Figure 4.

Swimming trajectories of rats in each group. A1: Swimming trajectories of juvenile-experimental subgroup; A2: Swimming trajectories of juvenile-solvent control subgroup; A3: Swimming trajectories of juvenile-blank control subgroup; B1: Swimming trajectories of adult-experimental subgroup; B2: Swimming trajectories of adult-solvent control subgroup; B3: Swimming trajectories of adult-blank control subgroup; C1: Swimming trajectories of elderly-experimental subgroup; C2: Swimming trajectories of elderly-solvent control subgroup; C3: Swimming trajectories of elderly-blank control subgroup.