Qualitative differences in offline improvement of procedural memory by daytime napping and overnight sleep: An fMRI study

Sugawara, Sho K.; Koike, T.; Kawamichi, Hozumi; Makita, Kai; Hamano, Yuki H.; Takahashi, Haruka; Nakagawa, Eri; Sadato, Norihiro

doi:10.1016/j.neures.2017.09.006

Cited by 12 publications

(6 citation statements)

References 51 publications

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“…Results disclosed rsFC changes between post-(RS 2) and pre-(RS 1) learning in the theta band (p = 0.004) and replicated induction effects in the boost window (RS 3 vs. RS 2) in the delta, alpha, beta and gamma bands (all p-values ≤ 0.03), and in the next day window (RS 7 vs. RS 6) within the alpha and gamma frequency bands (all p-values ≤ 0.05) [Supplementary Figs. [5][6][7][8][9][10][11]. No induction effects were evidenced in the silent window (RS 5 vs. RS 4), all p-values ≥ 0.22.…”

Section: Resting-state Functional Connectivity Analysesmentioning

confidence: 80%

Motor learning- and consolidation-related resting state fast and slow brain dynamics across wake and sleep

Roshchupkina,

Wens,

Coquelet

et al. 2024

Sci Rep

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Motor skills dynamically evolve during practice and after training. Using magnetoencephalography, we investigated the neural dynamics underpinning motor learning and its consolidation in relation to sleep during resting-state periods after the end of learning (boost window, within 30 min) and at delayed time scales (silent 4 h and next day 24 h windows) with intermediate daytime sleep or wakefulness. Resting-state neural dynamics were investigated at fast (sub-second) and slower (supra-second) timescales using Hidden Markov modelling (HMM) and functional connectivity (FC), respectively, and their relationship to motor performance. HMM results show that fast dynamic activities in a Temporal/Sensorimotor state network predict individual motor performance, suggesting a trait-like association between rapidly recurrent neural patterns and motor behaviour. Short, post-training task re-exposure modulated neural network characteristics during the boost but not the silent window. Re-exposure-related induction effects were observed on the next day, to a lesser extent than during the boost window. Daytime naps did not modulate memory consolidation at the behavioural and neural levels. These results emphasise the critical role of the transient boost window in motor learning and memory consolidation and provide further insights into the relationship between the multiscale neural dynamics of brain networks, motor learning, and consolidation.

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Section: Resting-state Functional Connectivity Analysesmentioning

confidence: 80%

Motor learning- and consolidation-related resting state fast and slow brain dynamics across wake and sleep

Roshchupkina,

Wens,

Coquelet

et al. 2024

Sci Rep

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“…The vast majority of sleep and memory research has been conducted in either whole night sleep or nap sleep designs and several studies directly investigated whether the chosen sleep protocol directly affects sleep-memory associations (Cousins et al, 2021; Lo et al, 2014; Mednick et al, 2003; Pöhlchen et al, 2021; Sugawara et al, 2018), especially with regards to the role of sleep spindles in memory consolidation (Cousins et al, 2021; van Schalkwijk et al, 2019). A recent study on procedural memory observed naps and whole nights of sleep may both yield similar memory benefits, suggesting that daytime naps protect memories from deterioration, whereas whole night sleep improves performance, especially in procedural memory (van Schalkwijk et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

Spindle-dependent memory consolidation in healthy adults: A meta-analysis

Kumral

Matzerath

Leonhart

et al. 2022

Preprint

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Accumulating evidence suggests a central role for sleep spindles in the consolidation of new memories. However, no metaanalysis of the association between sleep spindles and memory performance has been conducted so far. Here, we report meta-analytical evidence for spindle-memory associations and investigate how multiple factors, including memory type, spindle type, spindle characteristics, and EEG topography affect this relationship. The literature search yielded 53 studies reporting 1424 effect sizes, resulting in a small to moderate effect for the average association. We further found that spindle-memory relationships were significantly stronger for procedural memory than for declarative memory. Neither spindle types nor EEG scalp topography had an impact on the strength of the spindlememory relation, but we observed a distinct functional role of global and fast sleep spindles, especially for procedural memory. We also found a moderation effect of spindle characteristics, with spindle frequency and power showing the largest effect sizes. Collectively, our findings suggest that sleep spindles are involved in learning and plasticity, thereby representing a general physiological mechanism for memory consolidation.HighlightsSpindle measures showed a small to medium-sized association with memory performance.This relationship was stronger for procedural memory than declarative memory.No moderation effects of spindle type and EEG scalp topography have been observed.Spindle frequency and power emerged as the strongest predictors.Naps showed similar spindle-related consolidation mechanisms to whole-night sleep.

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“…Napping appears beneficial for all types of memory, either procedural [ 56 ], declarative [ 57 ] or short-term memory [ 19 ]. Daytime napping offers various other benefits such as relaxation, reduced fatigue [ 58 ] and improve mood [ 55 ]. Napping can boost creativity [ 59 , 60 ] and productivity [ 61 ], improve physical performance [ 62 ] and help people to cope with fatigue related to shiftwork [ 63 , 64 , 65 ].…”

Section: Discussionmentioning

confidence: 99%

Effects of a Short Daytime Nap on the Cognitive Performance: A Systematic Review and Meta-Analysis

Dutheil¹,

Danini²,

Bagheri

et al. 2021

IJERPH

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Background: Napping in the workplace is under debate, with interesting results on work efficiency and well-being of workers. In this systematic review and meta-analysis, we aimed to assess the benefits of a short daytime nap on cognitive performance. Methods: PubMed, Cochrane Library, ScienceDirect and PsycInfo databases were searched until 19 August 2021. Cognitive performance in working-aged adults, both before and following a daytime nap or under control conditions (no nap), was analysed by time and by type of cognitive function (alertness, executive function and memory). Results: We included 11 studies (all in laboratory conditions including one with a subgroup in working conditions) for a total of 381 participants. Mean duration of nap was 55.4 ± 29.4 min. Overall cognitive performance did not differ at baseline (t0) between groups (effect size −0.03, 95% CI −0.14 to 0.07), and improved in the nap group following the nap (t1) (0.18, 0.09 to 0.27), especially for alertness (0.29, 0.10 to 0.48). Sensitivity analyses gave similar results comparing only randomized controlled trials, and after exclusion of outliers. Whatever the model used, performance mainly improved until 120 min after nap, with conflicting results during the sleep inertia period. Early naps in the afternoon (before 1.00 p.m.) gave better cognitive performance (0.24, −0.07 to 0.34). The benefits of napping were independent of sex and age. Duration of nap and time between nap and t1 did not influence cognitive performance. Conclusions: Despite the fact that our meta-analyses included almost exclusively laboratory studies, daytime napping in the afternoon improved cognitive performance with beneficial effects of early nap. More studies in real work condition are warranted before implementing daytime napping at work as a preventive measure to improve work efficiency.

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Qualitative differences in offline improvement of procedural memory by daytime napping and overnight sleep: An fMRI study

Cited by 12 publications

References 51 publications

Motor learning- and consolidation-related resting state fast and slow brain dynamics across wake and sleep

Motor learning- and consolidation-related resting state fast and slow brain dynamics across wake and sleep

Spindle-dependent memory consolidation in healthy adults: A meta-analysis

Effects of a Short Daytime Nap on the Cognitive Performance: A Systematic Review and Meta-Analysis

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