Mirrored EMG activity during unimanual rhythmic movements.
We studied instances of mirror movements--in the form of coherent EMG activity of the muscles in the arm not intended to move--during the performance of a unimanual rhythmic task in healthy adults. Epochs of involuntary muscle activity were detected and analyzed using time-resolved spectral methods. The observed frequency and phase locking between EMG patterns derived from homologous extensor muscles indicated the presence of neural cross-talk, which is relevant to the study of interlimb coordination.
Ridderikhoff
Arne
A
Institute for Fundamental and Clinical Human Movement Sciences (IFKB), Faculty of Human Movement Sciences, Vrije Universiteit, Amsterdam, The Netherlands. a.ridderikhoff@fbw.vu.nl
Daffertshofer
Andreas
A
Peper
C Lieke E
CL
Beek
Peter J
PJ
D000293:Adolescent; D000328:Adult; D001132:Arm / Q000502:physiology*; D004576:Electromyography; D005260:Female; D007839:Functional Laterality; D006801:Humans; D008297:Male; D009068:Movement / Q000502:physiology*; D018482:Muscle, Skeletal / Q000502:physiology*