Cancelling Prism Adaptation by a Shift of Background: A Novel Utility of Allocentric Coordinates for Extracting Motor Errors
Cancelling Prism Adaptation by a Shift of Background: A Novel Utility of Allocentric Coordinates for Extracting Motor Errors
复制标题
通过背景移动取消棱镜自适应：异中心坐标提取运动误差的新实用程序
作者：
Motoaki Uchimura;S. Kitazawa
许多先前的研究报告说，我们的大脑不仅能够在以身体为中心的坐标中编码目标位置，而且还能够在背景中的地标方面编码目标位置。当我们被迫在目标消失后完成一项延迟到达任务时，这种以他为中心的记忆的重要性就会增加。然而，在我们可以自由地立即到达目标的自然情况下，非自我中心记忆的优点仍然难以捉摸。我们假设，allocentric记忆是必不可少的，即使在一个立即达到分离之间的错误归因于运动系统和错误归因于目标运动。我们在这里显示，在人类的棱镜适应，即适应达到运动的错误归因于位移的视野，可以取消或增强简单地通过移动的背景中飞行的达到运动。结果提供了直接的证据，为新的贡献allocentric内存在提供信息的“我打算去哪里”，从而区分目标运动的影响，从所发出的电机控制信号产生的错误。
Many previous studies have reported that our brains are able to encode a target position not only in body-centered coordinates but also in terms of landmarks in the background. The importance of such allocentric memory increases when we are forced to complete a delayed reaching task after the target has disappeared. However, the merit of allocentric memory in natural situations in which we are free to make an immediate reach toward a target has remained elusive. We hypothesized that allocentric memory is essential even in an immediate reach for dissociating between error attributable to the motor system and error attributable to target motion. We show here in humans that prism adaptation, that is, adaptation of reaching movements in response to errors attributable to displacement of the visual field, can be cancelled or enhanced simply by moving the background in mid-flight of the reaching movement. The results provide direct evidence for the novel contribution of allocentric memory in providing information on “where I intended to go,” thereby discriminating the effect of target motion from the error resulting from the issued motor control signals.
影响因子：
2.5
作者：
SOECHTING, JF;FLANDERS, M
通讯作者：
FLANDERS, M
指向一个非中心和自我中心的记忆目标。
影响因子：
1.1
作者：
Lemay,Martin;Bertram,ChristopherP;Stelmach,GeorgeE
通讯作者：
Stelmach,GeorgeE