Table 1.

The clinical and demographic particulars of the two patients studied.

	Age/Sex	Handedness	Diagnosis	Medication	Synkinesia
Patient 1	64/F	Right	Essential tremor since age 20 (hands)	Trazodone 300 mg daily Zoloft 200 mg daily Reglan 40 mg daily	Voluntary movement of the right hand caused involuntary movement of the right foot. Voluntary movements of the feet and the left hand did not elicit synkinesia. Mental rehearsal of right hand movement did not produce concurrent right foot movement.
Patient 2	61/M	Left	Parkinson’s disease for 7 years	Sinemet 25/100 mg tid	Voluntary movements of either hand produced involuntary movements in the ipsilateral foot. This effect was most pronounced on the left side. Voluntary movements of the feet did not elicit feet-hand synkinesia. Mental rehearsal of the left hand movement did not produce hand-foot synkinesia