The effect of haptic guidance, aging, and initial skill level on motor learning of a steering task
The effect of haptic guidance, aging, and initial skill level on motor learning of a steering task
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DOI：
10.1007/s00221-009-2026-8
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发表时间：
2010-03-01
影响因子：
2
通讯作者：
Reinkensmeyer, David J.
中科院分区：
文献类型：
--
作者：
Marchal-Crespo, Laura;McHughen, Stephanie;Reinkensmeyer, David J.
在以前的一项研究中，我们发现，从机器人方向盘的触觉指导可以改善短期学习的模拟车辆转向，相比之下，其他任务的几项研究发现，指导要么损害或不帮助运动学习。在这项研究中，我们研究了触觉指导是否可以提高长期保持（1周）的转向任务，年龄和初始技能水平作为自变量。根据需要提供指导的培训使所有参与者都能够在没有出现大错误的情况下学习驾驶。对于年轻的参与者（18-30岁）来说，有指导的培训比没有指导的培训更能长期保持驾驶技能。对于年龄较大的参与者（65-92岁），根据需要提供指导的培训可以改善跟踪错误的长期保留，但不显着。然而，对于一部分技能较低、年龄较大的受试者，按需指导的培训显著提高了长期保留率。基于指导的培训的好处是最明显的，因为提高了在转弯时拉直车辆方向的能力。一般来说，年长的参与者不仅在系统上比年轻的受试者表现更差（错误类似于3倍），而且显然学习得更慢，在实验会话之间的1周裁员期间忘记了更大比例的学习任务。这项研究表明，培训与触觉指导可以有利于长期保留的驾驶技能，为年轻人和一些老司机。触觉引导的训练对于初始技能较少的人更有用。
In a previous study, we found that haptic guidance from a robotic steering wheel can improve short-term learning of steering of a simulated vehicle, in contrast to several studies of other tasks that had found that the guidance either impairs or does not aid motor learning. In this study, we examined whether haptic guidance-as-needed can improve long-term retention (across 1 week) of the steering task, with age and initial skill level as independent variables. Training with guidance-as-needed allowed all participants to learn to steer without experiencing large errors. For young participants (age 18-30), training with guidance-as-needed produced better long-term retention of driving skill than did training without guidance. For older participants (age 65-92), training with guidance-as-needed improved long-term retention in tracking error, but not significantly. However, for a subset of less skilled, older subjects, training with guidance-as-needed significantly improved long-term retention. The benefits of guidance-based training were most evident as an improved ability to straighten the vehicle direction when coming out of turns. In general, older participants not only systematically performed worse at the task than younger subjects (errors similar to 3 times greater), but also apparently learned more slowly, forgetting a greater percentage of the learned task during the 1 week layoffs between the experimental sessions. This study demonstrates that training with haptic guidance can benefit long-term retention of a driving skill for young and for some old drivers. Training with haptic guidance is more useful for people with less initial skill.