Journal article
Temporal aspects of passive movement-related corticomotor inhibition
Human Movement Science, Vol.23(3-4), pp.379-387
2004
Abstract
We have previously shown that during rhythmic passive movement of the index finger, the amplitude of the motor evoke potential (MEP) of the first dorsal interosseous muscle (FDI) as the index finger moved through mid-range adduction, is significantly reduced compared to rest [Edwards, D. J., Thickbroom, G. W., Byrnes, M. L., Ghosh, S., & Mastaglia, F. L. (2002). Reduced corticomotor excitability with passive movement: A study using Transcranial Magnetic Stimulation. Human Movement Science 21, 533–540]. In the present study we have investigated the time-course of this phenomenon. We found that MEP amplitude was significantly reduced at the mid-range position in the first cycle of movement (50 ± 6% of resting baseline values), and did not vary across subsequent cycles (10 cycles in 50 s), but that MEP amplitude returned to baseline values within 1 s of cessation of movement. The results suggest that the pattern of afferent discharge set up by the kinematics of the movement acting at spinal or supraspinal levels underlies the inhibition observed, rather than an effect of central origin or a cumulative effect of ongoing cyclic movement.
Details
- Title
- Temporal aspects of passive movement-related corticomotor inhibition
- Authors/Creators
- D.J. Edwards (Author/Creator) - The University of Western AustraliaG.W. Thickbroom (Author/Creator) - The University of Western AustraliaM.L. Byrnes (Author/Creator) - The University of Western AustraliaS. Ghosh (Author/Creator) - The University of Western AustraliaF.L. Mastaglia (Author/Creator) - The University of Western Australia
- Publication Details
- Human Movement Science, Vol.23(3-4), pp.379-387
- Publisher
- Elsevier B.V.
- Identifiers
- 991005541061107891
- Copyright
- © 2004 Elsevier B.V.
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 1 Clinical & Life Sciences
- 1.82 Gait & Posture
- 1.82.811 Transcranial Magnetic Stimulation
- Web Of Science research areas
- Neurosciences
- Psychology
- Psychology, Experimental
- Sport Sciences
- ESI research areas
- Psychiatry/Psychology