EFFECTS OF INHIBITION OF RETURN ON VOLUNTARY AND VISUALLY GUIDED SACCADES
EFFECTS OF INHIBITION OF RETURN ON VOLUNTARY AND VISUALLY GUIDED SACCADES
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DOI：
10.1037/1196-1961.48.2.284
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发表时间：
1994-06-01
影响因子：
1.3
通讯作者：
RHODES, D
中科院分区：
文献类型：
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作者：
RAFAL, R;EGLY, R;RHODES, D
四个实验研究了内源性产生的和视觉引导的眼跳的抑制返回的影响。在实验1-3中，受试者对一个外围目标做出反应，要么是正面扫视（朝向目标），要么是反扫视（朝向目标对面的区域）。在目标出现之前，两个等概率目标位置中的一个通过呈现外围precue（实验1和2）或通过响应于中央precue执行内源性扫视（实验3）来激活。在实验1中，眼睛保持固定时，出现的线索，在实验2中，受试者进行了扫视周边线索，并返回他们的眼睛的中心之前，目标出现。 在这两个实验中，眼跳潜伏期较长的目标出现在precued位置的正面和反眼跳任务。 在实验3中，眼跳潜伏期较长的目标出现在precue的位置，只有在前视任务，没有效果的precue在antiscade任务。这些结果表明，内源性产生的扫视激活抑制目标检测和电机交替偏置。实验4表明，由外围precue产生的返回抑制增加了随后的内源性眼跳（从中央，箭头目标）朝向precue的位置的潜伏期。返回抑制可能会影响知觉加工，也会产生运动交替偏误，这取决于它是外源性激活还是内源性激活。
Four experiments examined the effects of inhibition Of return on endogenously generated and visually guided saccades. In Experiments 1-3, subjects responded to a Peripheral target by making either a prosaccade (toward the target) or an antisaccade (toward the field opposite the target). Prior to the appearance of the target, one of the two equiprobable target locations was activated by presenting a peripheral precue (Experiments 1 and 2), or by executing an endogenous saccade in response to a central precue (Experiment 3). In Experiment 1, the eyes remained fixed when the cue appeared; in Experiment 2 subjects made a saccade to the Peripheral cue, and returned their eyes to the centre before the target appeared. In both experiments, saccade latencies were longer for targets appearing at the precued location for both prosaccade and antisaccade tasks. In Experiment 3, saccade latencies were longer for targets appearing at the precued location only in the prosaccade task; no effect of the precue was obtained in the antisaccade task. These results suggest that endogenously generated saccades activate both an inhibition of target detection and a motor alternation bias. Experiment 4 showed that inhibition of return generated by a peripheral precue increased the latency for a subsequent endogenous saccade (from a central, arrow target) toward the precued location. Inhibition of return may affect perceptual processing and also produce a motor alternation bias dependent upon whether it is activated exogenously or endogenously.