Skip to main content
. Author manuscript; available in PMC: 2009 Mar 5.
Published in final edited form as: Behav Brain Res. 2007 Oct 7;187(2):371–378. doi: 10.1016/j.bbr.2007.09.034

Figure 2.

Figure 2

Vocalizations during the Resident-Intruder test. Number of ultrasonic vocalizations (USVs) emitted by resident female mice (four months of age) when exposed to a C57BL/6J adult female intruder. A) Avpr1b −/− emitted significantly fewer USVs in comparison to Avpr1b +/+ (*p<.05). B) Avpr1b −/− emitted fewer calls of short, medium and long durations (*p<.05). C) Avpr1b −/− emitted calls with lower peak frequencies than Avpr1b +/+ (**p <.01). D) Genotypes showed similar amounts of time in social investigation by residents toward intruders. Data for number of USVs (panel 2A) are expressed as square root mean ± SEM. In the graphs 2B, C and D, data are expressed as mean ± SEM. Avpr1b +/+ (n = 10); Avpr1b +/− (n = 11); Avpr1b −/− (n = 11).