Lofthus G K
Percept Mot Skills. 1981 Jun;52(3):683-93. doi: 10.2466/pms.1981.52.3.683.
The purpose of the study was to examine simple and choice fractionated reaction time components with respect to limb preference. Subjects (10 males, 10 females) participated in two experiments. The first experiment involved sensorimotor performance of the hands under four conditions of preferred only, nonpreferred only, bilateral simultaneous, and choice handgrip reaction time. The second experiment involved preferred and nonpreferred knee extension under the same conditions. Simple RT results indicated that performance task measures differed only for the preferred bilateral hand RT and corresponding premotor time. Under choice situations, the most rapid scores occurred with preferred unilateral reaction times due to briefer premotor times. The influence of the central, premotor component relative to simple and choice performance is discussed. Results are also presented with respect to male and female differences.
本研究的目的是考察简单和选择反应时成分与肢体偏好的关系。受试者（10名男性，10名女性）参与了两项实验。第一个实验涉及在仅使用优势手、仅使用非优势手、双侧同时使用以及选择握力反应时这四种条件下的手部感觉运动表现。第二个实验涉及在相同条件下的优势和非优势膝关节伸展。简单反应时结果表明，表现任务测量仅在优势双侧手部反应时和相应的运动前时间上有所不同。在选择情境下，由于运动前时间较短，优势单侧反应时的得分最快。讨论了相对于简单和选择表现的中枢、运动前成分的影响。还呈现了关于男性和女性差异的结果。
