Effect of preliminary muscular tension on reaction latency.
Effect of preliminary muscular tension on reaction latency.
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初步肌张力对反应潜伏期的影响。
DOI：
10.1080/10671188.1968.10616530
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发表时间：
1968
期刊：
影响因子：
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通讯作者：
D. Clarke
中科院分区：
文献类型：
--
作者：
D. Clarke
测量简单反应时间的任务是通过给予手部握力肌肉最大收缩来响应听觉信号。每次测试之前，41名受试者在测试前都要进行一次预备性的次最大肌肉收缩，将测功机自动握紧至规定的10、15、20、25和30千克。此外，我们还设置了一个没有肌肉张力的对照组。在不同的条件下，反应时间有显著的改善（F=12.6），但差异完全存在于对照组和10公斤预张力之间，两者都比所有其他条件慢；超过15公斤，差异不显著。这支持了肌肉张力增加的概念，以准备设定的形式，导致更快的反应时间。
Abstract The task for measurement of simple reaction time was to respond to an auditory signal by giving a maximal contraction of the hand-gripping muscles. Each test was preceded by a preparatory submaximal muscular contraction during the foreperiod, accomplished by having the 41 subjects voluntarily grip the dynamometer to the specified values of 10, 15, 20, 25, and 30 kg. In addition, a control group was employed which involved no preliminary muscular tension. A significant improvement in reaction time was found among conditions (F=12.6), but the differences were entirely between control and 10-kg pre-tension, both of which were slower than all other conditions; beyond 15 kg, no significant differences existed. This supports the concept that increased muscular tension, in the form of preparatory set, results in faster reaction time.