自由に決定された力発揮レベルの予備的筋収縮が反応時間に及ぼす影響

概要

論文の詳細を見る
The present study examined the effects of preparatory isometric muscular action(pretension)performed at a force level freely determined by performers upon simple reaction time(RT). RTs were compared between three pretension conditions in which the pretension levels were either instructed by the experimenter(Inst), freely selected by the subjects(Free), or without any pretension(Relax). Simple RTs were measurred for an elbow-flexion response to a visual stimulus. RTs under the two pretension conditions(Free and Inst)tended to be shorter than the RTs for the Relax. Despite the same pretension level being manipulated for both the Free and Inst conditions, RTs for the Free condition were significantly shorter than the RTs for the Inst. This suggests that the phenomenon of shortened RTs appearing under freely-determined pretension conditions is primarily mediated by some psychological factors, such as attention, rather than neuro-muscular factors, such as spinal excitatory effects.
日本運動生理学会の論文
2001-10-31