Acoustic-Lexical Characteristics of Child-Directed Speech Between 7 and 24 Months and Their Impact on Toddlers' Phonological Processing.
Acoustic-Lexical Characteristics of Child-Directed Speech Between 7 and 24 Months and Their Impact on Toddlers' Phonological Processing.
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DOI：
10.3389/fpsyg.2021.712647
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发表时间：
2021
影响因子：
3.8
通讯作者：
Newman RS
中科院分区：
文献类型：
--
作者：
Cychosz M;Edwards JR;Bernstein Ratner N;Torrington Eaton C;Newman RS
来自成人照顾者的言语输入是儿童发育结果的有力预测因素。但是，这种针对儿童的讲话的性质在儿童生命的头几个月或几年里并不是一成不变的。本研究评估了一大批7、10、18和24个月的儿童和照顾者(n=84)，以记录(1)儿童定向言语的一系列语音、语音和词汇特征在生命的头两年是如何变化的，以及(2)这些不同阶段的输入如何预测幼儿在两岁时的语音处理和词汇量。结果表明，儿童定向言语的大多数指标确实会随着儿童年龄的增长而变化，某些特征，如过度发音，实际上在24个月时达到顶峰。对于语言结果，儿童的语音处理受益于接触更长的单词(在音素中)，更多样化的单词类型，以及在输入时增强的协同发音。研究认为，输入中较长的单词可能会刺激儿童的语音工作记忆发展，而增强的协同发音同时会引入重要的亚词汇线索，并使他们接触到具有挑战性的自然语言，从而导致总体上更强的语音加工结果。
Speech-language input from adult caregivers is a strong predictor of children's developmental outcomes. But the properties of this child-directed speech are not static over the first months or years of a child's life. This study assesses a large cohort of children and caregivers (n = 84) at 7, 10, 18, and 24 months to document (1) how a battery of phonetic, phonological, and lexical characteristics of child-directed speech changes in the first 2 years of life and (2) how input at these different stages predicts toddlers' phonological processing and vocabulary size at 2 years. Results show that most measures of child-directed speech do change as children age, and certain characteristics, like hyperarticulation, actually peak at 24 months. For language outcomes, children's phonological processing benefited from exposure to longer (in phonemes) words, more diverse word types, and enhanced coarticulation in their input. It is proposed that longer words in the input may stimulate children's phonological working memory development, while heightened coarticulation simultaneously introduces important sublexical cues and exposes them to challenging, naturalistic speech, leading to overall stronger phonological processing outcomes.
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影响因子：
2.1
作者：
Erskine ME;Reidy P;Munson B;Edwards JR
通讯作者：
Edwards JR
影响因子：
2.4
作者：
Cychosz, Margaret;Edwards, Jan R.;Johnson, Keith
通讯作者：
Johnson, Keith
影响因子：
3.7
作者：
Brand, RJ;Baldwin, DA;Ashburn, LA
通讯作者：
Ashburn, LA
DOI：
10.1080/027249896392874
发表时间：
1996-02-01
期刊：
QUARTERLY JOURNAL OF EXPERIMENTAL PSYCHOLOGY SECTION A-HUMAN EXPERIMENTAL PSYCHOLOGY
影响因子：
--
作者：
Adams, AM;Gathercole, SE
通讯作者：
Gathercole, SE
影响因子：
1.5
作者：
Farabolini, Gianmatteo;Rinaldi, Pasquale;Cristia, Alejandrina
通讯作者：
Cristia, Alejandrina