Table 1.

Demographic information and behavioral data of DAT1 and COMT genotype groups

	DAT1 VNTR		COMT Val108/158Met
	10/10	9/9; 9/10	Val/Val	Val/Met	Met/Met
n	20	17	17	17	15
Age	23.1 ± 3.0	22.1 ± 3.0	23.1 ± 3.1	22.9 ± 3.2	22.3 ± 2.7
M/F	5/15	4/13	4/13	5/14	7/8
Years of education	15.9 ± 2.9	14.9 ± 2.4	15.8 ± 3.0	15.8 ± 2.5	14.8 ± 1.9
Deep hits	0.36 ± 0.104	0.34 ± 0.114	0.36 ± 0.121	0.38 ± 0.101	0.34 ± 0.088
RT (deep hits)	1409 ± 262	1500 ± 160	1425 ± 221	1494 ± 271	1423 ± 227
Deep misses	0.62 ± 0.102	0.63 ± 0.112	0.61 ± 0.115	0.60 ± 0.099	0.64 ± 0.085
RT (deep misses)	1431 ± 250	1504 ± 182	1434 ± 230	1514 ± 258	1437 ± 227
Shallow hits	0.27 ± 120	0.26 ± 0.118	0.27 ± 0.107	0.29 ± 0.122	0.24 ± 0.097
RT (shallow hits)	1386 ± 271	1372 ± 176	1327 ± 253	1434 ± 222	1382 ± 245
Shallow misses	0.72 ± 0.129	0.73 ± 0.118	0.73 ± 0.120	0.70 ± 0.124	0.74 ± 0.096
RT (shallow misses)	1364 ± 269	1376 ± 172	1322 ± 235	1429 ± 240	1364 ± 230

Relative proportions of event types are given; differences to 1.0 result from unscorable items (e.g., ambiguous overt responses). n, Number of subjects; M/F, male/female; RT, reaction time (in milliseconds).