Premotor and motor reaction time as a function of preliminary muscular tension.
Premotor and motor reaction time as a function of preliminary muscular tension.
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运动前和运动反应时间是初始肌张力的函数。
DOI：
10.1080/00222895.1970.10734868
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发表时间：
1970
影响因子：
1.4
通讯作者：
G. Alan Stull
中科院分区：
文献类型：
--
作者：
R. Schmidt;G. Alan Stull
学生挤压一个手柄装置到3个次最大张力中的1个，并对光线（实验1）作出反应。I，N = 30）或蜂鸣器（Exp. II，N = 24）通过尽可能快速和有力地挤压。总RT是从刺激到张力变化的时间，这被分为运动前RT（刺激到EMG变化）和运动RT（EMG变化到张力变化），以确定Clarke（1968）发现的总RT变化的轨迹。虽然总RT不受预张力增加的影响，但前运动RT缩短，运动RT延长。部分编程或激活的假设是成立的Premotor RT的变化，而在收缩组件的变化，但不是在一系列的弹性组件，是成立的电机RT的变化。
Ss squeezed a hand grip device to 1 of 3 submaximal tensions, and reacted to either a light (Exp. I, N = 30) or to a buzzer (Exp. II, N = 24) by squeezing as quickly and forcefully as possible. Total RT was the time from stimulus to the change in tension, and this was divided into Premotor RT (stimulus to change in EMG) and Motor RT (change in EMG to change in tension) to determine the locus of changes in Total RT found by Clarke (1968). Whereas Total RT was unaffected by increased pre-tension, Premotor RT shortened and Motor RT lengthened. Partial programming or activation hypotheses were tenable for the Premotor RT changes, whereas changes in the contractile component, but not in the series elastic component, were tenable for the Motor RT changes.