2012年12月27日

Effects of Response Complexity and Movement Duration on the Lateralized Readiness Potential

第65回研究会
日時 :2012年8月22日(水)
場所  :早稲田大学スポーツ科学部570実験室
#1
演者 :Lu Xu (Graduate School of Sport Sciences, Waseda University)
演題 :Effects of Response Complexity and Movement Duration on the Lateralized Readiness Potential

発表要旨
The purpose of this study was to reveal the organization mechanism of motor programming, manipulating two motor-related factors in a random design. Participants were asked to perform choice reaction time tasks, in which they responded to the randomly presented imperative stimulus by pressing buttons with their left or right fingers, respectively, in different response complexity and movement duration. Only complexity effect was found on reaction time which showed faster responses in the complex conditions. Neither significant complexity nor duration effects were observed on stimulus-locked lateralized readiness potential (LRP). Response-locked LRP waveforms showed varied onset timing among conditions, however, such discrepancy failed to reach any significant difference. The results suggested that two separate stages associated with response complexity and movement duration seemed to exist according to Additive Factor Method logic, which is consistent with our previous finding in a block-wise design. Further research is needed to clarify the functional loci of response complexity and movement duration effects in the random design.

ラベル:要旨
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