Proefschrift_Holstein

Reward modulation of cognitive function: adult ADHD

Table 4.6 Self-reported symptom severity ADHD ON

ADHD OFF

Statistics

DAT1 effect

9R carriers

9R carriers

Drug effect

Drug * DAT1

10R/10R

10R/10R

Symptom severity

t(22) = 5.92; p < .001 t(22) = 5.15; p < .001

F(1,21) = 3.47; p > .05

2.67 (0.66)

3.18 (1.11)

7.25 (0.46)

5.64 (0.83)

ns

Attentive

2.67 (0.66)

2.36 (0.75)

5.33 (0.68)

5.09 (0.72)

Hyperactive

ns

ns

10R/10R = 10R homozygotes

93