Table 1.

Demographic and clinical data.

	HDP	HDR	HDP vs. CTR	HDP– CTR	HDR– CTR
N (female/male)	18 (6/12)	19 (13/6)	NS	18 (6/12)	NS
				18 (12/6)
Handedness (right/left)	17/18	19/19	NS	18/18	NS
				18/18
Age (mean ± SD)	43 ± 10	29 ± 9	NS	43 ± 10	NS
				29 ± 9
Level of education (mean ± SD)	9.5 ± 5	11.5 ± 2.7	NS	9.5 ± 5	NS
				11.5 ± 2.7
Disease duration years (mean ± SD)	3.55 ± 3.014
Onset disease years (mean ± SD)	39.72 ± 8.22

HD, HDR, and control groups.