Independent voluntary correction and savings in locomotor learning
Independent voluntary correction and savings in locomotor learning
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DOI：
10.1242/jeb.181826
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发表时间：
2018-08-01
影响因子：
2.8
通讯作者：
Roemmich, Ryan T.
中科院分区：
文献类型：
--
作者：
Leech, Kristan A.;Roemmich, Ryan T.
人类可以通过许多不同的方式获得新的行走方式。例如，我们可以根据指令自发地改变步态，或者通过感知我们的运动错误来适应。在这里，我们研究了通过同时自主纠正和适应性学习获得新的步行模式如何影响所学模式的运动记忆。我们研究了在有视觉反馈和没有视觉反馈的情况下对分离式带式跑步机的适应性。正如预期的那样，视觉反馈能够更快地获取新的行走模式。然而，在随后再次暴露于相同的分裂带扰动时，参与者表现出相似的运动记忆，无论他们是否有视觉反馈。接受反馈的参与者并没有重新启动用于加速新步行模式初始习得的机制，以类似地加速随后的再学习。这些研究结果表明，随着时间的推移，自愿矫正既没有好处，也没有干扰保存新步行模式的能力。
Humans can acquire new walking patterns in many different ways. For example, we can change our gait voluntarily in response to instruction or adapt by sensing our movement errors. Here, we investigated how acquisition of a new walking pattern through simultaneous voluntary correction and adaptive learning affected the resulting motor memory of the learned pattern. We studied adaptation to split-belt treadmill walking with and without visual feedback of stepping patterns. As expected, visual feedback enabled faster acquisition of the new walking pattern. However, upon later re-exposure to the same split-belt perturbation, participants exhibited similar motor memories whether they had learned with or without visual feedback. Participants who received feedback did not re-engage the mechanism used to accelerate initial acquisition of the new walking pattern to similarly accelerate subsequent relearning. These findings reveal that voluntary correction neither benefits nor interferes with the ability to save a new walking pattern over time.