Table 1.

Goodness of fit of quadratic regression to binding potentials versus Zuckerman score

Region	Residual SE on 15 degrees of freedom	Multiple R2	Adjusted R2	F statistic on 2 and 15 degrees of freedom	P value
Ventral striatum	0.2107	0.3468	0.2597	3.982	0.041
Caudate, total	0.2927	0.2578	0.1588	2.605	0.11
Caudate, left	0.2971	0.1413	0.02677	1.234	0.32
Caudate, right	0.3242	0.327	0.2372	3.644	0.051
Putamen, total	0.185	0.4204	0.3431	5.44	0.017
Putamen, left	0.1859	0.3833	0.3011	4.661	0.027
Putamen, right	0.2202	0.3859	0.3041	4.714	0.026