Representative swim paths showing the mean path length (i.e., distance traveled) on training days 1 and 5 (i.e., post-operative days 14 and 18) in the Morris water maze (•=location of the platform in the southwest quadrant; Δ=mean change in swimming distance from training day 1 to day 5). Note that the TBI + BUS (0.3 mg/kg) group had a larger decrease in distance traveled than the other TBI groups (TBI, traumatic brain injury; BUS, buspirone; VEH, vehicle).