Visually induced activity in human frontal motor areas during simple visuomotor performance

Gregor Thut, Claude Alain Hauert, Olaf Blanke, Stéphanie Morand, Margitta Seeck, Sara L. Gonzalez, Rolando Grave De Peralta, Laurent Spinelli, Asaid Khateb, Theodor Landis, Christoph M. Michel

Research output: Contribution to journalArticlepeer-review


Visuomotor tasks elicit neuronal activity in primate motor areas at relatively short latencies. Although this early activity embodies features of visual responses (short latency, stimulus-dependency), its sensory nature has been questioned. We investigated neural correlates of visuomotor performance in human motor areas using scalp and intracranial event-related potential measures. A simple visuomanual reaction-time task evoked early potentials at 133-145ms post-stimulus which occurred much earlier than the motor potentials of the same region. The amplitude of the early potentials covaried with stimulus location and was independent of parameters of the motor response. Because of their timing, stimulus-dependency and characteristics of our behavioral task, the early potentials are suggested to reflect neuronal responses of sensory nature rather than processing related to pure motor aspects of the task. (C) 2000 Lippincott Williams and Wilkins.

Original languageEnglish
Pages (from-to)2843-2848
Number of pages6
Issue number13
StatePublished - 11 Sep 2000
Externally publishedYes


  • Human electrophysiology
  • Intracranial recordings
  • Source localization
  • Surface EPs
  • Visuomotor transformation

ASJC Scopus subject areas

  • General Neuroscience


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