Attention maintains mental extrapolation of target position: Irrelevant distractors eliminate forward displacement after implied motion
Attention maintains mental extrapolation of target position: Irrelevant distractors eliminate forward displacement after implied motion
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DOI：
10.1016/s0010-0277(03)00018-0
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发表时间：
2003-05-01
期刊：
影响因子：
3.4
通讯作者：
Kerzel, D
中科院分区：
文献类型：
--
作者：
Kerzel, D
观察者对运动目标的最终位置的判断通常会在隐含运动的方向上发生变化（“代表性动量”）。注意力的作用尚不清楚：视觉注意力可能是维持或停止目标位移所必需的。当注意力被不相关的干扰物捕获时，在保持间隔期间，隐含的目标运动后的前向位移消失，这表明注意力可能是必要的，以保持心理外推的目标运动。在进一步的验证实验中，在一系列暗示运动之后测量注意力的部署，并且观察到对运动方向上出现的刺激的更快反应。因此，注意可以引导目标运动的心理外推。此外，在刺激呈现和保持间隔期间测量眼动。结果表明，具有隐含运动的前向位移不依赖于眼动。隐含和平滑运动之间的差异进行了讨论，就最近的神经生理学研究结果。(C)2003 Elsevier Science B.V.保留所有权利。
Observers' judgments of the final position of a moving target are typically shifted in the direction of implied motion ("representational momentum"). The role of attention is unclear: visual attention may be necessary to maintain or halt target displacement. When attention was captured by irrelevant distractors presented during the retention interval, forward displacement after implied target motion disappeared, suggesting that attention may be necessary to maintain mental extrapolation of target motion. In a further corroborative experiment, the deployment of attention was measured after a sequence of implied motion, and faster responses were observed to stimuli appearing in the direction of motion. Thus, attention may guide the mental extrapolation of target motion. Additionally, eye movements were measured during stimulus presentation and retention interval. The results showed that forward displacement with implied motion does not depend on eye movements. Differences between implied and smooth motion are discussed with respect to recent neurophysiological findings. (C) 2003 Elsevier Science B.V. All rights reserved.