Reactivation fails to offer the improvement sleep does.
In a dynamic process that ultimately affords memories their persistence, memory reconsolidation can serve to strengthen associations following reactivation, particularly in sleep, where active processes may effect overnight enhancement. Reactivation can also occur in wake, where improvement would be...
| Publicado en: | Sleep Advances Vol. 6; no. 2; pp. 1 - 10 |
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| Autores principales: | , , |
| Formato: | pictorial poetry research tables/charts Journal Article |
| Publicado: |
Oxford University Press / USA
Apr2025
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=187147208&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 187147208 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 26325012 MB4X jtl: Sleep Advances issn: 26325012 maglogo: N pubinfo: dt: Apr2025 vid: 6 iid: 2 pid: 622 pub: Oxford University Press / USA artinfo: ui: 187147208 187147208 187147208 10.1093/sleepadvances/zpaf035 187147208 ppf: 1 ppct: 9 formats: tig: atl: Reactivation fails to offer the improvement sleep does. aug: au: Barsky, Murray M Morgan, Alexandra Stickgold, Robert affil: Harvard University, Cambridge, MA 02138 USA sug: subj: Wakefulness Physiology Sleep Physiology Neuronal Plasticity Physiology Memory Evaluation Paradigms Task Performance and Analysis Circadian Rhythm Sleep, REM Physiology Human Funding Source Learning Methods Cognition Psychomotor Performance Students, College Male Female Adolescence Adult Descriptive Statistics One-Way Analysis of Variance Unpaired T-Tests Data Analysis Software Post Hoc Analysis Adolescent: 13-18 years Adult: 19-44 years Male Female ab: In a dynamic process that ultimately affords memories their persistence, memory reconsolidation can serve to strengthen associations following reactivation, particularly in sleep, where active processes may effect overnight enhancement. Reactivation can also occur in wake, where improvement would be unexpected. In an earlier study using performance on the Weather Prediction Task (WPT) as a measure of probabilistic category learning, we looked at the effect of sleep and found significant improvement after a daytime nap, where improvement correlated with the amount of REM sleep obtained. When we introduced interference training following sleep, this REM sleep benefit vanished: post-learning task memory was otherwise preserved. Here, we follow up on these results and test whether reactivation itself—wake reactivation—might be sufficient to induce the improvement found after REM sleep. Our results show that it is not: we saw no improvement on the WPT following reactivation in wake, suggesting sleep may be unique in supporting memory improvement. When we looked at interference effects, we saw unexplained differences between wake and sleep that suggest that while interference is uniformly destabilizing of WPT memories during wake, interference after REM show effects on the memory trace formed during initial learning that are distinctly different from its effects on the subsequently sleep-enhanced memory. pubtype: Academic Journal doctype: pictorial poetry research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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