Number of (A) WME’s, (B) WRE’s, and (C) RME’s performed by castrated male rats injected daily with sesame oil (Control; N = 10) or 0.500 mg testosterone propionate (0.500 mg T; N = 8) during 5-day blocks of trials over 30 days of testing on the radial arm maze. Control males committed significantly more WME’s and WRE’s during the early blocks of trials (* P < 0.05). There was no significant difference between groups for RME’s.
The difference between groups was also not significant difference between groups in (D) the latency to make the first arm choice. All data are shown as means ± SEM (N = 8/group).