concept

sleep spindles

Also known as: sleep spindle

Facts (24)

Sources

Sleep Across the Lifespan: A Neurobehavioral Perspective link.springer.com Springer Feb 5, 2025 18 facts

referencePurcell SM, Manoach DS, Demanuele C, Cade BE, Mariani S, Cox R, et al. published 'Characterizing sleep spindles in 11,630 individuals from the National Sleep Research Resource' in Nature Communications in 2017.

claimThe most significant age-related changes in sleep spindles are a decrease in fast spindle density and a reduction in total integrated spindle activity, which is a metric of spindle intensity that incorporates amplitude, duration, and count.

referenceMalerba et al. (2022) analyzed the space-time profiles of sleep spindles and their coordination with slow oscillations on the electrode manifold.

referenceKwon et al. characterize age-associated changes in sleep spindles in the healthy brain from birth through 18 years of age.

referenceClawson BC, Durkin J, and Aton SJ published 'Form and function of sleep spindles across the lifespan' in Neural Plasticity in 2016.

measurementBetween ages 21 and 65, sleep spindles show trending decreases in density, amplitude, and duration.

measurementSleep spindles are defined as bursts of thalamocortical activity in the 12 to 15 Hz frequency range.

referenceKwon H, Walsh KG, Berja ED, Manoach DS, Eden UT, Kramer MA, et al. published 'Sleep spindles in the healthy brain from birth through 18 years' in the journal Sleep in 2023.

referenceRicci A, He F, Calhoun SL, Fang J, Vgontzas AN, Liao D, et al. published 'Sex and Pubertal differences in the Maturational Trajectories of Sleep Spindles in the transition from Childhood to Adolescence: a Population-based study' in eNeuro in 2021.

claimOlder adults exhibit a decreased count and density of K-complexes and spindles, as well as reduced slow oscillation (SO) amplitude compared to young adults.

referenceSimon et al. (2024) characterized age-associated sleep spindle changes in individuals with Duchenne muscular dystrophy.

referenceMartin et al. (2013) mapped the topography of age-related changes in sleep spindles.

referenceZhang ZY, Campbell IG, Dhayagude P, Espino HC, and Feinberg I published 'Longitudinal analysis of sleep spindle maturation from childhood through late adolescence' in the Journal of Neuroscience in 2021.

referenceShetty et al. (2024) found that sleep spindles are reduced in children diagnosed with Down syndrome and sleep-disordered breathing.

referenceThe paper 'The effects of normal aging on sleep spindle and K-complex production' published in Clinical Neurophysiology (Crowley et al.) examines how aging impacts specific sleep EEG features.

referenceReynolds CM, Short MA, and Gradisar M published 'Sleep spindles and cognitive performance across adolescence: a meta-analytic review' in the Journal of Adolescence in 2018.

referenceKurdziel L, Duclos K, and Spencer RM published 'Sleep spindles in midday naps enhance learning in preschool children' in the Proceedings of the National Academy of Sciences in 2013.

claimIn older adults, the coupling of spindles and slow oscillations (SOs) is reduced, and spindles tend to occur earlier in the slow oscillation phase compared to younger adults.

Physiology, Sleep Stages - StatPearls - NCBI Bookshelf - NIH ncbi.nlm.nih.gov National Library of Medicine 3 facts

claimSleep spindles are believed to be integral to synaptic plasticity and are essential for procedural and declarative memory consolidation.

claimN2 (Stage 2) sleep is characterized by a drop in heart rate and body temperature, and the presence of sleep spindles, K-complexes, or both on an EEG recording.

claimSleep spindles are brief, powerful bursts of neuronal firing in the superior temporal gyri, anterior cingulate, insular cortices, and thalamus that induce calcium influx into cortical pyramidal cells.

The Profound Interplay Between Sleep and Cognitive Function creyos.com Mackenzie Godard · Creyos Aug 14, 2025 3 facts

referenceResearch indicates a relationship between sleep spindles and IQ, suggesting that these specific patterns of brain activity during sleep are linked to intellectual capacity (Fang et al., 2017).

referenceSleep spindles, which are short neural oscillations that occur during NREM sleep, have been consistently linked to cognitive performance (Bódizs et al., 2014).

claimFang et al. (2017) suggest that specific patterns of brain activity during sleep, such as sleep spindles, have a deeper relationship with intellectual capacity rather than being merely a side effect of sleep quality.