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Sleep-Associated Changes in the Mental Representation of Spoken Words
Abstract
The integration of a newly learned spoken word form with existing knowledge in the mental lexicon is characterized by the word form's ability to compete with similar-sounding entries during auditory word recognition. Here we show that although the mere acquisition of a spoken form is swift, its engagement in lexical competition requires an incubation-like period that is crucially associated with sleep. Words learned at 8 p.m. do not induce (inhibitory) competition effects immediately, but do so after a 12-hr interval including a night's sleep, and continue to induce such effects after 24 hr. In contrast, words learned at 8 a.m. do not show such effects immediately or after 12 hr of wakefulness, but show the effects only after 24 hr, after sleep has occurred. This time-course dissociation is best accommodated by connectionist and neural models of learning in which sleep provides an opportunity for hippocampal information to be fed into long-term neocortical memory.
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“Thus, in adults and children, sleep promoted the integration of newly learned spoken words into existing knowledge networks as measured by a lexical competition task (333, 334, 530; but see Ref. 735), with this effect being associated with increased spindle activity (1175).”
From About Sleep's Role in Memory (2013) · cites this paper as [334]
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Metadata
- Authors
- Dumay, N., & Gaskell, M. G.
- Affiliations
- University of York (GB)
- Corresponding author
- Dumay, Nicolas
- Venue
- Psychological Science
- Publisher
- SAGE Publications
- Published
- 2007-01
- Volume
- 18
- Issue
- 1
- Pages
- 35-39
- ISSN
- 0956-7976 (ISSN-L)
- 1467-9280
- OpenAlex
- W2103643568
- Cited by
- 449
- References
- 30
- Citations by year
- 2026: 9 · 2025: 20 · 2024: 28 · 2023: 17 · 2022: 33 · 2021: 37 · 2020: 21 · 2019: 20 · 2018: 23 · 2017: 28 · 2016: 28 · 2015: 34 · 2014: 33 · 2013: 22 · 2012: 28
- FWCI
- 7.32
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Psychological Science (publishedVersion)
- PubMed (publishedVersion)
- Kent Academic Repository (University of Kent) (submittedVersion)
- White Rose Research Online (University of Leeds, The University of Sheffield, University of York) (submittedVersion)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
- Social Sciences › Psychology › Developmental and Educational Psychology › Reading and Literacy Development
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
- Keywords
- sleep, lexical competition, auditory word recognition, mental lexicon, incubation, time course of learning, hippocampus, long-term memory consolidation, connectionist models
- MeSH terms
- Adolescent, Adult, Brain, Cognition, Mental Fatigue, Female, Humans, Male, Sleep, Verbal Behavior, Vocabulary, Wakefulness
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