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Movement-related potentials associated with bilateral simultaneous and unilateral movements recorded from human supplementary motor area

STS Instructor Authored by Thomas Collura

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Check out this Knowledge Base article from StressTherapy Solutions: Movement-related potentials associated with bilateral simultaneous and unilateral movements recorded from human supplementary motor area.

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Study at a glance

Area
QEEG, Methods & Mechanisms
Study type
Observational study
Authors
Ikeda A, Lüders HO, Shibasaki H, Collura TF, Burgess RC, Morris HH, Hamano T
Journal
Electroencephalography and Clinical Neurophysiology
Year
1995
Participants
3
Protocol
subdural movement-related potential recording

Key findings

  • Supplementary motor area showed pre-movement potentials for same-side, opposite-side and two-sided movements
  • Pre-movement activity there was similar for opposite-side and two-sided movements, smaller for same-side
  • Primary sensorimotor cortex showed little or no pre-movement activity for same-side movements
  • Very small sample of three patients

DOI 10.1016/0013-4694(95)00086-e → PubMed 7489661 →

Brain-surface electrodes in three patients being evaluated for epilepsy surgery recorded the electrical build-up before finger, thumb and foot movements made with one side, the other side, or both sides at once. The supplementary motor area produced clear pre-movement activity for every kind of movement, somewhat smaller for same-side movements. The primary sensorimotor area responded mainly before movements of the opposite side of the body.