Finger movement versus toe movement-related potentials: further evidence for supplementary motor area (SMA) participation prior to voluntary action

Experimental Brain Research
J BoschertL Deecke

Abstract

The cerebral potentials associated with voluntary, self-paced rapid flexions of (1) right fingers, (2) left fingers, (3) right toes, and (4) left toes were compared in the same experiment using 32 right- and left-handed subjects. The Bereitschaftspotential (BP) or readiness potential was, in the first half of the foreperiod, bilaterally symmetrical for both finger and toe movements of either side. In the later foreperiod there were differences: Finger movements showed two maxima, an early one at Cz and a late one, which was lateralized toward the contralateral precentral region. With toe movements, the maximum BP amplitude was always at Cz and not lateralized and was twice as large as with finger movements. The data are compatible with the view that two principal sources of different spatial and temporal characteristics are active in the foreperiod of a voluntary movement. The early generator is probably the supplementary motor area (SMA) on the mesial surface of the hemispheres; the later is the primary motor cortex (MI) which is lateralized for finger but not for toe movements. In lateral leads, rather remote from the mesial source, the BP for toe movements showed a small but significant ipsilateral preponderance, which is ob...Continue Reading

Citations

Jun 1, 1984·Electroencephalography and Clinical Neurophysiology·C H Brunia, W E Van den Bosch
Feb 1, 1985·Electroencephalography and Clinical Neurophysiology·C H BruniaM P Berger
Apr 1, 1986·Electroencephalography and Clinical Neurophysiology·G BarrettR Neshige
Sep 1, 1994·Electroencephalography and Clinical Neurophysiology·W KlostermannT Seyfert
Mar 1, 1995·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·G A ChiarenzaG Vasile
May 1, 1994·Neuroscience Research·J Tanji
Apr 1, 1991·Electroencephalography and Clinical Neurophysiology·M SimonettaO Rascol
Mar 1, 1996·Brain Research. Cognitive Brain Research·J Tanji, H Mushiake
Feb 1, 1988·Journal of Neurology, Neurosurgery, and Psychiatry·A W McNabbF L Mastaglia
Aug 4, 2004·Experimental Brain Research·Omar Feix do NascimentoMichael Voigt
Feb 5, 2013·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·Antonio CastroAlex Sumich
Nov 27, 2015·Neuroscience·Jessy Parokaran VargheseWilliam E McIlroy
Jun 15, 2007·The European Journal of Neuroscience·Antonio CastroGeert J M van Boxtel
Oct 1, 1983·Acta Neurologica Scandinavica·A AntervoT Tuomisto
May 27, 1999·Acta Psychologica·C H Brunia
Jun 1, 1990·Acta Psychologica·S A HackleyJ Miller
Aug 29, 2016·Revue neurologique·E Apartis, L Vercueil
Jul 8, 2017·Analytical Chemistry·Chuchu QinPurnendu K Dasgupta
Mar 26, 1999·Movement Disorders : Official Journal of the Movement Disorder Society·V G EvidenteN Joshi
Apr 11, 2001·Movement Disorders : Official Journal of the Movement Disorder Society·S R FilipovićV S Kostić
Sep 29, 2005·Neuroreport·Antonio CastroGeert J M van Boxtel
May 6, 2004·Biographical Memoirs of Fellows of the Royal Society·D R Curtis, P Andersen
Mar 14, 2020·Journal of Neurologic Physical Therapy : JNPT·Sue PetersS Jayne Garland

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