TABLE 1.

Sociodemographic and clinical characteristics of study participants.

	Control	Manifest	Pre‐manifest
N a	35	25	22
Sex (F/M)	18/17	14/11	18/4
Age (years)	44.00 ± 11	50.80 ± 9.39	36.64 ± 8.7
Education (years)	12.74 ± 2.7	11.24 ± 3.27	13.72 ± 2.81; N = 22
UHDRS‐TMS	–	21.52 ± 12.58; N = 25	1.52 ± 3.0; N = 21
CAP	–	113.02 ± 20.71	78.71 ± 14.57
DD (impulsivity)	0.013 ± 0.015; N = 33	0.029 ± 0.035; N = 17	0.021 ± 0.031; N = 18
SR	6.75 ± 2.93; N = 33	6.42 ± 3.40; N = 24	6.52 ± 2.84; N = 19
SP	9.85 ± 5.57; N = 34	11.83 ± 5.82; N = 24	10.16 ± 7.16; N = 19

Data presented as mean ± standard deviation.

^a Number of participants listed in individual cells when differing from this number for each group.

Abbreviations: CAG, cytosine–adenine–guanine; CAP, standardized CAG–Age Product; DD, delay discounting, the overall k from Spanish version of the original Kirby Delay‐Discounting Rate Monetary Choice Questionnaire; f, females; m, males; N, number of participants; SP, sensitivity to punishment from the Spanish version of the Sensitivity to Punishment and Sensitivity to Reward Questionnaire; SR, sensitivity to reward from the Spanish version of the Sensitivity to Punishment and Sensitivity to Reward Questionnaire; UHDRS‐TMS, Unified Huntington's Disease Rating Scale total motor score (Huntington Study Group, 1996).