Figure 1From: Reversal of TMS-induced motor twitch by training is associated with a reduction in excitability of the antagonist muscle(a) Two degree-of-freedom optical goniometer fixed to the dorsum of the wrist to measure deflection produced by TMS-induced twitch in the sagittal and coronal plane; (b) An example of goniometer trace as seen in the signal output for sagittal plane.Back to article page