Fischman M G, Mucci W G
Auburn University, Department of Health and Human Performance, AL 36849.
Percept Mot Skills. 1990 Oct;71(2):367-70. doi: 10.2466/pms.1990.71.2.367.
Reaction time (RT) for two three-segment target-striking responses involving changes in direction of movement was studied as a function of differences in their additive index . . . index of difficulty (A-ID). In one condition the A-ID was 9.96 and in the other, 6.76. For 16 right-handed university students, mean RT was significantly faster for the condition in which the index was 6.76. Movement times were consistent with Fitts' Law. The data support Sidaway, Christina, and Shea's 1988 prediction that for target-striking movements with changes of direction, RT is a function of the cumulative series of movement constraints.
针对涉及运动方向变化的两种三段式目标击打反应的反应时（RT），作为其相加指数……难度指数（A-ID）差异的函数进行了研究。在一种条件下，A-ID为9.96，在另一种条件下为6.76。对于16名右利手大学生，指数为6.76的条件下平均反应时明显更快。运动时间符合菲茨定律。这些数据支持了西达韦、克里斯蒂娜和谢伊1988年的预测，即对于有方向变化的目标击打动作，反应时是运动限制累积系列的函数。
