Planning of rapid aiming movements and the contingent negative variation: Are movement duration and extent specified independently?

H Leuthold, Ines Jentzsch

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

In the present study we investigated motor programming constraints implied by the Generalized Motor Program (GMP) view. A response precuing task was used in which participants performed aiming movements of either short or long duration to either a near or a far target position. Precues provided either no advance information or partial information about extent or duration or fully specified the aiming movement. Reaction time (RT) decreased and late Contingent Negative Variation (CNV) amplitude increased with the amount of advance information. In contrast to predictions of the GMP view, the extent precue led to faster responses and larger CNV amplitude than the duration precue. We conclude that late CNV amplitude reflects independent parameter specification processes at an abstract level at which GMP's motor programming constraints do not apply.

Original languageEnglish
Pages (from-to)539-550
Number of pages12
JournalPsychophysiology
Volume46
Issue number3
Early online date23 Mar 2009
DOIs
Publication statusPublished - May 2009

Keywords

  • Aiming movement
  • Contingent Negative Variation
  • ERP
  • Generalized Motor Program
  • Movement planning
  • Response precuing
  • CHOICE REACTION-TIME
  • BRAIN POTENTIALS
  • UNEXPECTED MOVEMENTS
  • CURRENT-DENSITY
  • SCHEMA THEORY
  • MOTOR
  • DIRECTION
  • FORCE
  • HAND
  • SPECIFICATION

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