Interactive priming enhanced by negative damping aids learning of an object manipulation task
Interactive priming enhanced by negative damping aids learning of an object manipulation task
复制标题
通过负阻尼增强的交互式启动有助于学习对象操作任务
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
F. Mussa
中科院分区：
文献类型：
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作者：
F. Huang;J. Patton;F. Mussa
我们研究了与物体的自由互动如何影响运动规划的形成。受试者控制一个力反馈平面操纵器，该操纵器呈现模拟的各向异性惯性力。作为性能评估，受试者围绕规定的轨道做圆周运动。为了研究潜在的增强运动规划，我们引入了负阻尼在ldquointeractive primingrdquo阶段之前的任务性能。作为对照，我们提出了第二个主题组与正常的互动启动。我们的结果显示，与对照组相比，接受增强预充的受试者组的最大曲率误差显著降低（双尾T检验，p=1.86e-6）。第一组的错误减少了34.8%，而第二组减少了5.78%。我们还观察到，与对照相比，增强启动的呈现明显引起了对捕获试验的更大敏感性。在早期训练期间，与组II（50.8%）相比，组I在捕获试验（相对于基线）中表现出更大的最大曲率误差增加（92.0%）（双尾T检验，p=1.9e-3）。这些结果表明，某些形式的增强任务动态-导致更广泛的状态空间的探索-可以帮助加速学习的控制策略，适合于一个独立的环境。这一发现也是一致的假设，即受试者可以分解成加速度和速度依赖的元素的环境阻抗。
We investigated how free interaction with an object influences the formation of motor planning. Subjects controlled a force-feedback planar manipulandum that presented simulated anisotropic inertial forces. As a performance evaluation, subjects made circular movements about a prescribed track. In order to investigate potential enhancement of motor planning, we introduced negative damping during an ldquointeractive primingrdquo phase prior to task performance. As a control, we presented a second subject group with normal interactive priming. Our results showed significantly greater reduction in maximum curvature error for the subject group that received enhanced priming (two-tailed T-test, p=1.86e-6) compared to the control group. Group-I demonstrated a 34.8% reduction in error while Group-II achieved 5.78% reduction. We also observed that the presentation of enhanced priming evidently caused a greater sensitivity to catch trials compared to the control. Group-I demonstrated a larger increase (92.0%) in maximum curvature error in catch- trials (with respect to baseline), compared to Group-II (50.8%) during early training (two-tailed T-test, p=1.9e-3). These results suggest that some forms of augmentation to task dynamics - leading to the exploration of a broader state space -can help the accelerate the learning of control strategies suitable for an unassisted environment. The finding is also consistent with the hypothesis that subjects can decompose the environment impedance into acceleration and velocity dependent elements.
影响因子：
2.5
作者：
Conditt, MA;Gandolfo, F;MussaIvaldi, FA
通讯作者：
MussaIvaldi, FA