Reaching affects saccade trajectories
Reaching affects saccade trajectories
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DOI：
10.1007/s002210000577
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发表时间：
2001-01-01
影响因子：
2
通讯作者：
Paul, MA
中科院分区：
文献类型：
--
作者：
Tipper, SP;Howard, LA;Paul, MA
前运动理论认为，当注意力指向一个位置时，参与实现当前行为目标的运动系统被激活。例如，当一项任务需要准确的到达时，对位置的注意力会激活控制扫视和手动到达的运动回路。这些动作涉及控制眼睛和手的独立神经系统，但我们相信，这些系统中作用于神经群体代码的选择过程是相似的，并且可以相互影响。注意效应可以在随后的动作中体现出来。目前的研究表明，眼睛扫视目标时所采取的路径受到是否也到达目标的影响。这种效果被解释为手为中心的框架，用于达到的空间框架的参考所需的扫视的影响。
The pre-motor theory suggests that, when attention is oriented to a location, the motor systems that are involved in achieving current behavioural goals are activated. For example, when a task requires accurate reaching, attention to a location activates the motor circuits controlling saccades and manual reaches. These actions involve separate neural systems for the control of eye and hand, but we believe that the selection processes acting on neural population codes within these systems are similar and can affect each other. The attentional effect can be revealed in the subsequent movement. The present study shows that the path the eye takes as it saccades to a target is affected by whether a reach to the target is also produced. This effect is interpreted as the influence of a hand-centred frame used in reaching on the spatial frame of reference required for the saccade.