a trend toward significancep = .116
In the 17 subjects undergoing PET scans with both [ 11 C]raclopride and [ 18 F]FE‐PE2I, significant positive correlations were found between the BP ND values of [ 11 C]raclopride and the eigenvariates for the executive ( p = .003, r = .67) and sensorimotor ( p = .007, r = .62) subregions of the striatum, respectively, while a correlation between these parameters for the limbic striatum showed a trend toward significance ( p = .116, r = .40) (Figure 2 ).