Adaptation to a nonlinear visuomotor amplitude transformation with continuous and terminal visual feedback
Adaptation to a nonlinear visuomotor amplitude transformation with continuous and terminal visual feedback
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DOI：
10.3200/jmbr.40.5.368-379
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发表时间：
2008-09-01
影响因子：
1.4
通讯作者：
Hegele, Mathias
中科院分区：
文献类型：
--
作者：
Heuer, Herbert;Hegele, Mathias
计算机显示器上的光标油的控制提供了一种探索人类视觉运动协调可塑性极限的简单方法。作者探索了适应非线性视觉运动幅度变换的边界条件。作者假设只有在练习过程中才能得到最终的视觉反馈。但如果没有连续的视觉反馈，人类可能会开发出非线性视觉运动幅度变换的所有内部模型。因此。 2组从事感觉运动适应任务，在练习阶段接收连续或最终视觉反馈。与预期相反。观察到的不良视觉开环测试的适应性转变和后遗症与两组的目标振幅线性相关。尽管2个反馈组在适应性转变和后遗症方面没有差异。最终视觉反馈导致在整个延长时间内稳定的视觉开环表现，而在练习期间连续视觉反馈后运动错误增加。另一方面，连续视觉反馈的好处是更快的闭环性能表明视觉闭环控制的艺术优化。
The control of a Cursor oil a computer monitor offers a simple means of exploring the limits of the plasticity of human visuomotor coordination. The authors explored the boundary conditions for adaptation to nonlinear visuomotor amplitude transformations. The authors hypothesized that only with terminal Visual feedback during practice. but not with continuous Visual feedback, humans might develop all internal model of the nonlinear visuomotor amplitude transformation. Thus. 2 groups Were engaged in a sensorimotor adaptation task receiving either continuous or terminal visual feedback during (he practice phase. In contrast to expectations. adaptive shifts and aftereffects observed ill visual open-loop tests were linearly related to target amplitudes for both groups. Although the 2 feedback groups did not differ with respect to adaptive shifts and aftereffects. terminal visual feedback resulted in stable Visual open-loop performance for all extended period, whereas movement errors increased after continuous visual feedback during practice. The benefit of Continuous Visual feedback. oil the other hand, was faster closed-loop performance. indicating art optimization Of visual closed-loop control.