Microsaccade dynamics during covert attention

被引：171

作者：

Laubrock, J ^{[1
]}

Engbert, R ^{[1
]}

Kliegl, R ^{[1
]}

机构：

[1] Univ Potsdam, Dept Psychol, D-14415 Potsdam, Germany

来源：

VISION RESEARCH | 2005年 / 45卷 / 06期

关键词：

attention; eye movements; fixation; reaction time;

D O I：

10.1016/j.visres.2004.09.029

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

We compared effects of covert spatial-attention shifts induced with exogenous or endogenous cues on microsaccade rate and direction. Separate and dissociated effects were obtained in rate and direction measures. Display changes caused microsaccade rate inhibition, followed by sustained rate enhancement. Effects on microsaccade direction were differentially tied to cue class (exogenous vs. endogenous) and type (neutral vs. directional). For endogenous cues, direction effects were weak and occurred late. Exogenous cues caused a fast direction bias towards the cue (i.e., early automatic triggering of saccade programs), followed by a shift in the opposite direction (i.e, controlled inhibition of cue-directed saccades, leading to a 'leakage' of microsaccades in the opposite direction). (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：721 / 730

页数：10

共 30 条

[21] The VideoToolbox software for visual psychophysics: Transforming numbers into movies [J].