Influence of history on saccade countermanding performance in humans and macaque monkeys

被引：128

作者：

Emeric, Erik E.

Brown, Joshua W.

Boucher, Leanne

Carpenter, Roger H. S.

Hanes, Doug P.

Harris, Robin

Logan, Gordon D.

Mashru, Reena N.

Pare, Martin

Pouget, Pierre

Stuphorn, Veit

Taylor, Tracy L.

Schall, Jeffrey D.

机构：

[1] Vanderbilt Univ, Dept Psychol, Vanderbilt Vis Res Ctr, Ctr Integrat & Cognit Neurosci, Nashville, TN 37203 USA

[2] Washington Univ, Dept Psychol, St Louis, MO 63130 USA

[3] Univ Cambridge, Physiol Lab, Cambridge CB2 3EG, England

[4] Queens Univ, Dept Physiol, Kingston, ON K7L 3N6, Canada

[5] Johns Hopkins Univ, Dept Psychol, Baltimore, MD 21218 USA

[6] Dalhousie Univ, Dept Psychol, Halifax, NS B3H 3J5, Canada

来源：

VISION RESEARCH | 2007年 / 47卷 / 01期

基金：

英国惠康基金;

关键词：

serial order; sequential effect; stop signal task; executive control; race model; reaction time; saccade latency;

D O I：

10.1016/j.visres.2006.08.032

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

The stop-signal or countermanding task probes the ability to control action by requiring subjects to withhold a planned movement in response to an infrequent stop signal which they do with variable success depending on the delay of the stop signal. We investigated whether performance of humans and macaque monkeys in a saccade countermanding task was influenced by stimulus and performance history. In spite of idiosyncrasies across subjects several trends were evident in both humans and monkeys. Response time decreased after successive trials with no stop signal. Response time increased after successive trials with a stop signal. However, post-error slowing was not observed. Increased response time was observed mainly or only after cancelled (signal inhibit) trials and not after noncancelled (signal respond) trials. These global trends were based on rapid adjustments of response time in response to momentary fluctuations in the fraction of stop signal trials. The effects of trial sequence on the probability of responding were weaker and more idiosyncratic across subjects when stop signal fraction was fixed. However, both response time and probability of responding were influenced strongly by variations in the fraction of stop signal trials. These results indicate that the race model of countermanding performance requires extension to account for these sequential dependencies and provide a basis for physiological studies of executive control of countermanding saccade performance. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：35 / 49

页数：15

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