Table 1

 Silent periods during mirror movements v voluntary contraction mimicking mirror movements

Pyramidal tract carrying stimuliStimulated hemisphereCondition of the target muscleSilent period (ms)
Values are mean (SD), recorded from right first dorsal interosseus.
*p<0.05.
Uncrossed corticospinal tractRightMirror movements158.4 (4.25)*
RightVoluntary contraction141.9 (5.24)
Crossed corticospinal tractLeftMirror movements145.8 (4.81)
LeftVoluntary contraction142.9 (6.38)