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Network-wide reorganization of procedural memory during NREM sleep revealed by fMRI.

Author(s): Vahdat S, Fogel S, Benali H, Doyon J

Network-wide reorganization of procedural memory during NREM sleep revealed by fMRI.
Elife. 2017 09 11;6:
Authors: Vahdat S, Fogel S, Benali H, Doyon J
Abstract
Sleep is necessary for the optimal consolidation of newly acquired procedural me...

Article GUID: 28892464
SYNERGIC TRIAL (SYNchronizing Exercises, Remedies in Gait and Cognition) a multi-Centre randomized controlled double blind trial to improve gait and cognition in mild cognitive impairment.

Author(s): Montero-Odasso M, Almeida QJ, Burhan AM, Camicioli R, Doyon J, Fraser S, Li K, Liu-Ambrose T, Middleton L, Muir-Hunter S, McIlroy W, Morais ...

BMC Geriatr. 2018 04 16;18(1):93 Authors: Montero-Odasso M, Almeida QJ, Burhan AM, Camicioli R, Doyon J, Fraser S, Li K, Liu-Ambrose T, Middleton L, Muir-Hunter S, McIlroy W, Morais JA, Pieruccini...

Article GUID: 29661156
Integrated fMRI Preprocessing Framework Using Extended Kalman Filter for Estimation of Slice-Wise Motion.

Author(s): Pinsard B, Boutin A, Doyon J, Benali H

Front Neurosci. 2018;12:268 Authors: Pinsard B, Boutin A, Doyon J, Benali H

Article GUID: 29755312
Consensus on Shared Measures of Mobility and Cognition: From the Canadian Consortium on Neurodegeneration in Aging (CCNA).

Author(s): Montero-Odasso M, Almeida QJ, Bherer L, Burhan AM, Camicioli R, Doyon J, Fraser S, Muir-Hunter S, Li KZH, Liu-Ambrose T, McIlroy W, Middleto...

J Gerontol A Biol Sci Med Sci. 2019 May 16;74(6):897-909 Authors: Montero-Odasso M, Almeida QJ, Bherer L, Burhan AM, Camicioli R, Doyon J, Fraser S, Muir-Hunter S, Li KZH, Liu-Ambrose T, McIlroy W...

Article GUID: 30101279
Cerebral Activity Associated with Transient Sleep-Facilitated Reduction in Motor Memory Vulnerability to Interference.

Author(s): Albouy G, King BR, Schmidt C, Desseilles M, Dang-Vu TT, Balteau E, Phillips C, Degueldre C, Orban P, Benali H, Peigneux P, Luxen A, Karni A,...

Sci Rep. 2016 10 11;6:34948 Authors: Albouy G, King BR, Schmidt C, Desseilles M, Dang-Vu TT, Balteau E, Phillips C, Degueldre C, Orban P, Benali H, Peigneux P, Luxen A, Karni A, Doyon J, Maquet P,...

Article GUID: 27725727
Re-stepping into the same river: competition problem rather than a reconsolidation failure in an established motor skill.

Author(s): Gabitov E, Boutin A, Pinsard B, Censor N, Fogel SM, Albouy G, King BR, Benali H, Carrier J, Cohen LG, Karni A, Doyon J

Sci Rep. 2017 08 24;7(1):9406 Authors: Gabitov E, Boutin A, Pinsard B, Censor N, Fogel SM, Albouy G, King BR, Benali H, Carrier J, Cohen LG, Karni A, Doyon J

Article GUID: 28839217
Beyond spindles: interactions between sleep spindles and boundary frequencies during cued reactivation of motor memory representations.

Author(s): Laventure S, Pinsard B, Lungu O, Carrier J, Fogel S, Benali H, Lina JM, Boutin A, Doyon J

Sleep. 2018 Sep 01;41(9): Authors: Laventure S, Pinsard B, Lungu O, Carrier J, Fogel S, Benali H, Lina JM, Boutin A, Doyon J

Article GUID: 30137521
Consolidation alters motor sequence-specific distributed representations.

Author(s): Pinsard B, Boutin A, Gabitov E, Lungu O, Benali H, Doyon J

Elife. 2019 Mar 18;8: Authors: Pinsard B, Boutin A, Gabitov E, Lungu O, Benali H, Doyon J

Article GUID: 30882348
Title:Network-wide reorganization of procedural memory during NREM sleep revealed by fMRI.
Authors:Vahdat S,  Fogel S,  Benali H,  Doyon J
Link:www.ncbi.nlm.nih.gov/pubmed/28892464?dopt=Abstract
DOI:10.7554/eLife.24987
Category:Elife
PMID:28892464
Dept Affiliation: PERFORM
1 Functional Neuroimaging Unit, Cenre de recherche, Institut universitaire de gériatrie de Montréal, Université de Montreal, Québec, Canada.
2 School of Psychology, University of Ottawa, Ontario, Canada.
3 PERFORM Centre, University of Concordia, Montreal, Quebec, Canada.
4 INSERM/UPMC, Pitié-Salpêtrière Hospital, Paris, France.

Description:

Network-wide reorganization of procedural memory during NREM sleep revealed by fMRI.

Elife. 2017 09 11;6:

Authors: Vahdat S, Fogel S, Benali H, Doyon J

Abstract

Sleep is necessary for the optimal consolidation of newly acquired procedural memories. However, the mechanisms by which motor memory traces develop during sleep remain controversial in humans, as this process has been mainly investigated indirectly by comparing pre- and post-sleep conditions. Here, we used functional magnetic resonance imaging and electroencephalography during sleep following motor sequence learning to investigate how newly-formed memory traces evolve dynamically over time. We provide direct evidence for transient reactivation followed by downscaling of functional connectivity in a cortically-dominant pattern formed during learning, as well as gradual reorganization of this representation toward a subcortically-dominant consolidated trace during non-rapid eye movement (NREM) sleep. Importantly, the putamen functional connectivity within the consolidated network during NREM sleep was related to overnight behavioral gains. Our results demonstrate that NREM sleep is necessary for two complementary processes: the restoration and reorganization of newly-learned information during sleep, which underlie human motor memory consolidation.

PMID: 28892464 [PubMed - indexed for MEDLINE]