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Can 18-Month-Old Infants Learn Words by Listening In on Conversations?
Penelope Floor1, Nameera Akhtar1
1Department of Psychology University of California, Santa Cruz.
Summary
Eighteen-month-old infants can learn new words by overhearing conversations, even without direct instruction. This study explored word acquisition through passive listening in young children.
Area of Science:
- Developmental Psychology
- Language Acquisition
Background:
- Prior studies indicate children aged two can acquire vocabulary from third-party interactions.
- Infant word learning is a critical area in developmental psychology.
Purpose of the Study:
- To investigate if younger infants, specifically 18-month-olds, can learn novel object labels by overhearing conversations.
- To examine the role of direct versus indirect exposure in early word learning.
Main Methods:
- 18-month-old infants were exposed to new word-object pairings.
- Exposure occurred in two conditions: direct instruction by an experimenter and overhearing the experimenter use the word with another adult.
- Memory load was considered a potential factor.
Main Results:
- Infants demonstrated the ability to learn novel words through overhearing.
- This learning was observed when memory demands were not excessively high.
- Overhearing proved to be a viable, albeit conditional, pathway for word acquisition.
Conclusions:
- Eighteen-month-old infants possess the capacity for word learning via overhearing.
- Social context and memory load influence the effectiveness of word acquisition through indirect exposure.
- Findings suggest that incidental learning from ambient language is significant in early development.
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