Figure 2.
Multilocus DRD2 SNP effects on BPND. C957T T+Ins/Ins score (alone on left, displayed in hot yellow colors) and C957T T+Ins/Ins+Taq1A A2 dose score (center, displayed in cool colors) effects on Fallypride BPND are displayed as T-scores. Beyond the striatum, the C957T T+Ins/Ins multilocus score affects BPND in midbrain/thalamus and midbrain/pons (evident in coronal and saggital slices). The addition of A2 dosage information does not alter the multilocus score's relationship to striatal and thalamic BPND appreciatively (overlap of both multilocus effects in white/pink). Taq1A A2 dose also has no effect on the deeper midbrain/pons genetic effect observed with the C957T+Ins/Ins multilocus score (see saggital slice). Data are displayed using a P<0.005, uncorrected threshold. BPND, nondisplaceable binding potential; SNP, single-nucleotide polymorphism.