Table 1.

Subject characteristics

	ADHD patients (n = 16)	Controls (n = 16)	F-value	P-value
Age, years	30.3 (7.4)	28.9 (6.0)	0.3	0.57
NART	112.0 (9.2)	115.7 (4.4)	2.1	0.16
Adult Self Report Scale
Total	54.1 (7.9)	25.9 (6.7)	68.4	<0.001
Inattention	28.1 (4.8)	14.5 (3.6)	48.3	<0.001
Hyperactivity	26.1 (4.8)	11.4 (4.8)	43.1	<0.001
RVP performance on placebo
A’	0.92 (0.05)	0.97 (0.03)	9.9	0.004
Mean latency, ms	424 (59)	373 (40)	3.0	0.09

Values are mean (SD).

NART = National Adult Reading Test.

Group comparisons were carried out using ANOVAs, significant P-values (<0.05) are in bold.