scholarly journals Corticospinal facilitation of hand muscles during voluntary movement in the conscious monkey.

1986 ◽  
Vol 381 (1) ◽  
pp. 497-527 ◽  
Author(s):  
R N Lemon ◽  
G W Mantel ◽  
R B Muir
Keyword(s):  
Voluntary Movement ◽  
Hand Muscles

Three-dimensional localization of SMA activity preceding voluntary movement

1991 ◽  
Vol 87 (3) ◽  
Author(s):  
W. Lang ◽  
D. Cheyne ◽  
R. Kristeva ◽  
R. Beisteiner ◽  
G. Lindinger ◽  
...  
Keyword(s):  
Voluntary Movement ◽  
Three Dimensional

Effects of endodontic instrument handle diameter on electromyographic activity of forearm and hand muscles

2001 ◽  
Vol 34 (2) ◽  
pp. 100-106 ◽  
Author(s):  
T. Ozawa ◽  
M. Nakano ◽  
H. Sugimura ◽  
H. Kurayama ◽  
K. Tahata ◽  
...  
Keyword(s):  
Electromyographic Activity ◽  
Hand Muscles

Simulating mechanical consequences of voluntary movement upon whole-body equilibrium: the arm-raising paradigm revisited

2001 ◽  
Vol 85 (1) ◽  
pp. 39-49 ◽  
Author(s):  
Thierry Pozzo ◽  
Mourad Ouamer ◽  
Christian Gentil
Keyword(s):  
Voluntary Movement ◽  
Whole Body

Intracortical Inhibition During Volitional Inhibition of Prepared Action

2006 ◽  
Vol 95 (6) ◽  
pp. 3371-3383 ◽  
Author(s):  
James P. Coxon ◽  
Cathy M. Stinear ◽  
Winston D. Byblow
Keyword(s):  
Primary Motor Cortex ◽  
Motor Evoked Potentials ◽  
Short Interval ◽  
Intracortical Inhibition ◽  
Corticomotor Excitability ◽  
Hand Muscles ◽  
Cortical Level ◽  
A Site ◽  
Intrinsic Hand Muscles ◽  
Inhibitory Networks

Volitional inhibition is the voluntary prevention of a prepared movement. Here we ask whether primary motor cortex (M1) is a site of convergence of cortical activity associated with movement preparation and volitional inhibition. Volitional inhibition was studied by presenting a stop signal before execution of an anticipated response that requires a key lift to intercept a revolving dial. Motor evoked potentials (MEPs) were elicited in intrinsic hand muscles by transcranial magnetic stimulation (TMS) to assess corticomotor excitability and short interval intracortical inhibition (sICI) during task performance. The closer the stop cue was presented to the anticipated response, the harder it was for subjects to inhibit their response. Corticomotor pathway excitability was temporally modulated during volitional inhibition. Using subthreshold TMS, corticomotor excitability was reduced for Stop trials relative to Go trials from 140 ms after the cue. sICI was significantly greater for Stop trials compared with Go trials at a time that preceded the onset of muscle activity associated with the anticipated response. These results provide evidence that volitional inhibition is exerted at a cortical level and that inhibitory networks within M1 contribute to volitional inhibition of prepared action.

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