Teasdale N, Bard C, Fleury M, Young D E, Proteau L
Université Laval, Départment d'éducation Physique, PEPS, Laboratoire de Performance Motrice Humaine, Sainte-Foy, Québec G1K 7P4, Canada.
J Mot Behav. 1993 Jun;25(2):97-106. doi: 10.1080/00222895.1993.9941644.
With the advent of recent measurement techniques, kinematic and kinetic measures commonly are used to describe events over time. Often, the central and peripheral nature of the control processes involved are derived from these temporal series. For example, movement onset often arbitrarily defines the end of the central and the beginning of the peripheral processes. Because of its critical temporal location, we examined whether response dynamics (average movement velocity) affects the determination of movement onset. Interactive graphics and numerical methods of determining movement onsets from temporal series were evaluated on various kinematic signals. Variations in the initial rate of change in a given signal significantly affected the determination of movement onset. Consequently, measurements of component latency must be regarded with caution. A cursory description of related problems elucidated in previous research is discussed, and procedures that can minimize these artifacts are suggested.
随着近期测量技术的出现，运动学和动力学测量通常用于描述随时间变化的事件。通常，所涉及控制过程的中枢和外周性质是从这些时间序列中推导出来的。例如，运动开始通常被任意定义为中枢过程的结束和外周过程的开始。由于其关键的时间位置，我们研究了反应动力学（平均运动速度）是否会影响运动开始的判定。在各种运动学信号上评估了用于从时间序列中确定运动开始的交互式图形和数值方法。给定信号初始变化率的变化显著影响运动开始的判定。因此，必须谨慎看待成分潜伏期的测量。讨论了对先前研究中阐明的相关问题的粗略描述，并提出了可将这些伪影最小化的程序。
