Table 1.

Study population

Diagnosis	Patient	Age	Sites of brain lesion estimated from MRI	Other motor deficits	Duration
CBD	1	60	Mild left frontal cerebral atrophy, scattered lesions of left frontal, periventricular and pontine white matter	Mild disturbances in walking, right hand hemiparesis	2 years
	2	68	Left hemisphere cerebral atrophy, mostly involving left frontal lobe and mild atrophy of left temporal lobe	Right hand hemiparesis	5 years
	3	63	Mild left frontal atrophy	Right arm hemiparesis	4 years
Stroke	1	55	Ischemic stroke in left MCA distribution, involving left frontal lobe, inferior left parietal and temporal cortices, mildly affecting left insula and basal ganglia	Right arm hemiparesis	5 years
	2	35	Hemorrhagic stroke in left MCA distribution, involving frontal ventral white matter, temporal and parietal cortices, as well as basal ganglia	Right arm hemiparesis, shuffling gait, mild oral apraxia	3 months

Clinical profiles of the patients studied. Duration is the time interval from the clinical onset. MCA, middle cerebral artery.