Sleep and memory

Idzikowski, C.

doi:10.1111/j.2044-8295.1984.tb01914.x

Cited by 38 publications

(26 citation statements)

References 21 publications

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“…A facilitatory effect of sleep on the recall of previously learned items has been reported in several memory studies (Benson & Feinberg, 1975;Idzikowski, 1984;Lahl, Wispel, Willigens, & Pietrowsky, 2008) and the findings also align with demonstrations of a benefit of sleep in learning novel spoken words using recall tasks (Dumay & Gaskell, 2007Kurdziel & Spencer, 2015). Here, we found that sleep after learning appeared to prevent decay of episodic memory for the newly learned items, and eventual sleep in the AM group arrested apparent decay, with some suggestion of improved recall to a level shown by the PM group.…”

Section: Discussionsupporting

confidence: 74%

Bedding down new words: Sleep promotes the emergence of lexical competition in visual word recognition

et al. 2016

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Section: Discussionsupporting

confidence: 74%

Bedding down new words: Sleep promotes the emergence of lexical competition in visual word recognition

et al. 2016

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“…Many studies subsequently confirmed the positive effect of sleep on memory (63, 79, 80, 248, 341-343, 350, 408, 478, 479, 592, 745, 853, 855, 1068, 1131, 1192, 1241), examining also longer retention intervals of from 24 h up to 6 days (79,80,474,592,990). The underlying concept was that sleep acts as a "temporary shelter" that simply postpones the effect of interference and, thereby, passively maintains the memory traces (p. 717 in Ref.…”

Section: Overview Of Approaches and Conceptsmentioning

confidence: 81%

“…In this regard, electrophysiological, neurochemical, and genetic conditions are considered that will be discussed in detail in the next sections. In fact, at a purely behavioral level, numerous studies have demonstrated that sleep after learning benefits declarative (17,18,60,63,79,290,326,327,343,348,350,376,408,427,431,478,479,547,560,571,574,592,603,682,732,735,861,898,930,932,959,1069,1172,1192,1217,1274,1276,1278,1282,1302) as well as nondeclarative kinds of procedural memory (135,147,164,311,322,374,383,435,447,563,…”

Section: F the Active System Consolidation Hypothesismentioning

confidence: 99%

About Sleep's Role in Memory

Rasch

Born

2013

Physiological Reviews

2,265

2,026

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Over more than a century of research has established the fact that sleep benefits the retention of memory. In this review we aim to comprehensively cover the field of "sleep and memory" research by providing a historical perspective on concepts and a discussion of more recent key findings. Whereas initial theories posed a passive role for sleep enhancing memories by protecting them from interfering stimuli, current theories highlight an active role for sleep in which memories undergo a process of system consolidation during sleep. Whereas older research concentrated on the role of rapid-eye-movement (REM) sleep, recent work has revealed the importance of slow-wave sleep (SWS) for memory consolidation and also enlightened some of the underlying electrophysiological, neurochemical, and genetic mechanisms, as well as developmental aspects in these processes. Specifically, newer findings characterize sleep as a brain state optimizing memory consolidation, in opposition to the waking brain being optimized for encoding of memories. Consolidation originates from reactivation of recently encoded neuronal memory representations, which occur during SWS and transform respective representations for integration into long-term memory. Ensuing REM sleep may stabilize transformed memories. While elaborated with respect to hippocampus-dependent memories, the concept of an active redistribution of memory representations from networks serving as temporary store into long-term stores might hold also for non-hippocampus-dependent memory, and even for nonneuronal, i.e., immunological memories, giving rise to the idea that the offline consolidation of memory during sleep represents a principle of long-term memory formation established in quite different physiological systems.

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“…As sleep disturbances, particularly disturbed REM or slow wave sleep, have been hypothesized to impair cognitive functions, such as learning and memory consolidation [Idzikowski, 1984;Karni et al, 1994;Peigneux et al, 2001]. Mobile telephoning might also affect neuropsychological variables by causing sleep alterations.…”

Section: Introductionmentioning

confidence: 99%

Effects of short‐ and long‐term pulsed radiofrequency electromagnetic fields on night sleep and cognitive functions in healthy subjects

Fritzer

Göder

Friege

et al. 2007

Bioelectromagnetics

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There has been wide public discussion on whether the electromagnetic fields of mobile telephones and their base stations affect human sleep or cognitive functioning. As there is evidence for learning and memory-consolidating effects of sleep and particularly of REM sleep, disturbance of sleep by radiofrequency electromagnetic fields might also impair cognitive functions. Previously realized sleep studies yielded inconsistent results regarding short-term exposure. Moreover, data are lacking on the effect that short- and long-term exposure might have on sleep as well as on cognitive functions. Therefore, 10 healthy young male subjects were included and nocturnal sleep was recorded during eight consecutive nights. In the second, third, and last night, we investigated polysomnographic night sleep and cognitive functions. After the adaptation and baseline nights, the participants were exposed to a defined radiofrequency electromagnetic field during the following six nights. We analyzed polysomnographic night sleep according to Rechtschaffen and Kales [1968, Manual of Standardized Terminology, Techniques and Scoring System for Sleep of Human Subjects] as well as by power spectra and correlation dimension. Cognitive functions were investigated by an array of neuropsychological tests. Data analysis was done by comparing the baseline night with the first and last exposure night and the first two sleep cycles of the respective nights. We did not find significant effects, either on conventional sleep parameters or on power spectra and correlation dimension, nor were there any significant effects on cognitive functions. With our results, we are unable to reveal either short-term or cumulative long-term effects of radiofrequency electromagnetic fields on night sleep and cognitive functions in healthy young male subjects.

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Sleep and memory

Cited by 38 publications

References 21 publications

Bedding down new words: Sleep promotes the emergence of lexical competition in visual word recognition

Bedding down new words: Sleep promotes the emergence of lexical competition in visual word recognition

About Sleep's Role in Memory

Effects of short‐ and long‐term pulsed radiofrequency electromagnetic fields on night sleep and cognitive functions in healthy subjects

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