Author(s): Jourde HR; Sobral M; Beltrame G; Coffey EBJ;

Sleep spindles are neural events unique to nonrapid eye movement sleep that play key roles in memory reactivation and consolidation. However, much of the evidence for their function remains correlational rather than causal. Closed-loop brain stimulation uses real-time monitoring of neural events (often via electroencephalography; EEG) to deliver precise a ...

Article GUID: 40626105

Author(s): Sobral M; Jourde HR; Marjani Bajestani SE; Coffey EBJ; Beltrame G;

Personalized closed-loop brain stimulation, in which algorithms used to detect neural events adapt to a user's unique neural characteristics, may be crucial to enable optimized and consistent stimulation quality for both fundamental research and clinical applications. Precise stimulation of sleep spindles-transient patterns of brain activity that occu ...

Article GUID: 40609549

Author(s): Barbaux L; Perrault AA; Cross NE; Weiner OM; Es-Sounni M; Pomares FB; Tarelli L; McCarthy M; Maltezos A; Smith D; Gong K; O' Byrne J; Yue V; Desrosiers C; Clerc D; Andriamampionona F; Lussier D; Gilbert S; Tannenbaum C; Gouin JP; Da ...

Study objectives: Insomnia 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 NREM slow oscillations (SO), spindles ...

Article GUID: 40570297

Author(s): Cross N; O' Byrne J; Weiner OM; Giraud J; Perrault AA; Dang-Vu TT;

There is growing evidence in humans linking the temporal coupling between spindles and slow oscillations during NREM sleep with the overnight stabilization of memories encoded from daytime experiences in humans. However, whether the type and strength of learning influence that relationship is still unknown. Here we tested whether the amount or type of ver ...

Article GUID: 40214027

Author(s): Nguyen PV; Dang-Vu TT; Forest G; Desjardins S; Forget MF; Vu TT; Nguyen QD; Kouassi E; Desmarais P;

Background: Mirtazapine promotes sleep by blocking serotonin and histaminergic receptors and is often used off-label to treat chronic insomnia. However, its efficacy remains to be demonstrated in a clinical trial. The MIRAGE study aims to determine the efficacy and safety of mirtazapine in older ...

Article GUID: 40135470

Author(s): Avigdor T; Ren G; Abdallah C; Dubeau F; Grova C; Frauscher B;

Morning awakening is part of everyday life. Surprisingly, information remains scarce on its underlying neurophysiological correlates. Here simultaneous polysomnography and stereo-electroencephalography recordings from 18 patients are used to assess the spectral and connectivity content of the process of awakening at a local level 15 min before and after t ...

Article GUID: 40126936

Author(s): Pereira M; Chen X; Paltarzhytskaya A; Pache?o Y; Muller N; Bovy L; Lei X; Chen W; Ren H; Song C; Lewis LD; Dang-Vu TT; Czisch M; Picchioni D; Duyn J; Peigneux P; Tagliazucchi E; Dresler M;

Sleep research has evolved considerably since the first sleep electroencephalography recordings in the 1930s and the discovery of well-distinguishable sleep stages in the 1950s. While electrophysiological recordings have been used to describe the sleeping brain in much detail, since the 1990s neu ...

Article GUID: 39940102

Author(s): Páez A; Gillman SO; Dogaheh SB; Carnes A; Dakterzada F; Barbé F; Dang-Vu TT; Ripoll GP;

Introduction: Changes in sleep physiology can predate cognitive symptoms by decades in persons with Alzheimer's disease (AD), but it remains unclear which sleep characteristics predict cognitive and neurodegenerative changes after AD onset. Methods: Using data from a prospective cohort of mild to moderate AD (n = 60), we analyzed non-rapid eye moveme ...

Article GUID: 39878233

Author(s): Sforza M; Morin CM; Dang-Vu TT; Pomares FB; Perrault AA; Gouin JP; Bušková J; Janku K; Vgontzas A; Fernandez-Mendoza J; Bastien CH; Riemann D; Baglioni C; Carollo G; Casoni F; Zucconi M; Castronovo V; Galbiati A; Ferini-Strambi L;

Investigating the mechanisms of action of cognitive-behavioural therapy for insomnia (CBT-I), the first-line treatment for chronic insomnia disorder (ID), can contribute to the overall understanding of insomnia and its treatment. To date, no study has examined the relationship between K-complexes ...

Article GUID: 39739397

Author(s): Cheyroux P; Morin AJS; Colombat P; Blechman Y; Gillet N;

This diary study sought to examine the direct and indirect effects of individuals' perceptions of supervisor support and workload during a work week (week 1) on their well-being, satisfaction, and performance at work during the following work week (week 2) as mediated through the quality of their weekend work recovery experiences (psychological detach ...

Article GUID: 39676703

Author(s): Patrick Viet-Quoc N; Thien Thanh DV; Philippe L; Sebastien C; Lidia S; Philippe D;

Objective: This systematic review and meta-analysis evaluates the efficacy in improving sleep quality and safety of hypnotics in individuals aged 65 years or older compared to those under 65 years. Methods: MEDLINE, EMBASE, Web of Science, and EBM Reviews were searched for randomized clinical trials comparing hypnotics to the placebo in adults with chron ...

Article GUID: 39603114