Premanifest (n=3)	Mild (n=15)	Moderate (n=6)	Severe (n=3)	All HD (n=27)
Age (yrs)	32.7 (2.5)	49.4 (9.9)	46.7 (14.6)	45.0 (8.9)	46.4 (11.3)
Gender (F:M)	2:1	2:3	1:1	0:3	11:16
Duration (yrs)	14 (4) to onset	5.3 (4.2)	7.3 (3.1)	14.0 (7.2)	6.9 (5.1)
CAG repeat length	43.67 (1.16)	43.87 (3.18)	46.60 (5.03)	46.67 (4.04)	44.69 (3.59)
Concomitant Medication	0	53%	67%	67%	52%
TFC	13 (0)	11.9 (0.7)	8.0 (1.3)	5.3 (1.2)	10.4 (2.7)
TMS	0.3 (0.6)	27 (7.8)	55.3 (13.7)	40.0 (13.7)	31.8 (18.6)
MMSE	29.7 (.58)	27.9 (2.2)	25.5 (5.8)	25.5 (5.0)	27.3 (3.6)
Verbal Fluency	49.7 (21.0)	33.2 (12.7)	18.3 (9.2)	20.3 (8.5)	30.2 (15.4)
Digit symbol	51.0 (10.1)	29.3 (10.1)	22.3 (8.5)	19.3 (2.9)	29.0 (12.5)
Stroop Color	71.3 (22.7)	49.9 (16.1)	38.3 (11.1)	28.0(5.7)	47.9 (18.4)
Stroop Word	86.0 (15.1)	67.7 (20.5)	50.3 (13.3)	35.0 (7.1)	63.1 (21.7)
Stroop Interference	40.0 (14.0)	31.4 (7.8)	21.5 (7.0)	17.0 (5.7)	28.9 (10.2)