REM-dependent repair of competitive memory suppression

Bengi Baran; Jessica Wilson; Rebecca M C Spencer

doi:10.1007/s00221-010-2242-2

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REM-dependent repair of competitive memory suppression

Journal article

Peer reviewed

REM-dependent repair of competitive memory suppression

Bengi Baran, Jessica Wilson and Rebecca M C Spencer

Experimental brain research, Vol.203(2), pp.471-477

06/2010

DOI: 10.1007/s00221-010-2242-2

PMCID: PMC3259851

PMID: 20401652

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Abstract

Memories are enhanced during sleep through memory consolidation processes. A recent study reported that sleep increases competitive forgetting in the absence of sleep-dependent consolidation of the target memory (Racsmany et al. in Psychol Sci 21:80-85, 2010). Here, using a modified retrieval-induced forgetting task, we examined whether sleep-dependent modulation of forgetting occurs concurrently with the consolidation of related target memories. Participants encoded a word-pair list and then practiced retrieving a portion of these pairs. Following a break with sleep or wake, recall of all pairs was tested. As expected, recall for practiced pairs was greater following sleep relative to wake. Contrary to Racsmany et al. (Psychol Sci 21:80-85, 2010), competitive forgetting decreased following sleep. Moreover, recall for practiced pairs correlated with slow wave sleep (SWS) while forgetting of competing targets correlated negatively with REM, suggesting a novel function of these sequential brain states on memory processing.

Cues

Humans

Male

Reaction Time - physiology

Polysomnography

Psychomotor Performance - physiology

Neuropsychological Tests

Young Adult

Analysis of Variance

Repression, Psychology

Wakefulness - physiology

Female

Sleep - physiology

Memory - physiology

Details

Title: Subtitle: REM-dependent repair of competitive memory suppression
Creators: Bengi Baran - Department of Psychology, University of Massachusetts, Amherst, MA, USA
Jessica Wilson
Rebecca M C Spencer
Resource Type: Journal article
Publication Details: Experimental brain research, Vol.203(2), pp.471-477
DOI: 10.1007/s00221-010-2242-2
PMID: 20401652
PMCID: PMC3259851
NLM abbreviation: Exp Brain Res
ISSN: 0014-4819
eISSN: 1432-1106
Publisher: Germany
Grant note: R00 AG029710 / NIA NIH HHS R00 AG029710-05 / NIA NIH HHS K99 AG029710 / NIA NIH HHS K99/R00 AG29710 / NIA NIH HHS
Language: English
Date published: 06/2010
Academic Unit: Psychiatry; Psychological and Brain Sciences; Iowa Neuroscience Institute
Record Identifier: 9984065474802771

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