视觉反馈影响青少年在机器人引导下对扭矩与运动曲线的短期学习

IF 1.6 3区 心理学 Q4 NEUROSCIENCES Human Movement Science Pub Date : 2024-05-01 DOI:10.1016/j.humov.2024.103221
C.R. Scotto , Y. Blandin , R. Crolan , A. Eon , P. Laguillaumie , A. Decatoire
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引用次数: 0

摘要

机器人辅助可以改善复杂运动技能的学习。然而,迄今为止所设计和使用的辅助工具主要是引导运动指令进行轨迹学习,而不是动态学习。本研究探索了如何在不抑制任务动态的情况下学习涉及右臂的复杂运动技能,其方法是通过一种创新的机器人引导装置,利用导纳控制学习扭矩与运动曲线。此外,我们还通过渐变程序(即减少各次试验中的反馈),评估了关于该曲线的并发视觉反馈如何在不产生依赖性的情况下增强学习效果。第 1 天,对照组进行了以并发视觉反馈为特征的习得训练(6 个区块),而渐弱组则进行了反馈逐渐减少的训练(在 6 个区块中从 100% 减少到 0%)。第 2 天,两组都先进行了无反馈区块(即转移测试),然后进行了有反馈区块(即保持测试)。结果表明,在第 1 天,与消退组相比,控制组的动作排练在时空参数上有显著改善。第 2 天,当视觉反馈被移除时,结果却恰恰相反,淡入组在转移测试中的表现明显优于对照组。视觉可以在所需扭矩和运动曲线之间建立联系。视觉反馈被抑制后,会迫使人们处理更多的内在信息,从而形成稳定的任务内部表征。
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Visual feedbacks influence short-term learning of torque versus motion profile with robotic guidance among young adults

Robotic assistance can improve the learning of complex motor skills. However, the assistance designed and used up to now mainly guides motor commands for trajectory learning, not dynamics learning. The present study explored how a complex motor skill involving the right arm can be learned without suppressing task dynamics, by means of an innovative device with robotic guidance that allows a torque versus motion profile to be learned with admittance control. In addition, we assessed how concurrent visual feedback on this profile can enhance learning without creating dependency, by means of a fading procedure (i.e., feedback reduction across trials). On Day 1, a Control group performed an acquisition session (6 blocks) featuring concurrent visual feedback, while a Fading group performed the session with a gradual reduction in feedback (from 100% to 0% over the 6 blocks). On Day 2, both groups performed a block first without feedback (i.e., Transfer test), then with feedback (i.e., Retention test). Results revealed that on Day 1, movement rehearsal induced a significant improvement in spatiotemporal parameters for the Control group, compared with the Fading group. On Day 2, the opposite was found when this visual feedback was removed, as the Fading group performed significantly better than the Control group on the Transfer test. Vision allows a relationship to be established between the required torque and the motion profile. Its suppression then forces the processing of more intrinsic information, leading to the development of a stable internal representation of the task.

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来源期刊
Human Movement Science
Human Movement Science 医学-神经科学
CiteScore
3.80
自引率
4.80%
发文量
89
审稿时长
42 days
期刊介绍: Human Movement Science provides a medium for publishing disciplinary and multidisciplinary studies on human movement. It brings together psychological, biomechanical and neurophysiological research on the control, organization and learning of human movement, including the perceptual support of movement. The overarching goal of the journal is to publish articles that help advance theoretical understanding of the control and organization of human movement, as well as changes therein as a function of development, learning and rehabilitation. The nature of the research reported may vary from fundamental theoretical or empirical studies to more applied studies in the fields of, for example, sport, dance and rehabilitation with the proviso that all studies have a distinct theoretical bearing. Also, reviews and meta-studies advancing the understanding of human movement are welcome. These aims and scope imply that purely descriptive studies are not acceptable, while methodological articles are only acceptable if the methodology in question opens up new vistas in understanding the control and organization of human movement. The same holds for articles on exercise physiology, which in general are not supported, unless they speak to the control and organization of human movement. In general, it is required that the theoretical message of articles published in Human Movement Science is, to a certain extent, innovative and not dismissible as just "more of the same."
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