Figure 1

Scheme of rat experiments for FDG PET imaging and intervening behavioral tests. The overall scheme of the animal experiment was composed of two times of PET imaging at 4 weeks and 6 weeks of age and three behavioral tests, i.e., marble-burying test, open field test, and delay discounting task. Phenotypically positive ADHD-model rats were chosen later, with the behavioral tests blinded to the imaging results.