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. Author manuscript; available in PMC: 2010 Oct 1.

Published in final edited form as: Horm Behav. 2009 Aug 3;56(4):423–428. doi: 10.1016/j.yhbeh.2009.07.011

(a) Average duration (mean +/-SEM in seconds) during a 15-minute training episode of submissive/defensive, aggressive, social and nonsocial behavior of resident aggressors towards gonadectomized males treated with cholesterol (C)(n=8), testosterone (T) (n=10), dihydrotestosterone (DHT) (n=8) and estradiol (E₂)(n=9). Analyses were run for each specific behavior; therefore, differences are compared only within one category of behavior and not between behavioral categories. Non-shared letters depict significant difference (p < 0.05) as determined by Fisher's post hoc analyses. (b) Average duration (mean +/-SEM in seconds) of submissive, aggressive, social and nonsocial behavior of experimental hamsters during a 15-minute training episode with a resident aggressor.

(a) Average duration (mean +/-SEM in seconds) during a 15-minute training episode of submissive/defensive, aggressive, social and nonsocial behavior of resident aggressors towards gonadectomized males treated with cholesterol (C)(n=8), testosterone (T) (n=10), dihydrotestosterone (DHT) (n=8) and estradiol (E₂)(n=9). Analyses were run for each specific behavior; therefore, differences are compared only within one category of behavior and not between behavioral categories. Non-shared letters depict significant difference (p < 0.05) as determined by Fisher's post hoc analyses. (b) Average duration (mean +/-SEM in seconds) of submissive, aggressive, social and nonsocial behavior of experimental hamsters during a 15-minute training episode with a resident aggressor.