Somatosensory temporal discrimination threshold changes during motor learning
Somatosensory temporal discrimination threshold changes during motor learning
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DOI：
10.1080/08990220.2020.1830755
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发表时间：
2020-10-15
影响因子：
0.9
通讯作者：
Sugawara，Kenichi
中科院分区：
文献类型：
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作者：
Yoshida，Naoshin;Suzuki，Tomotaka;Sugawara，Kenichi
目的体感时间辨别阈的机制及其与运动控制的关系已有报道，但对运动学习过程中触觉信息时间加工的变化知之甚少。我们调查了在反馈控制task.Materials和MethodsWe包括15名健康人的运动学习过程中的体感时间辨别阈值的变化。在食指上测量体感时间辨别阈值。进行10次硬币旋转任务，每次训练2分钟。通过测试（以最大速度以180°连续硬币旋转10秒）确定硬币旋转分数。分别在实验前、实验5组（1组× 5）、实验5组（1组× 5）、实验10组（1组× 5）和实验5组（1组× 5）后测定硬币旋转测试成绩和体感时间辨别阈。比较两组的硬币旋转评分和体感时间辨别阈。后者之间也进行了比较的权利（在主题内的控制）和左finger.ResultsThe硬币旋转评分显示所有测试之间的显着差异。在躯体感觉时间辨别阈值，有一个显着的差异，前测试和后测试5块值，前测试和后测试10块值的左侧和右侧之间的后测试5块和后测试10块value.ConclusionsThe躯体感觉时间辨别阈值下降沿着与任务性能的进展，在反馈控制任务的运动学习。
PurposeMechanisms underlying the somatosensory temporal discrimination threshold and its relationship with motor control have been reported; however, little is known regarding the change in temporal processing of tactile information during motor learning. We investigated the somatosensory temporal discrimination threshold changes during motor learning in a feedback-control task.Materials and methodsWe included 15 healthy individuals. The somatosensory temporal discrimination threshold was measured on the index finger. A 10-session coin rotation task was performed, with 2 min’ training per session. The coin rotation scores were determined through tests (continuous coin rotation at 180° at maximum speed for 10 s). The coin rotation test score and the somatosensory temporal discrimination threshold were determined at baseline and after 5 and 10 sets of training, as follows: pre-test; training5set(1 set × 5); post-test5block; training5set(1 set × 5); and post-test10block. The coin rotation score and the somatosensory temporal discrimination threshold were compared between the tests. The latter was also compared between the right (the within-subject control) and left fingers.ResultsThe coin rotation score showed significant differences among all tests. In the somatosensory temporal discrimination threshold, there was a significant difference between the pre-test and post-test5blockvalues, pre-test and post-test10blockvalues of the left side and between the right and left sides in the post-test5blockand the post-test10blockvalues.ConclusionsThe somatosensory temporal discrimination threshold decreased along with task-performance progress following motor learning during a feedback-control task.