期刊
JOURNAL OF CHILD LANGUAGE
卷 36, 期 4, 页码 909-922出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S030500090800929X
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资金
- NICHD NIH HHS [R01 HD037954, R01 HD037954-08] Funding Source: Medline
Acoustic-phonetic exaggeration of infant-directed speech (IDS) is well documented, but few studies address whether these features are modified with a child's age. Mandarin-speaking mothers were recorded while addressing an adult and their child at two ages (0;7-1;0 and 5;0) to examine the acoustic-phonetic differences between IDS and child-directed speech (CDS). CDS exhibits an exaggeration pattern resembling that of IDS-expanded vowel space, longer vowels, higher pitch and greater lexical tone differences - when compared to ADS. Longitudinal analysis demonstrated that the extent Of acoustic exaggeration Is significantly smaller in CDS than in IDS. Age-related changes in maternal speech provide Some Support for the hypothesis that mothers adjust their speech directed toward children as a function of the child's language ability.
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