This pattern of data suggests that parafoveal information selection (indexed by probability of saccade direction) and the extent of spatial parafoveal processing in a given direction (Indexed by saccade amplitude) may be controlled by somewhat different mechanisms (C) 2010 Elsevier Ltd. All rights reserved

引用

页码：1274 / 1282

页数：9

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