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ERIC Number: EJ1032417
Record Type: Journal
Publication Date: 2014-Jul
Pages: 22
Abstractor: As Provided
Reference Count: N/A
ISSN: ISSN-0305-0009
The Hyperarticulation Hypothesis of Infant-Directed Speech
Cristia, Alejandrina; Seidl, Amanda
Journal of Child Language, v41 n4 p913-934 Jul 2014
Typically, the point vowels [i,?,u] are acoustically more peripheral in infant-directed speech (IDS) compared to adult-directed speech (ADS). If caregivers seek to highlight lexically relevant contrasts in IDS, then two sounds that are contrastive should become more distinct, whereas two sounds that are surface realizations of the same underlying sound category should not. To test this prediction, vowels that are phonemically contrastive ([i-?] and [e?-e]), vowels that map onto the same underlying category ([ae-ae(macron)] and [e-e(macron)]), and the point vowels [i,?,u] were elicited in IDS and ADS by American English mothers of two age groups of infants (four- and eleven-month-olds). As in other work, point vowels were produced in more peripheral positions in IDS compared to ADS. However, there was little evidence of hyperarticulation per se (e.g. [i-?] was "hypo"articulated). We suggest that across-the-board lexically based hyperarticulation is not a necessary feature of IDS.
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A