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Young infants encode lexical stress in newly encountered words
1Department of Psychology, University of Calgary, Calgary, Alberta, Canada T2N 1N4. scurtin@ucalgary.ca
Journal of Experimental Child Psychology
|January 22, 2010
Summary
This study shows 14-month-old infants remember stress patterns in new words. Infants encode prosodic information, like stress, in their developing word representations.
Area of Science:
- Developmental Psychology
- Psycholinguistics
- Cognitive Science
Background:
- Infants' ability to learn new words is crucial for language acquisition.
- Understanding how infants represent novel word forms informs theories of early lexical development.
Purpose of the Study:
- To investigate the nature of infants' representations of newly encountered word forms.
- To determine if infants encode prosodic information, specifically stress patterns, in novel words.
Main Methods:
- A word-object association task was used to teach 14-month-old infants novel three-syllable words.
- Words varied in segmental and stress patterns.
- Infants' recognition of words was tested by manipulating stress patterns or stressed syllable position.
Main Results:
- Infants demonstrated sensitivity to the stress patterns of novel words.
- Evidence suggests infants store stress information, including the position of the stressed syllable.
- This indicates the formation of prosodically informed lexical representations.
Conclusions:
- 14-month-old infants form lexically rich representations that include prosodic information like word stress.
- Early word learning involves encoding detailed phonetic and prosodic features.
- Findings contribute to understanding the foundational mechanisms of infant language acquisition.
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