Two mechanisms underlying inhibition of return
Two mechanisms underlying inhibition of return
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DOI：
10.1007/s00221-009-2004-1
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发表时间：
2010-02-01
影响因子：
2
通讯作者：
Klein, Raymond M.
中科院分区：
文献类型：
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作者：
Chica, Ana B.;Taylor, Tracy L.;Klein, Raymond M.
返回抑制(IOR)是指对出现在先前刺激或检查位置的目标的反应时间较慢。Taylor和Klein(J Exp Teleol Hum Percept Performance 26(5)：1639-1656,2000)表明，IOR可以影响注意/知觉或运动过程，这分别取决于眼动系统是处于静止状态还是处于激活状态。如果IOR的运动特征确实是非感知和非注意的，那么当对目标的反应不是基于空间信息时，就不应该观察到IOR。在本实验中，我们证明当眼睛在目标出现之前移动到外围线索并回到中心(以产生运动味道)时，在检测任务中观察到IOR，对于该任务，空间位置是报告的发病的一个完整特征，但在颜色辨别任务中观察到IOR，对于该任务，报告了非空间知觉辨别的结果。当眼球运动被阻止时，两项任务都显示出很强的IOR。因此，我们得出结论，由眼球运动激活引起的IOR的运动味道不会影响注意力或知觉加工。
Inhibition of return (IOR) refers to slower reaction times to targets presented at previously stimulated or inspected locations. Taylor and Klein (J Exp Psychol Hum Percept Perform 26(5):1639-1656, 2000) showed that IOR can affect either attentional/perceptual or motor processes, depending on whether the oculomotor system is in a quiescent or in an activated state, respectively. If the motoric flavour of IOR is truly non-perceptual and non-attentional, no IOR should be observed when the responses to targets are not based on spatial information. In the present experiments, we demonstrated that when the eyes moved to the peripheral cue and back to centre before the target appeared (to generate the motoric flavour), IOR was observed in detection tasks, for which the spatial location is an integral feature of the onset that is reported, but not in colour discrimination tasks, for which the outcome of a non-spatial perceptual discrimination is reported. When eye movements were prevented, both tasks showed robust IOR. We, therefore, conclude that the motoric flavour of IOR, elicited by oculomotor activation, does not affect attention or perceptual processing.