Longing for a good night's sleep: A memory-based mechanism to improve sleep and cognitive functioning.

Informations projet

MemoSleep

N° de convention de subvention: 677875

DOI

10.3030/677875

Projet clôturé

Date de signature de la CE 25 Mai 2016

Date de début 1 Septembre 2016

Date de fin 28 Février 2022

Financé au titre de

• EXCELLENT SCIENCE - European Research Council (ERC)

Coût total

€ 1 499 565,00

Contribution de l’UE

€ 1 499 565,00

Coordonné par

UNIVERSITE DE FRIBOURG
Switzerland

Periodic Reporting for period 4 - MemoSleep (Longing for a good night's sleep: A memory-based mechanism to improve sleep and cognitive functioning.)

Période du rapport: 2021-03-01 au 2022-02-28

Résumé du contexte et des objectifs généraux du projet

The basic idea of the ERC project is that we are able to influence our sleep with our thoughts due to the unconscious reactivation of these thoughts during sleep. For example, if we think of an important exam coming up the next day before going to bed, this thought is then re-activated repeatedly during sleep. As it is associated with stress, reactivating “exam” disturbs our ongoing sleep. Importantly, if we would manage to activate the thought "rest" or "sleep well" before sleep, this should actually improve our sleep quality. In the project, three main questions are traced: Can we experimentally prove that reactivation of thoughts and concepts influence our sleep? Can this reactivation be used in a positive way - for example generating positive thoughts or intentions while being awake to then sleep better? Can we apply these findings to improve disturbed sleep? As high sleep quality is important for our health and well-being, the results of the project are highly relevant for our society.

Travail effectué depuis le début du projet jusqu’à la fin de la période considérée dans le rapport et principaux résultats atteints jusqu’à présent

We are now at the midterm of the project. So far, we have mainly collected data from healthy participants in our sleep lab in a high number of experimental studies. We could already show that hypnotic suggestions to sleep deeper is able to extend slow-wave sleep (SWS), a sleep stage critical for mental restoration and cognitive functioning. This intervention is only effective in high suggestible participants. In low suggestible participants, we could now show that relaxing music extents SWS and improves subjective sleep quality. Studies in the question of reactivation during sleep are still ongoing.

Progrès au-delà de l’état des connaissances et impact potentiel prévu (y compris l’impact socio-économique et les conséquences sociétales plus larges du projet jusqu’à présent)

We are currently developing relaxation protocols using virtual reality; coupled with methods to reactive these protocols during sleep to improve the restorative function of sleep. In addition, we are validating contactless sleep recording devices and reactivation procedure that can be reliably used in a home setting with minimal disturbance of the sleeper.

Team of the ERC MemoSleep.