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. Author manuscript; available in PMC: 2011 May 1.
Published in final edited form as: Biol Psychiatry. 2009 Dec 24;67(9):864–871. doi: 10.1016/j.biopsych.2009.10.018

Figure 3.

Figure 3

Ultrasonic vocalizations (USVs) in male C57BL/6J and 129S1/SVImJ mice sniffing water or female urine. Different strains of manipulation-naive male mice (C57BL/6J; 129S1/SVImJ) underwent the female urine sniffing test paradigm. Male mice and rats were introduced for 3 min to a cotton-tipped applicator dipped in water (as a control). After 45 min, they were introduced for 3 min to a cotton-tipped applicator dipped into estrus female urine from the same strain. All male mice displayed significantly more USVs during exposure to estrus female urine than water (*p < .05; n = 12–14).