Evidence map›Paper›PMID 40570297›Full record

ArticleSleep2025

Effect of chronic benzodiazepine and benzodiazepine receptor agonist use on sleep architecture and brain oscillations in older adults with chronic insomnia.

Loïc Barbaux, Aurore A Perrault, Nathan E Cross, Oren M Weiner, Mehdi Es-Sounni, Florence B Pomares, Lukia Tarelli, Margaret McCarthy, Antonia Maltezos, Dylan Smith and 11 more

Abstract read
In one paragraph

Article in Sleep, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Amyloid-Frontiers in neuroscience · 2026
    Review
  7. Article
  8. Exercise, cognition, and affective disorders.Frontiers in sports and active living · 2026
    Review
  9. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

21 authors.

Loïc BarbauxSleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology, School of Health & Center for Studies in Behavioural Neurobiology, Concordia University, Montreal, QC, Canada.
Aurore A PerraultSleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology, School of Health & Center for Studies in Behavioural Neurobiology, Concordia University, Montreal, QC, Canada.
Nathan E CrossSleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology, School of Health & Center for Studies in Behavioural Neurobiology, Concordia University, Montreal, QC, Canada.
Oren M WeinerSleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology, School of Health & Center for Studies in Behavioural Neurobiology, Concordia University, Montreal, QC, Canada.
Mehdi Es-SounniSleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology, School of Health & Center for Studies in Behavioural Neurobiology, Concordia University, Montreal, QC, Canada.
Florence B PomaresSleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology, School of Health & Center for Studies in Behavioural Neurobiology, Concordia University, Montreal, QC, Canada.
Lukia TarelliSleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology, School of Health & Center for Studies in Behavioural Neurobiology, Concordia University, Montreal, QC, Canada.
Margaret McCarthySleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology, School of Health & Center for Studies in Behavioural Neurobiology, Concordia University, Montreal, QC, Canada.
Antonia MaltezosSleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology, School of Health & Center for Studies in Behavioural Neurobiology, Concordia University, Montreal, QC, Canada.
Dylan SmithSleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology, School of Health & Center for Studies in Behavioural Neurobiology, Concordia University, Montreal, QC, Canada.
Kirsten GongSleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology, School of Health & Center for Studies in Behavioural Neurobiology, Concordia University, Montreal, QC, Canada.
Jordan O'ByrneSleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology, School of Health & Center for Studies in Behavioural Neurobiology, Concordia University, Montreal, QC, Canada.
Victoria YueSleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology, School of Health & Center for Studies in Behavioural Neurobiology, Concordia University, Montreal, QC, Canada.
Caroline DesrosiersCentre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Ile-de-Montréal, Montreal, QC, Canada.
Doris ClercCentre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Ile-de-Montréal, Montreal, QC, Canada.
Francis AndriamampiononaCentre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Ile-de-Montréal, Montreal, QC, Canada.
David LussierCentre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Ile-de-Montréal, Montreal, QC, Canada.
Suzanne GilbertCentre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Ile-de-Montréal, Montreal, QC, Canada.
Cara TannenbaumCentre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Ile-de-Montréal, Montreal, QC, Canada.
Jean-Philippe GouinCentre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, CIUSSS Centre-Sud-de-l'Ile-de-Montréal, Montreal, QC, Canada.
Thien Thanh Dang-VuSleep, Cognition and Neuroimaging Lab, Department of Health, Kinesiology and Applied Physiology, School of Health & Center for Studies in Behavioural Neurobiology, Concordia University, Montreal, QC, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

objectivesInsomnia in older adults is associated with widespread benzodiazepine (BZD) and benzodiazepine receptor agonist (BZRA) use despite evidence that chronic use disrupts sleep regulation and cognition. Little is known about BZD/BZRA effects on Non-rapid eye movement (NREM) slow oscillations (SO), spindles and their coupling, which is crucial for memory in older adults. Our objective was to investigate the effects of chronic BZD/BZRA use on sleep macro-architecture, electroencephalogram (EEG) relative power, SO and spindle characteristics and coupling.

methodsAfter habituation polysomnography, second-night data were analyzed from 101 participants (66.05 ± 5.84 years, range: 55-80 years, 73 per cent female) were categorized into three groups: good sleepers (GS, n = 28), individuals with insomnia (INS, n = 26) or individuals with insomnia who chronically use BZD/BZRA (MED, n = 47; diazepam equivalent: 6.1 ± 3.8 mg per use; >3 nights/week). We performed a comprehensive comparison of sleep architecture, EEG relative spectrum, and associated brain oscillatory activities, focusing on SO and spindles and their temporal coupling.

resultsMED showed disrupted sleep architecture with lower N3 and higher N1 duration and spectral activity and altered sleep-related brain oscillations synchrony, compared to INS and GS. An exploratory interaction model suggested that chronic use of higher doses (mg per use) correlated with more pronounced disruptions in sleep micro-architecture and EEG spectrum.

conclusionsOur results suggest that chronic BZD and BZRA use is associated with poorer sleep quality. Such alteration of sleep regulation-at the macro and micro-architectural levels-may contribute to the reported association between BZD/BZRA use and cognitive impairment in older adults. Statement of Significance Widespread use of sedative-hypnotics is driven by high insomnia rates among older adults. Chronic use can disrupt cognitive function; however, its impact on sleep regulation is not well understood. We assessed the effect of chronic benzodiazepine use in older adults using a between-group design involving good sleepers, drug-free individuals with insomnia disorder and individuals with insomnia disorder who chronically use sedative-hypnotics as a sleep aid. We performed a comprehensive comparison of sleep architecture, electroencephalogram relative spectrum, and associated NREM brain oscillations related to memory consolidation. We showed that chronic use of sedative-hypnotics is detrimental to sleep regulation-at the macro and micro-level-and this may contribute to the reported link between sedative-hypnotic use and cognitive impairment in older adults.

Indexed as

BenzodiazepinesBrainGABA-A Receptor AgonistsSleepSleep Initiation and Maintenance DisordersAgedAged, 80 and overElectroencephalographyFemaleHumansMaleMiddle AgedPolysomnographyBenzodiazepinesGABA-A Receptor Agonistsagingbenzodiazepinebrain oscillationssleep

Identifiers

PMID40570297
PMCPMC12515599

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.