Table 2.

Average duration (in seconds) of each behavior during 10 min session recorded during final treatment week^a

	AM		PM
Behavior	Vehicle	Letrozole	Vehicle	Letrozole
Agitated locomotion*	0.86 ± 0.41	6.16 ± 2.02	2.57 ± 0.43	0.58 ± 0.20
Inactive alert*	220.54 ± 51.89	291.98 ± 62.58	261.38 ± 59.95	271.02 ± 53.87
Gouge	5.28 ± 3.66	0.21 ± 0.43	0.58 ± 0.37	0.79 ± 0.79
Scentmark	0.78 ± 0.54	0.13 ± 0.13	0	0
Piloerection	0	0.08 ± 0.08	0.40 ± 0.40	0
Calm locomotion	16.88 ± 4.25	11.11 ± 3.01	11.16 ± 2.86	13.88 ± 4.19
Inactive rest	65.06 ± 45.67	16.37 ± 10.78	13.18 ± 6.46	47.06 ± 16.04

^aValues are mean ± SEM. Letrozole-treated marmosets spent more time in agitated locomotion than those treated with Vehicle in the morning (*p = 0.043). Males treated with letrozole spent more time in inactive alert than Vehicle-treated males in the evening (*p = 0.044).