Sequential activity in human motor areas during a delayed cued finger movement task studied by time-resolved fMRI

Wolfgang Richter, Peter M. Andersen, Apostolos P Georgopoulos, Seong Gi Kim

Research output: Contribution to journalArticlepeer-review

125 Scopus citations

Abstract

Activity in the human primary motor cortex, the premotor cortex and the supplementary motor area during a delayed cued finger movement task was measured by time-resolved functional magnetic resonance imaging. Activity during movement preparation can be resolved from activity during movement execution in a single trial. All three areas were active during both movement preparation and movement execution. Activity in the primary motor cortex was considerably weaker during movement preparation than during movement execution; in the premotor cortex and the supplementary motor area, activity was of similar intensity during both periods. These observations are consistent with results from single neuronal recording studies in primates.

Original languageEnglish (US)
Pages (from-to)1257-1261
Number of pages5
JournalNeuroreport
Volume8
Issue number5
DOIs
StatePublished - 1997

Keywords

  • functional magnetic resonance imaging
  • functional mapping
  • sequential neural processing
  • voluntary movement

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