Academic Journal

Preferential Consolidation of Emotional Memory During Sleep: A Meta-Analysis

التفاصيل البيبلوغرافية
العنوان: Preferential Consolidation of Emotional Memory During Sleep: A Meta-Analysis
المؤلفون: Gosia Lipinska, Beth Stuart, Kevin G. F. Thomas, David S. Baldwin, Elaina Bolinger
المصدر: Frontiers in Psychology, Vol 10 (2019)
بيانات النشر: Frontiers Media S.A., 2019.
سنة النشر: 2019
المجموعة: LCC:Psychology
مصطلحات موضوعية: consolidation, emotional memory, meta-analysis, review, sleep, Psychology, BF1-990
الوصف: It is uncertain whether sleep preferentially consolidates emotional over neutral material. Some studies suggest that sleep enhances emotional memory (i.e., that there are large differences in strength of memory for valenced material compared to neutral material after a sleep-filled interval, but that this difference is smaller after a wake-filled interval). Others find no such effect. We attempted to resolve this uncertainty by conducting a meta-analysis that compared valenced to neutral material after both sleep- and wake-filled delays. Standard search strategies identified 31 studies (containing 36 separate datasets) that met our inclusion criteria. Using random effects modeling, we conducted separate analyses for datasets comparing (a) negative vs. neutral material, (b) positive vs. neutral material, or (c) combined negative and positive vs. neutral material. We then specified several subgroup analyses to investigate potential moderators of the relationship between sleep and emotional memory consolidation. Results showed no overall effect for preferential sleep-dependent consolidation of emotional over neutral material. However, moderation analyses provided evidence for stronger effects when (a) studies used free recall rather than recognition outcome measures, or (b) delayed recall or recognition outcomes were controlled for initial learning. Those analyses also suggested that other methodological features (e.g., whether participants experience a full night of sleep and a regular daytime waking control condition rather than a nap and a night-time sleep deprivation control condition) and sample characteristics (e.g. all-male or not, young adult or not) should be carefully addressed in future research in this field. These findings suggest that sleep does enhance emotional memory, but that in the laboratory the effect is only observed under particular methodological conditions. The conditions we identify as being critical to consider are consistent with general theories guiding scientific understanding of memory consolidation during sleep.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1664-1078
Relation: https://www.frontiersin.org/article/10.3389/fpsyg.2019.01014/full; https://doaj.org/toc/1664-1078
DOI: 10.3389/fpsyg.2019.01014
URL الوصول: https://doaj.org/article/c09877ed437b474ea016103a9f52492a
رقم الانضمام: edsdoj.09877ed437b474ea016103a9f52492a
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:16641078
DOI:10.3389/fpsyg.2019.01014