Women's voices reportedly sound more attractive during the fertile days compared to the non-fertile days of their menstrual cycle. Here we investigated whether the speech content modulates the cyclic changes in women's voices. We asked 72 men and women to rate how interested they were in getting to know the speaker based on her voice. Forty-two naturally cycling women were recorded once during the late follicular phase (high fertility) and once during the luteal phase (low fertility) while speaking sentences of neutral and social content. Listeners were more interested in getting to know the speakers when hearing sentences with social content. Furthermore, raters were more interested in getting to know the speakers when these were recorded in the late follicular than in the luteal phase, but only in sentences with social content. Notably, levels of reproductive hormones (EP ratio) across the cycle phases did not significantly predict the preference for late follicular voices, but echoing the perceptual ratings, there was a significant EP ratio x speech content interaction. Phonetic analyses of mean fundamental frequency (F0) revealed a main effect of menstrual cycle phase and speech content but no interaction. Employing an action-oriented task, the present study extends findings of cycle-dependent voice changes by emphasising that speech content critically modulates fertility effects.

中文翻译：

---

内容很重要：对女性声音的周期性影响取决于社会背景。

据报道，与月经周期的非生育期相比，在生育期女性的声音听起来更具吸引力。在这里，我们调查了语音内容是否调节了女性声音的周期性变化。我们询问了72位男女，根据他们的声音来评估他们对结识说话者的兴趣。在卵泡期后期（高生育力）和黄体期（低生育力）期间，有42名自然骑自行车的妇女被记录下来，同时讲中性和社交内容。聆听者在听到带有社交内容的句子时会更感兴趣地结识说话者。此外，评价者对在卵泡晚期记录的说话者比在黄体期更了解认识说话者，但只对具有社交内容的句子感兴趣。值得注意的是 在整个周期阶段中，生殖激素的水平（EP比）没有显着预测晚期卵泡语音的偏好，但呼应感知等级，存在显着的EP比x语音含量相互作用。平均基频（F0）的语音分析显示了月经周期阶段和言语内容的主要影响，但没有相互作用。本研究采用面向行动的任务，通过强调语音内容关键地调节生育力，扩展了与周期有关的语音变化的发现。平均基频（F0）的语音分析显示了月经周期阶段和言语内容的主要影响，但没有相互作用。本研究采用面向行动的任务，通过强调语音内容关键地调节生育力，扩展了与周期有关的语音变化的发现。平均基频（F0）的语音分析显示了月经周期阶段和言语内容的主要影响，但没有相互作用。本研究采用面向行动的任务，通过强调语音内容关键地调节生育力，扩展了与周期有关的语音变化的发现。