Table 1.

Subject demographics and behavioral performance on the CPT task.

	Patients	Controls	p value
Demographics
N	26	22
Age (y)	12 ± 4	12 ± 3	NS
gender (f/m)	15/11	13/9	NS
handedness (r/l)	21/5	20/2	NS
child IQ	105 ± 12	110 ± 15	NS
parent IQ	109 ± 12	109 ± 18	NS
Hollingshead	48 ± 11	52 ± 10	NS
CPT performance
omission rate (%)	5.1 ± 5.1	2.1 ± 3.4	0.021
comission rate (%)	2.3 ± 5.1	1.1 ± 1.3	NS
mean reaction time (ms)	513 ± 55	461 ± 75	0.010
st. dev. reaction time (ms)	106 ± 24	86 ± 24	0.007
beta	4.4 ± 4.5	2.4 ± 3.6	NS
d-prime	4.2 ± 0.7	4.7 ± 0.8	0.017

All values are mean ± standard deviation.