THE ROLE OF VISUAL-ATTENTION IN SACCADIC EYE-MOVEMENTS
THE ROLE OF VISUAL-ATTENTION IN SACCADIC EYE-MOVEMENTS
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DOI：
10.3758/bf03206794
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发表时间：
1995-08-01
期刊：
影响因子：
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通讯作者：
SUBRAMANIAM, B
中科院分区：
文献类型：
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作者：
HOFFMAN, JE;SUBRAMANIAM, B
在两个实验中研究了眼球扫视运动与视觉空间注意力的隐蔽定向之间的关系。在第一个实验中，受试者被要求向指定位置进行扫视，同时检测眼球运动之前出现的视觉目标。当目标位置与扫视的位置一致时，检测精度最高，这表明受试者在扫视眼球运动的编程和/或执行中使用了空间注意力。在第二个实验中，受试者被明确指示注意某个特定位置，并向同一位置或不同位置进行扫视。无论注意指令如何，在扫视位置都会发生出色的目标检测。这一发现表明，受试者无法将眼睛移至一个位置并注意另一个位置。这些实验的结果表明，视觉空间注意力是产生自愿眼跳运动的重要机制。
The relationship between saccadic eye movements and covert orienting of visual spatial attention was investigated in two experiments. In the first experiment, subjects were required to make a saccade to a specified location while also detecting a visual target presented just prior to the eye movement. Detection accuracy was highest when the location of the target coincided with the location of the saccade, suggesting that subjects use spatial attention in the programming and/or execution of saccadic eye movements. In the second experiment, subjects were explicitly directed to attend to a particular location and to make a saccade to the same location or to a different one. Superior target detection occurred at the saccade location regardless of attention instructions. This finding shows that subjects cannot move their eyes to one location and attend to a different one. The results of these experiments suggest that visuospatial attention is an important mechanism in generating voluntary saccadic eye movements.