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Perception of acoustic correlates of major phrasal units by young infants

How might young learners parse speech into linguistically relevant units? Sensitivity to prosodic markers of these segments is one possibility. Seven experiments examined infants' sensitivity to acoustic correlates of phrasal units in English. The results suggest that: (a) 9 month olds, but not...

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Published in:	Cognitive psychology 1992-04, Vol.24 (2), p.252-293
Main Authors:	Jusczyk, Peter W, Hirsh-Pasek, Kathy, Kemler Nelson, Deborah G, Kennedy, Lori J, Woodward, Amanda, Piwoz, Julie
Format:	Article
Language:	English
Subjects:	Acoustic Correlates Age Differences Attention Auditory Perception Babies Biological and medical sciences Child Development Child Language College Students Communication disorders Developmental psychology English Female Fundamental and applied biological sciences. Psychology Higher Education Humans Infant Infants Language Language Acquisition Language Development Linguistics Male Parsing Perceptions Phonetics Psychology Psychology. Psychoanalysis. Psychiatry Psychology. Psychophysiology Segmentation Skills Social research Sound Spectrography Speech Speech Acoustics Speech Perception Verbal Stimuli
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creator	Jusczyk, Peter W Hirsh-Pasek, Kathy Kemler Nelson, Deborah G Kennedy, Lori J Woodward, Amanda Piwoz, Julie
description	How might young learners parse speech into linguistically relevant units? Sensitivity to prosodic markers of these segments is one possibility. Seven experiments examined infants' sensitivity to acoustic correlates of phrasal units in English. The results suggest that: (a) 9 month olds, but not 6 month olds, are attuned to cues that differentially mark speech that is artificially segmented at linguistically COINCIDENT as opposed to NONCOINCIDENT boundaries (Experiments 1 and 2); (b) the pattern holds across both subject phrases and predicate phrases and across samples of both Child- and Adult-directed speech (Experiments 3, 4, and 7); and (c) both 9 month olds and adults show the sensitivity even when most phonetic information is removed by low-pass filtering (Experiments 5 and 6). Acoustic analyses suggest that pitch changes and in some cases durational changes are potential cues that infants might be using to make their discriminations. These findings are discussed with respect to their implications for theories of language acquisition.
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Sensitivity to prosodic markers of these segments is one possibility. Seven experiments examined infants' sensitivity to acoustic correlates of phrasal units in English. The results suggest that: (a) 9 month olds, but not 6 month olds, are attuned to cues that differentially mark speech that is artificially segmented at linguistically COINCIDENT as opposed to NONCOINCIDENT boundaries (Experiments 1 and 2); (b) the pattern holds across both subject phrases and predicate phrases and across samples of both Child- and Adult-directed speech (Experiments 3, 4, and 7); and (c) both 9 month olds and adults show the sensitivity even when most phonetic information is removed by low-pass filtering (Experiments 5 and 6). Acoustic analyses suggest that pitch changes and in some cases durational changes are potential cues that infants might be using to make their discriminations. 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source	Applied Social Sciences Index & Abstracts (ASSIA); ScienceDirect: Social Science Backfile; ERIC; Linguistics and Language Behavior Abstracts (LLBA)
subjects	Acoustic Correlates Age Differences Attention Auditory Perception Babies Biological and medical sciences Child Development Child Language College Students Communication disorders Developmental psychology English Female Fundamental and applied biological sciences. Psychology Higher Education Humans Infant Infants Language Language Acquisition Language Development Linguistics Male Parsing Perceptions Phonetics Psychology Psychology. Psychoanalysis. Psychiatry Psychology. Psychophysiology Segmentation Skills Social research Sound Spectrography Speech Speech Acoustics Speech Perception Verbal Stimuli
title	Perception of acoustic correlates of major phrasal units by young infants
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