Biological functions of male mice songs平成 25年 4月 25 日現在

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In this study, we demonstrated that 1) we used the two-choice test to determine the song preference of female mice by assessing the time engaged in searching behavior towards played-back songs. We determined that female mice can discriminate among male song characteristics and that females innately prefer songs from strains that are different from their parents. 2) this preference was reversed by cross-fostering and disappeared by fatherless rearing conditions, indicating that the preference was learned or could be modified by social experience with their fathers. 3) this preference was controlled under estrogens. 4) there was a positive correlation between emission number of songs of males and giving birth of females in pairs. 5) the preference identified in this study was observed when females were exposed to soiled male bedding or the male mouse pheromone ESP1, which we previously reported enhanced female sexual receptivity (Nature 2010). This result suggests that cross-modal information processing from both acoustic and olfactory signals may influence mate preference in mice.