GENETIC AND EXPERIENTIAL INFLUENCES ON THE DEVELOPMENT OF PRIMATE VOCAL BEHAVIOR

这个项目目前关注的是声乐方面的性别差异。 成人期和发展期的沟通，以及 个人获得成人发声技能的经验。主修 今年的调查结果是：1.婴幼儿常见绒猴的呼叫率 社会分离的背景表明，从出生起就出现了系统性的下降 至3个月，然后在随后的每月评估中稳定下来。 同龄婴儿在家中发声行为的比较 蜂群房间，并与蜂群的近距离听觉输入分开 说明新生儿叫声较少，年龄较大(4-6个月)的婴儿叫声较少 更多的是，当他们与家人有近距离的听觉接触时， 其他熟悉的相似之处。2.成年男性的发声行为 生活在同性社会群体中的松鼠猴子在数量上 第一次评估。男性参与“对话” 以前被认为是专门针对女性的 属性。然而，对话交流在中国的发生率 成年雄性明显少于成年雌性。我们 目前将这种性别差异解释为可归因于，至少在 第二部分，行为倾向的早期发展差异 在男婴和女婴之间。

This project is currently focusing on gender differences in vocal communication in adulthood and during development, and on the role of individual experience in the acquisition of adult vocal skills. Major findings this year were: 1. Calling rate of infant common marmosets in the context of social separation shows a systematic decline from birth to 3 months, then stabilizes over subsequent monthly assessments. Comparison of vocal behavior in age-matched infants tested in their home colony room and separated from close-range auditory input from the colony indicates that neonates call less, and older (4-6 month) infants call more, when they are in close audible contact with family members and other familiar conspecifics. 2. The vocal behavior of adult male squirrel monkeys living in same-sex social groups was quantitatively assessed for the first time. Males engage in "conversational communication," previously considered to be an exclusively female attribute. However, the incidence of conversational communication in adult males is significantly less than it is in adult females. We currently interpret this gender difference as attributable, at least in part, to early developmental differences in behavioral predispositions between male and female infants.