Fig. 3. Mean percent difference of rates of local cerebral glucose utilization (µmol/100 g/min) of selected brain regions in the striatum and basal ganglia of monkeys 1 day (N = 4) or 30 days (N = 4) after cocaine self-administration from rates of food controls (N = 4) when assessed in a neutral environment.

Percentages were calculated by comparing individual rates in the 1 and 30 days groups to the mean of food controls. Data shown are the mean ± SEM. *p < 0.05, Student’s t test between 1 and 30 day abstinence groups. DMC, caudal precommissural dorsomedial caudate; DLC, caudal precommissural dorsolateral caudate; DPut, caudal precommissural dorsal putamen; Core, nucleus accumbens core at the level of the caudal precommissural striatum; Shell, shell of the nucleus accumbens at the level of the caudal precommissural striatum; VTA, ventral tegmental area; SNc, substantia nigra compacta.