The structure of motor programming: Evidence from reaction times and lateralized readiness potentials

Lu Xu, Werner Sommer, Hiroaki Masaki

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

There is a widely accepted notion that movement elements are assembled prior to movement execution in a central motor programming stage. However, it is not clear how this stage is structured-whether it is a unitary stage allowing different motor parameters to cross talk or whether there are several independent processes dealing with each motor parameter. We addressed this question by orthogonally manipulating two movement-related factors: response sequence complexity and movement duration. Both factors yielded main effects on reaction time but no interaction. Additive effects of both factors on the onsets of response- but not stimulus-synchronized lateralized readiness potentials suggest separable motoric loci of sequence complexity and duration. These findings are at variance with the notion of a unitary movement programming stage.

Original languageEnglish
Pages (from-to)149-155
Number of pages7
JournalPsychophysiology
Volume52
Issue number1
DOIs
Publication statusPublished - 2015 Jan 1

Fingerprint

Contingent Negative Variation
Reaction Time
Motor Programming

Keywords

  • Finger tapping
  • Kinematic parameter
  • Lateralized readiness potential
  • Mental chronometry
  • Movement preparation

ASJC Scopus subject areas

  • Physiology
  • Physiology (medical)
  • Experimental and Cognitive Psychology
  • Neuropsychology and Physiological Psychology
  • Arts and Humanities (miscellaneous)
  • Developmental and Educational Psychology

Cite this

The structure of motor programming : Evidence from reaction times and lateralized readiness potentials. / Xu, Lu; Sommer, Werner; Masaki, Hiroaki.

In: Psychophysiology, Vol. 52, No. 1, 01.01.2015, p. 149-155.

Research output: Contribution to journalArticle

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