Phase-Specific Vocalizations of Male Mice at the Initial Encounter during the Courtship Sequence.
Phase-Specific Vocalizations of Male Mice at the Initial Encounter during the Courtship Sequence.
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DOI：
10.1371/journal.pone.0147102
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发表时间：
2016
期刊：
影响因子：
3.7
通讯作者：
Okanoya K
中科院分区：
文献类型：
--
作者：
Matsumoto YK;Okanoya K
老鼠能发出不同音节的超声波。在社会交往中可以观察到发声。特别是，雄性在求偶期间会发出大量的音节。先前的研究表明，鸣叫声会根据性行为而变化，这表明雄性鸣叫声的变化取决于求爱顺序的阶段。为了研究这一过程，我们记录了大量的老鼠在雄性和雌性互动时的发声，并将这些声音从声学上分为12种声音类型。我们发现，雄性在互动的第一分钟主要发出短音节，在随后的阶段发出更多的长音节，在攀登过程中主要发出和声。这些与环境和时间相关的发声变化表明，老鼠在求偶期间的发声交流至少包括三个阶段，这意味着每种发声类型在求偶序列的一个阶段都有特定的作用。我们的研究结果表明，记录足够长的时间并考虑求偶阶段可以在未来的研究中更深入地了解发声在小鼠求偶行为中的作用。
Mice produce ultrasonic vocalizations featuring a variety of syllables. Vocalizations are observed during social interactions. In particular, males produce numerous syllables during courtship. Previous studies have shown that vocalizations change according to sexual behavior, suggesting that males vary their vocalizations depending on the phase of the courtship sequence. To examine this process, we recorded large sets of mouse vocalizations during male–female interactions and acoustically categorized these sounds into 12 vocal types. We found that males emitted predominantly short syllables during the first minute of interaction, more long syllables in the later phases, and mainly harmonic sounds during mounting. These context- and time-dependent changes in vocalization indicate that vocal communication during courtship in mice consists of at least three stages and imply that each vocalization type has a specific role in a phase of the courtship sequence. Our findings suggest that recording for a sufficiently long time and taking the phase of courtship into consideration could provide more insights into the role of vocalization in mouse courtship behavior in future study.