Systematic diagonal and vertical errors in antisaccades and memory-guided saccades

被引：0

作者：

Abegg, Mathias ^{[1
]}

Lee, Hyung ^{[2
]}

Barton, Jason J. S. ^{[3
]}

机构：

[1] Univ Bern, CH-3012 Bern, Switzerland

[2] Keimyung Univ, Taegu, South Korea

[3] Univ British Columbia, Vancouver, BC V5Z 1M9, Canada

来源：

JOURNAL OF EYE MOVEMENT RESEARCH | 2010年 / 3卷 / 03期

关键词：

Saccade; bias; accuracy;

D O I：

暂无

中图分类号：

R77 [眼科学];

学科分类号：

100212 ;

摘要：

Studies of memory-guided saccades in monkeys show an upward bias, while studies of antisaccades in humans show a diagonal effect, a deviation of endpoints toward the 45 degrees diagonal. To determine if these two different spatial biases are specific to different types of saccades, we studied prosaccades, antisaccades and memory-guided saccades in humans. The diagonal effect occurred not with prosaccades but with antisaccades and memory-guided saccades with long intervals, consistent with hypotheses that it originates in computations of goal location under conditions of uncertainty. There was a small upward bias for memory-guided saccades but not prosaccades or antisaccades. Thus this bias is not a general effect of target uncertainty but a property specific to memory-guided saccades.

引用

页数：10

共 26 条

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