Parentese Elicits Infant Speech-Like Vocalizations in Typically Developing and Autistic Infants

IF 2 2区心理学 Q3 PSYCHOLOGY, DEVELOPMENTAL

Infancy Pub Date : 2025-05-07 DOI:10.1111/infa.70022

Pumpki Lei Su, Gordon Ramsay, Edina R. Bene, Hyunjoo Yoo, Helen L. Long, Cheryl Klaiman, Stormi L. Pulver, Shana Richardson, Moira L. Pileggi, Natalie Brane, D. Kimbrough Oller

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引用次数: 0

Abstract

Caregivers across many cultures modify their speech when interacting with infants or young children. This type of speech, commonly known as “parentese”, is characterized by greater pitch variations, longer duration, and louder volume compared to speech directed to adults. Parentese has been found to facilitate language learning. It has been proposed that parentese may benefit early language development because its exaggerated prosody encourages infants to interact with caregivers. We tested this hypothesis by investigating if parentese temporally elicits infant speech-like vocalization in typically developing (TD) and in autistic infants using sequential analysis. We compared caregiver-child vocal contingencies coded from 847 days-long recordings of 103 TD infants and 44 infants with a confirmed diagnosis of autism spectrum disorder (ASD) at 3 years. Findings revealed that infants were more likely to produce a speech-like vocalization following an adult utterance directed to them in parentese compared to an adult utterance directed to them in adult register. Additionally, the strength of the sequential association between parentese or adult register and infant speech-like vocalization did not differ across diagnostic groups. These findings support the notion that parentese may facilitate language learning via encouraging infants to respond and interact with their conversation partner.

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典型发育和自闭症婴儿的父母语引出婴儿言语样发声

在许多文化中，照顾者在与婴儿或幼儿互动时都会修改他们的语言。这种类型的言语，通常被称为“父母语”，与针对成年人的言语相比，其特点是音调变化更大，持续时间更长，音量更大。人们发现父母语有助于语言学习。有人提出，父母语可能有利于早期语言发展，因为其夸张的韵律鼓励婴儿与照顾者互动。我们通过使用序列分析来调查父母语是否会暂时引发正常发育婴儿（TD）和自闭症婴儿的类语言发声，从而验证了这一假设。我们比较了103名TD婴儿和44名确诊为自闭症谱系障碍（ASD）的3岁婴儿的847天的录音编码的照顾者-儿童语音意外事件。研究结果显示，与成人语相比，婴儿更有可能在父母语中听到成人话语后发出类似于说话的声音。此外，在不同的诊断组中，父母语或成人语域与婴儿类言语发声之间的顺序关联强度没有差异。这些发现支持了这样一种观点，即父母语可以通过鼓励婴儿回应和与他们的对话伙伴互动来促进语言学习。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Infancy PSYCHOLOGY, DEVELOPMENTAL-

CiteScore

4.00

自引率

7.70%

发文量

期刊介绍： Infancy, the official journal of the International Society on Infant Studies, emphasizes the highest quality original research on normal and aberrant infant development during the first two years. Both human and animal research are included. In addition to regular length research articles and brief reports (3000-word maximum), the journal includes solicited target articles along with a series of commentaries; debates, in which different theoretical positions are presented along with a series of commentaries; and thematic collections, a group of three to five reports or summaries of research on the same issue, conducted independently at different laboratories, with invited commentaries.