Comparison of neuronal activity in the supplementary motor area and primary motor cortex

Jun Tanji, Hajime Mushiake

Research output: Contribution to journalArticlepeer-review

67 Citations (Scopus)

Abstract

Neuronal activity in the supplementary motor area (SMA) and primary motor cortex (MI) have been compared in many experiments during performance of many different motor tasks. On one hand, the activity in both areas may appear similar, especially when the motor task is simple. On the other hand, if the motor tasks are more demanding, neuronal activity in the SMA exhibits a variety of complex relationship to many different aspects of motor behavior, while the activity in MI is mostly related to execution of motor task itself. Of particular interest is the neuronal activity in the SMA during preparation and execution of motor tasks when no external cues for the retrieval of appropriate motor act is available. Temporal sequencing of multiple movements is a typical example of the kind of motor task that requires profound activity in the SMA.

Original languageEnglish
Pages (from-to)143-150
Number of pages8
JournalCognitive Brain Research
Volume3
Issue number2
DOIs
Publication statusPublished - 1996 Mar

Keywords

  • Motor preparation
  • Motor sequence
  • Pre-SMA
  • Primary motor cortex (MI)
  • Subhuman primate
  • Supplementary motor area (SMA)

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Cognitive Neuroscience
  • Behavioral Neuroscience

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