Panel (A) depicts mean (± standard error of the mean) cortical lesion volume (mm3) at 21 days after traumatic brain injury (TBI). No significant differences were revealed among the groups, regardless of treatment. (B–E) Average sized lesions at the level of the dorsal hippocampus for the TBI + STD + VEH, TBI + STD + GAL (1 mg/kg), TBI + STD + GAL (2 mg/kg), and TBI + STD + GAL (3 mg/kg) groups, respectively. STD, standard; VEH, vehicle; GAL, galantamine.