Independent selection of eye and hand targets suggests effector-specific attentional mechanisms.

Independent selection of eye and hand targets suggests effector-specific attentional mechanisms.
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DOI:
10.1038/s41598-018-27723-4
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发表时间:
2018-06-21
期刊:
影响因子:
4.6
通讯作者:
Deubel H
Deubel H
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Hanning NM;Aagten-Murphy D;Deubel H

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在运动准备期间,眼睛和手的运动都将视觉注意力绑定到其目标位置。然而,它仍然是有争议的眼睛和手的目标是由一个单一的选择系统,或单独选择独立的系统。为了解开这一争议,我们调查了视觉注意力的部署-运动目标选择的代理-在协调的眼手运动。结果表明,注意力建立在眼睛和手的目标平行。重要的是,注意力分配到一个效应器的运动目标不受其他效应器的运动在运动准备过程中的任何时间的并发准备。这表明,眼睛和手的目标表示在单独的,效应器特定的动作相关位置的地图。在行为水平上经常观察到的眼-手同步性必须来自两个效应器系统在稍后的注意后处理阶段的相互影响。
Both eye and hand movements bind visual attention to their target locations during movement preparation. However, it remains contentious whether eye and hand targets are selected jointly by a single selection system, or individually by independent systems. To unravel the controversy, we investigated the deployment of visual attention – a proxy of motor target selection – in coordinated eye-hand movements. Results show that attention builds up in parallel both at the eye and the hand target. Importantly, the allocation of attention to one effector’s motor target was not affected by the concurrent preparation of the other effector’s movement at any time during movement preparation. This demonstrates that eye and hand targets are represented in separate, effector-specific maps of action-relevant locations. The eye-hand synchronisation that is frequently observed on the behavioral level must emerge from mutual influences of the two effector systems at later, post-attentional processing stages.
DOI: 10.1038/nn862
发表时间: 2002-06-01
影响因子: 25
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