Table 2.

Results of regression of Eq. 6 to binding potentials (Fig. 2)

Regions	Ventral striatum	Total putamen	Left putamen	Right putamen
Degrees of freedom	15	15	15	15
BPND(Z) (Z = 20)	2.4 ± 0.070	3.1 ± 0.062	3.1 ± 0.062	3.1 ± 0.074
k1	−0.021 ± 0.0023	−0.019 ± 0.0020	−0.019 ± 0.0020	−0.019 ± 0.0024
k2	0.21 ± 0.20	0.12 ± 0.066	0.11 ± 0.058	0.14 ± 0.093
R2	0.35	0.42	0.38	0.39
Absolute sum of squares	0.67	0.51	0.52	0.73
Sy.x	0.21	0.18	0.19	0.22
Normality of residuals
D'Agostino and Pearson omnibus K2	1.0	3.5	0.42	1.5
P value	0.6017	0.1716	0.8115	0.4637
Runs test
Points above curve	9	9	10	10
Points below curve	9	9	8	8
Number of runs	8	10	8	11
P value (runs test)	0.2380	0.6008	0.2514	0.7822
Deviation from model	Not significant	Not significant	Not significant	Not significant
Covariance matrix
BPND(Z) and k1	−0.65	−0.65	−0.65	−0.66
BPND(Z) and k2	0.45	0.48	0.49	0.48
k1 and k2	−0.85	−0.89	−0.89	−0.88