Sleep-associated changes in the mental representation of spoken words.

Dumay, Nicolas and Gaskell, M.G. (2007) Sleep-associated changes in the mental representation of spoken words. Psychological Science, 18 (1). pp. 35-39. ISSN 0956-7976 . (Access to this publication is restricted)

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http://dx.doi.org/10.1111/j.1467-9280.2007.01845.x

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.

Item Type: Article
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Q Science > QP Physiology (Living systems)
P Language and Literature > P Philology. Linguistics
Divisions: Faculties > Social Sciences > School of Psychology > Cognitive Psychology
Depositing User: Nicolas Dumay
Date Deposited: 11 Jun 2009 08:32
Last Modified: 08 Jun 2012 14:29
Resource URI: http://kar.kent.ac.uk/id/eprint/14941 (The current URI for this page, for reference purposes)
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