RECEIVERS AND HUMAN INFANT VOCAL LEARNING

描述（申请人的摘要）：当在社会背景下观察时，早期 发声行为是一种学习工具。 通过以下活动： 通过发声和观察他人的反应，婴儿获得了 理解构成交际互动的偶然性。 这项研究的目的是阐明 接收器在人类声乐学习中的作用。 成功使用的方法 动物交流的研究，拟议的研究将解决社会 通过评估成人对回放的反应， 婴儿行为 在项目1中，婴儿行为的回放将用于 说明母亲对前语言反应的声学决定因素 发声 为了验证和扩展初步调查结果， 回放研究将集中在声乐的扰动的影响， 特色 自然和合成发声将被用来模拟 唐氏综合症婴儿发声行为的变化， 社会反应的发展差异，这可能有助于 沟通障碍 在项目2中，第二个回放系列将 评估经验对婴儿声音反应的影响。 后续研究将评估培训的有效性， 获得经验丰富的母性反应模式。 综合起来看， 这些研究探讨了交际能力的起源， 从发送者和接收者的系统，并将增加我们的知识， 构成交际互动的偶然性， 发展中的人口。

DESCRIPTION (Applicant's Abstract): When viewed in social context, early vocal behavior is an instrument of learning. Through the activity of vocalizing and observing the reactions of others, infants acquire an understanding of the contingencies that structure communicative interaction. The purpose of the proposed research is to elucidate the role of the receiver in human vocal learning. Adapting methods used successfully in studies of animal communication, the proposed research will address social contributions to vocal learning by assessing adult responses to playbacks of infant behavior. In Project 1, playbacks of infant behavior will be used to specify the acoustic determinants of maternal responses to prelinguistic vocalizations. To validate and extend the initial findings, additional playback studies will focus on the effects of perturbations of vocal characteristics. Natural and synthetic vocalizations will be used to model the changes in vocal behavior exhibited in Down syndrome infants that create differences in the development of social response which may facilitate communicative dysfuntion. In Project 2, a second playback series will assess the influence of experience on responsivity to infant sounds. Follow-up studies will assess the effectiveness of training on the acquisition of experienced maternal patterns of responding. Taken together, these studies explore the origins of communicative competence as emergent from the system of sender and receiver, and will increase our knowledge of the contingencies that frame communicative interaction in both typically-and atypically developing populations.