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ERIC Number: EJ884653
Record Type: Journal
Publication Date: 2010-Jun
Pages: 26
Abstractor: As Provided
Reference Count: 0
ISSN: ISSN-0010-0285
Is Early Word-Form Processing Stress-Full? How Natural Variability Supports Recognition
Bortfeld, Heather; Morgan, James L.
Cognitive Psychology, v60 n4 p241-266 Jun 2010
In a series of studies, we examined how mothers naturally stress words across multiple mentions in speech to their infants and how this marking influences infants' recognition of words in fluent speech. We first collected samples of mothers' infant-directed speech using a technique that induced multiple repetitions of target words. Acoustic analyses revealed that mothers systematically alternated between emphatic and nonemphatic stress when talking to their infants. Using the headturn preference procedure, we then tested 7.5-month-old infants on their ability to detect familiarized bisyllabic words in fluent speech. Stress of target words (emphatic and nonemphatic) was systematically varied across familiarization and recognition phases of four experiments. Results indicated that, although infants generally prefer "listening" to words produced with emphatic stress, "recognition" was enhanced when the degree of emphatic stress at familiarization matched the degree of emphatic stress at recognition. (Contains 6 figures and 4 tables.)
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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