Table 4. Genotype - DAT measures relationships in populations.

	ROI	Population	F	df	p	ηp2
3′-UTR	Caudate	AA	4.15	5,26	<0.01*	0.4
		CE	5.67	5,44	<0.001*	0.3
	Putamen	AA	0.71	5,26	0.621	0.25
		CE	3.17	5,44	0.015*	0.2
	Vent.Str	AA	0.95	5,22	0.474	0.1
		CE	3.18	5,40	0.015*	0.26
Intron8	Caudate	AA	3.50	5,28	0.015*	0.4
		CE	3.42	4,47	0.015*	0.2
	Putamen	AA	0.44	5,28	0.817	0.08
		CE	1.81	4,47	0.142	0.13
	Vent. Str	AA	0.88	5,24	0.513	0.19
		CE	2.42	4,46	0.061	0.17

Abbreviations: ROI – region of interest; Vent. Str. – ventral striatum; AA- African-Americans, CE- Caucasians,

Significant values are indicated with *.