Overnight verbal memory retention correlates with the number of sleep spindles

Research output: Contribution to journalArticle

236 Citations (Scopus)

Abstract

Despite strong evidence supporting a role for sleep in the consolidation of newly acquired declarative memories, the contribution of specific sleep stages remains controversial. Based on electrophysiological studies in animals, synchronous sleep oscillations have been long proposed as possible origins of sleep-related memory improvement. Nevertheless, no studies to date have directly investigated the impact of sleep oscillations on overnight memory retention in humans. In the present study we provide evidence that overnight verbal memory retention is highly correlated with the number of sleep spindles detected by an automatic algorithm over left frontocentral areas. At the same time, overnight retention of newly learned faces was found to be independent of spindle activity but correlated with non-rapid-eye-movement sleep time. The data strongly support theories suggesting a link between sleep spindle activity and verbal memory consolidation.

Original languageEnglish
Pages (from-to)529-535
Number of pages7
JournalNeuroscience
Volume132
Issue number2
DOIs
Publication statusPublished - 2005

Fingerprint

Sleep
Sleep Stages
Eye Movements
Retention (Psychology)

Keywords

  • Memory consolidation
  • Sleep
  • Sleep spindles

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Overnight verbal memory retention correlates with the number of sleep spindles. / Clemens, Z.; Fabó, D.; Halász, P.

In: Neuroscience, Vol. 132, No. 2, 2005, p. 529-535.

Research output: Contribution to journalArticle

@article{52f875d2fc214b07b21ac34a7677f744,
title = "Overnight verbal memory retention correlates with the number of sleep spindles",
abstract = "Despite strong evidence supporting a role for sleep in the consolidation of newly acquired declarative memories, the contribution of specific sleep stages remains controversial. Based on electrophysiological studies in animals, synchronous sleep oscillations have been long proposed as possible origins of sleep-related memory improvement. Nevertheless, no studies to date have directly investigated the impact of sleep oscillations on overnight memory retention in humans. In the present study we provide evidence that overnight verbal memory retention is highly correlated with the number of sleep spindles detected by an automatic algorithm over left frontocentral areas. At the same time, overnight retention of newly learned faces was found to be independent of spindle activity but correlated with non-rapid-eye-movement sleep time. The data strongly support theories suggesting a link between sleep spindle activity and verbal memory consolidation.",
keywords = "Memory consolidation, Sleep, Sleep spindles",
author = "Z. Clemens and D. Fab{\'o} and P. Hal{\'a}sz",
year = "2005",
doi = "10.1016/j.neuroscience.2005.01.011",
language = "English",
volume = "132",
pages = "529--535",
journal = "Neuroscience",
issn = "0306-4522",
publisher = "Elsevier Limited",
number = "2",

}

TY - JOUR

T1 - Overnight verbal memory retention correlates with the number of sleep spindles

AU - Clemens, Z.

AU - Fabó, D.

AU - Halász, P.

PY - 2005

Y1 - 2005

N2 - Despite strong evidence supporting a role for sleep in the consolidation of newly acquired declarative memories, the contribution of specific sleep stages remains controversial. Based on electrophysiological studies in animals, synchronous sleep oscillations have been long proposed as possible origins of sleep-related memory improvement. Nevertheless, no studies to date have directly investigated the impact of sleep oscillations on overnight memory retention in humans. In the present study we provide evidence that overnight verbal memory retention is highly correlated with the number of sleep spindles detected by an automatic algorithm over left frontocentral areas. At the same time, overnight retention of newly learned faces was found to be independent of spindle activity but correlated with non-rapid-eye-movement sleep time. The data strongly support theories suggesting a link between sleep spindle activity and verbal memory consolidation.

AB - Despite strong evidence supporting a role for sleep in the consolidation of newly acquired declarative memories, the contribution of specific sleep stages remains controversial. Based on electrophysiological studies in animals, synchronous sleep oscillations have been long proposed as possible origins of sleep-related memory improvement. Nevertheless, no studies to date have directly investigated the impact of sleep oscillations on overnight memory retention in humans. In the present study we provide evidence that overnight verbal memory retention is highly correlated with the number of sleep spindles detected by an automatic algorithm over left frontocentral areas. At the same time, overnight retention of newly learned faces was found to be independent of spindle activity but correlated with non-rapid-eye-movement sleep time. The data strongly support theories suggesting a link between sleep spindle activity and verbal memory consolidation.

KW - Memory consolidation

KW - Sleep

KW - Sleep spindles

UR - http://www.scopus.com/inward/record.url?scp=15744382060&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=15744382060&partnerID=8YFLogxK

U2 - 10.1016/j.neuroscience.2005.01.011

DO - 10.1016/j.neuroscience.2005.01.011

M3 - Article

VL - 132

SP - 529

EP - 535

JO - Neuroscience

JF - Neuroscience

SN - 0306-4522

IS - 2

ER -