The other two groups received identical treatments with the exception that they received testosterone and the oil vehicle (TTTO, n = 12; OTTT, n = 12).
1 Although Experiment 1 revealed no significant differences in order of conditioning for animals receiving testosterone, drug-vehicle (TTTO) animals tended to show a smaller increase than vehicle-drug (OTTT) animals in the amount of time spent on the side of putative conditioning on the test day relative to baseline.