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Elia C, de Girolamo L, Clarisse B, Galin M, Rehel S, Clochon P, Doidy F, Segobin S, Viader F, Naveau M, Delcroix N, Segura-Djezzar C, Grellard JM, Lequesne J, Etard O, Martin T, Quarck G, Eustache F, Joly F, Giffard B, Perrier J. Effects of sleep disturbances and circadian rhythms modifications on cognition in breast cancer women before and after adjuvant chemotherapy: the ICANSLEEP-1 protocol. BMC Cancer 2023; 23:1178. [PMID: 38041077 PMCID: PMC10693085 DOI: 10.1186/s12885-023-11664-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 11/21/2023] [Indexed: 12/03/2023] Open
Abstract
BACKGROUND Many patients treated for breast cancer (BC) complain about cognitive difficulties affecting their daily lives. Recently, sleep disturbances and circadian rhythm disruptions have been brought to the fore as potential contributors to cognitive difficulties in patients with BC. Yet, studies on these factors as well as their neural correlates are scarce. The purpose of the ICANSLEEP-1 (Impact of SLEEP disturbances in CANcer) study is to characterize sleep using polysomnography and its relationship with the evolution of cognitive functioning at both the behavioral and the neuroanatomical levels across treatment in BC patients treated or not with adjuvant chemotherapy. METHODS ICANSLEEP-1 is a longitudinal study including BC patients treated with adjuvant chemotherapy (n = 25) or not treated with adjuvant chemotherapy (n = 25) and healthy controls with no history of BC (n = 25) matched for age (45-65 years old) and education level. The evaluations will take place within 6 weeks after inclusion, before the initiation of chemotherapy (for BC patients who are candidates for chemotherapy) or before the first fraction of radiotherapy (for BC patients with no indication for chemotherapy) and 6 months later (corresponding to 2 weeks after the end of chemotherapy). Episodic memory, executive functions, psychological factors, and quality of life will be assessed with validated neuropsychological tests and self-questionnaires. Sleep quantity and quality will be assessed with polysomnography and circadian rhythms with both actigraphy and saliva cortisol. Grey and white matter volumes, as well as white matter microstructural integrity, will be compared across time between patients and controls and will serve to further investigate the relationship between sleep disturbances and cognitive decline. DISCUSSION Our results will help patients and clinicians to better understand sleep disturbances in BC and their relationship with cognitive functioning across treatment. This will aid the identification of more appropriate sleep therapeutic approaches adapted to BC patients. Improving sleep in BC would eventually help limit cognitive deficits and thus improve quality of life during and after treatments. TRIAL REGISTRATION NCT05414357, registered June 10, 2022. PROTOCOL VERSION Version 1.2 dated March 23, 2022.
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Affiliation(s)
- Clara Elia
- Normandie Univ, UNICAEN, PSL Université, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, 14000, France
| | - Laura de Girolamo
- Normandie Univ, UNICAEN, PSL Université, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, 14000, France
| | - Bénédicte Clarisse
- Clinical Research Department, Centre François Baclesse, Caen, 14076, France
| | - Melvin Galin
- Normandie Univ, UNICAEN, PSL Université, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, 14000, France
- Normandie Université, UNICAEN, INSERM, COMETE U1075, CYCERON, CHU Caen, Caen, 14000, France
| | - Stéphane Rehel
- Normandie Univ, UNICAEN, PSL Université, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, 14000, France
| | - Patrice Clochon
- Normandie Univ, UNICAEN, PSL Université, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, 14000, France
| | - Franck Doidy
- Normandie Univ, UNICAEN, PSL Université, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, 14000, France
| | - Shailendra Segobin
- Normandie Univ, UNICAEN, PSL Université, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, 14000, France
| | - Fausto Viader
- Normandie Univ, UNICAEN, PSL Université, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, 14000, France
- Neurology Department, CHU de Caen, Caen, 14000, France
| | - Mikaël Naveau
- Normandie Université, UNICAEN, CNRS UAR 3408, INSERM US-50, GIP Cyceron, Caen, France
| | - Nicolas Delcroix
- Normandie Université, UNICAEN, CNRS UAR 3408, INSERM US-50, GIP Cyceron, Caen, France
| | | | | | - Justine Lequesne
- Clinical Research Department, Centre François Baclesse, Caen, 14076, France
| | - Olivier Etard
- Normandie Université, UNICAEN, INSERM, COMETE U1075, CYCERON, CHU Caen, Caen, 14000, France
| | - Tristan Martin
- Faculty of Sciences and Technologies, Le Mans University, Avenue Olivier Messiaen, Movement, Interactions, Performance, Le Mans, 4334, 72000, MIP, EA, France
| | - Gaëlle Quarck
- Normandie Université, UNICAEN, INSERM, COMETE U1075, CYCERON, CHU Caen, Caen, 14000, France
| | - Francis Eustache
- Normandie Univ, UNICAEN, PSL Université, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, 14000, France
| | - Florence Joly
- Clinical Research Department, Centre François Baclesse, Caen, 14076, France
- Cancer and Cognition Platform, Ligue Nationale Contre le Cancer, Caen, 14076, France
- ANTICIPE (Interdisciplinary Research Unit for the Prevention and Treatment of Cancer), INSERM Unit 1086, Caen, France
| | - Bénédicte Giffard
- Normandie Univ, UNICAEN, PSL Université, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, 14000, France
- Cancer and Cognition Platform, Ligue Nationale Contre le Cancer, Caen, 14076, France
- Pôle des Formations et de Recherche en Santé, 2 rue des Rochambelles, Caen Cedex, CS-14032, France
| | - Joy Perrier
- Normandie Univ, UNICAEN, PSL Université, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, 14000, France.
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Doidy F, Desaunay P, Rebillard C, Clochon P, Lambrechts A, Wantzen P, Guénolé F, Baleyte JM, Eustache F, Bowler DM, Lebreton K, Guillery-Girard B. How scene encoding affects memory discrimination: Analysing eye movements data using data driven methods. Visual Cognition 2023. [DOI: 10.1080/13506285.2023.2188335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
Affiliation(s)
- F. Doidy
- Normandie Université, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
| | - P. Desaunay
- Normandie Université, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
- Service de Psychiatrie de l’enfant et de l’adolescent, CHU de Caen, Caen, France
| | - C. Rebillard
- Normandie Université, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
| | - P. Clochon
- Normandie Université, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
| | - A. Lambrechts
- Autism Research Group, Department of Psychology, City, University of London, London, UK
| | - P. Wantzen
- Normandie Université, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
| | - F. Guénolé
- Normandie Université, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
- Service de Psychiatrie de l’enfant et de l’adolescent, CHU de Caen, Caen, France
| | - J. M. Baleyte
- Normandie Université, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
- Service de Psychiatrie de l’enfant et de l’adolescent, Centre Hospitalier Interuniversitaire de Créteil, Créteil, France
| | - F. Eustache
- Normandie Université, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
| | - D. M. Bowler
- Autism Research Group, Department of Psychology, City, University of London, London, UK
| | - K. Lebreton
- Normandie Université, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
| | - B. Guillery-Girard
- Normandie Université, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
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Desaunay P, Clochon P, Doidy F, Hinault T, Lambrechts A, Wantzen P, Wallois F, Mahmoudzadeh M, Guile JM, Guénolé F, Baleyte JM, Eustache F, Bowler DM, Guillery-Girard B. Intact memory storage but impaired retrieval in visual memory in autism: New insights from an electrophysiological study. Autism Res 2023; 16:99-105. [PMID: 36317823 DOI: 10.1002/aur.2838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 10/12/2022] [Indexed: 11/05/2022]
Abstract
In a recent study on visual episodic memory (Desaunay, Clochon, et al., 2020), we have shown event-related potentials (ERPs) differences associated with priming (150-300 msec), familiarity (350-470 msec), and recollection (600-700 msec), in young people with autism spectrum disorders (ASD) compared with typical development (TD). To go further into the study of the processes of storage and retrieval of the memory trace, we re-analyzed Desaunay, Clochon, et al's data using time-frequency analysis, that is, event-related synchronization and desynchronization (ERS/ERD). This allows a decomposition of the spectral power within frequency bands associated with these ERPs. We focused both on the same time windows and the same regions of interest as previously published. We mainly identified, in ASD compared with TD, reduced ERS in low-frequencies (delta, theta) in early time-windows, and non-significant differences in ERD in higher frequencies (alpha, beta1) in all time-windows. Reduced ERS during recognition confirmed previously reported diminution of priming effects and difficulties in manipulation and retrieval of both semantic and episodic information. Conversely, preserved ERD corroborates a preservation of memory storage processes. These observations are consistent with a cognitive model of memory in ASD, that suggests difficulties in cognitive operations or executive demand at retrieval, subsequent to successful long-term storage of information. LAY SUMMARY: We assessed the EEG synchronization and desynchronization, during visual episodic recognition. We observed, in youth with Autism, reduced synchronization in low-frequencies (delta, theta), suggesting reduced access to and manipulation of long-term stored information. By contrast, non-significant differences in desynchronization at higher frequencies (alpha, beta frequency bands), that support long-term stored semantic and episodic information, suggested preserved memory traces.
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Affiliation(s)
- Pierre Desaunay
- Normandie Univ, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France.,Service de Psychiatrie de l'enfant et de l'adolescent, CHU de Caen, Caen, France
| | - Patrice Clochon
- Normandie Univ, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
| | - Franck Doidy
- Normandie Univ, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
| | - Thomas Hinault
- Normandie Univ, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
| | - Anna Lambrechts
- Autism Research Group, Department of Psychology, City, University of London, London, UK
| | - Prany Wantzen
- Normandie Univ, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
| | - Fabrice Wallois
- Picardie Univ, INSERM, U 1105, CHU Amiens, groupe de recherches sur l'analyse multimodale de la fonction cérébrale, Amiens, France
| | - Mahdi Mahmoudzadeh
- Picardie Univ, INSERM, U 1105, CHU Amiens, groupe de recherches sur l'analyse multimodale de la fonction cérébrale, Amiens, France
| | - Jean-Marc Guile
- Picardie Univ, INSERM, U 1105, CHU Amiens, groupe de recherches sur l'analyse multimodale de la fonction cérébrale, Amiens, France
| | - Fabian Guénolé
- Normandie Univ, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France.,Service de Psychiatrie de l'enfant et de l'adolescent, CHU de Caen, Caen, France
| | - Jean-Marc Baleyte
- Normandie Univ, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France.,Service de Psychiatrie de l'enfant et de l'adolescent, Hôpital Universitaire de Créteil, Créteil, France
| | - Francis Eustache
- Normandie Univ, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
| | - Dermot M Bowler
- Autism Research Group, Department of Psychology, City, University of London, London, UK
| | - Bérengère Guillery-Girard
- Normandie Univ, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
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Wantzen P, Clochon P, Doidy F, Wallois F, Mahmoudzadeh M, Desaunay P, Mille C, Guilé JM, Guénolé F, Eustache F, Baleyte JM, Guillery-Girard B. Correction: EEG resting-state functional connectivity: evidence for an imbalance of external/internal information integration in autism. J Neurodev Disord 2022; 14:55. [PMID: 36244975 PMCID: PMC9575265 DOI: 10.1186/s11689-022-09464-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Legrand N, Etard O, Viader F, Clochon P, Doidy F, Eustache F, Gagnepain P. Attentional capture mediates the emergence and suppression of intrusive memories. iScience 2022; 25:105516. [PMID: 36419855 PMCID: PMC9676635 DOI: 10.1016/j.isci.2022.105516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 07/20/2022] [Accepted: 11/02/2022] [Indexed: 11/07/2022] Open
Abstract
Intrusive memories hijack consciousness and their control may lead to forgetting. However, the contribution of reflexive attention to qualifying a memory signal as interfering is unknown. We used machine learning to decode the brain’s electrical activity and pinpoint the otherwise hidden emergence of intrusive memories reported during a memory suppression task. Importantly, the algorithm was trained on an independent attentional model of visual activity, mimicking either the abrupt and interfering appearance of visual scenes into conscious awareness or their deliberate exploration. Intrusion of memories into conscious awareness were decoded above chance. The decoding accuracy increased when the algorithm was trained using a model of reflexive attention. Conscious detection of intrusive activity decoded from the brain signal was central to the future silencing of suppressed memories and later forgetting. Unwanted memories require the reflexive orienting of attention and access to consciousness to be suppressed effectively by inhibitory control. Emergence of intrusive images during memory suppression is decoded from the EEG signal Intrusive activity was detected using a perceptual model of reflexive attention A common neural system mediates the mental capture of memory and external activity Consciousness of intrusive activity during control predicted forgetting
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Hinault T, Segobin S, Benbrika S, Carluer L, Doidy F, Eustache F, Viader F, Desgranges B. Longitudinal grey matter and metabolic contributions to cognitive changes in amyotrophic lateral sclerosis. Brain Commun 2022; 4:fcac228. [PMID: 36128222 PMCID: PMC9478152 DOI: 10.1093/braincomms/fcac228] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/13/2022] [Accepted: 09/05/2022] [Indexed: 12/05/2022] Open
Abstract
Amyotrophic lateral sclerosis is characterized by rapidly evolving cognitive and brain impairments. While previous work revealed structural and functional alterations associated with cognitive decline in patients suffering from amyotrophic lateral sclerosis, the relationships between anatomo-functional changes and both disease’s progression and the evolution of cognitive performance remain largely unexplored. Here, we took advantage of repeated multi-modal acquisitions in patients with amyotrophic lateral sclerosis over 1 year to assess the longitudinal sequence of grey matter atrophy, glucose metabolism and cognitive changes. Results revealed metabolic and structural changes over frontal, thalamic and temporal regions. Both cortical hypermetabolism and hypometabolism (right temporal gyrus and right angular gyrus, respectively) were associated with cognitive performance and thalamic hypometabolism during the follow-up testing session. Furthermore, the inferior frontal gyrus atrophy mediated the relation between early hypometabolism in this region and the subsequent decline of the theory of mind abilities. Marked volume loss was associated with larger hypometabolism and impaired cognitive performance. To our knowledge, this is the first study to longitudinally examine both grey matter volume and metabolic alteration patterns in patients with amyotrophic lateral sclerosis, over a mean follow-up time of 1 year. We identify how changes of the inferior frontal gyrus critically underly later cognitive performance, shedding new light on its high prognostic significance for amyotrophic lateral sclerosis-related changes. These results have important implications for our understanding of structural and functional changes associated with amyotrophic lateral sclerosis and how they underly cognitive impairments.
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Affiliation(s)
- Thomas Hinault
- Normandie University, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine (NIMH) , Caen 14032 , France
| | - Shailendra Segobin
- Normandie University, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine (NIMH) , Caen 14032 , France
| | - Soumia Benbrika
- Normandie University, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine (NIMH) , Caen 14032 , France
| | - Laurence Carluer
- Normandie University, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine (NIMH) , Caen 14032 , France
| | - Franck Doidy
- Normandie University, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine (NIMH) , Caen 14032 , France
| | - Francis Eustache
- Normandie University, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine (NIMH) , Caen 14032 , France
| | - Fausto Viader
- Normandie University, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine (NIMH) , Caen 14032 , France
| | - Béatrice Desgranges
- Normandie University, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine (NIMH) , Caen 14032 , France
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Coll SY, Eustache F, Doidy F, Fraisse F, Peschanski D, Dayan J, Gagnepain P, Laisney M. Avoidance behaviour generalizes to eye processing in posttraumatic stress disorder. Eur J Psychotraumatol 2022; 13:2044661. [PMID: 35479300 PMCID: PMC9037205 DOI: 10.1080/20008198.2022.2044661] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Avoidance describes any action designed to prevent an uncomfortable situation or emotion from occurring. Although it is a common reaction to trauma, avoidance becomes problematic when it is the primary coping strategy, and plays a major role in the development and maintenance of posttraumatic stress disorder (PTSD). Avoidance in PTSD may generalize to non-harmful environmental cues that are perceived to be unsafe. OBJECTIVE We tested whether avoidance extends to social cues (i.e. emotional gazes) that are unrelated to trauma. METHOD A total of 159 participants (103 who had been exposed to the 2015 Paris terrorist attacks and 56 who had not) performed a gaze-cueing task featuring sad, happy and neutral faces. Attention to the eye area was recorded using an eyetracker. Of the exposed participants, 52 had been diagnosed with PTSD (PTSD+) and 51 had not developed PTSD (PTSD-). As a result of the preprocessing stages, 52 PTSD+ (29 women), 50 PTSD- (20 women) and 53 nonexposed (31 women) participants were included in the final analyses. RESULTS PTSD+ participants looked at sad eyes for significantly less time than PTSD- and nonexposed individuals. This effect was negatively correlated with the intensity of avoidance symptoms. No difference was found for neutral and happy faces. CONCLUSIONS These findings suggest that maladaptive avoidance in PTSD extends to social processing, in terms of eye contact and others' emotions that are unrelated to trauma. New therapeutic directions could include targeting sociocognitive deficits. Our findings open up new and indirect avenues for overcoming maladaptive avoidance behaviours by remediating eye processing.Trial registration: ClinicalTrials.gov identifier: NCT02810197. HIGHLIGHTS Avoidance is a key symptom of posttraumatic stress disorder (PTSD).Avoidance is often viewed as limited to reminders linked to the trauma.Results show that attention to the eyes of sad faces is also affected by PTSD. This effect is correlated with avoidance symptoms in PTSD.
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Affiliation(s)
- Sélim Yahia Coll
- Neuropsychologie et Imagerie de la Mémoire Humaine, Normandie Univ, UNICAEN, PSL Université Recherche, EPHE, INSERM, Caen, France.,Neurorehabilitation divison, Université de Genève, Beau-Séjour hospital, Geneva, Switzerland.,Neuroscience of Emotions and Affective Dynamics laboratory, Geneva, Switzerland
| | - Francis Eustache
- Neuropsychologie et Imagerie de la Mémoire Humaine, Normandie Univ, UNICAEN, PSL Université Recherche, EPHE, INSERM, Caen, France
| | - Franck Doidy
- Neuropsychologie et Imagerie de la Mémoire Humaine, Normandie Univ, UNICAEN, PSL Université Recherche, EPHE, INSERM, Caen, France
| | - Florence Fraisse
- Neuropsychologie et Imagerie de la Mémoire Humaine, Normandie Univ, UNICAEN, PSL Université Recherche, EPHE, INSERM, Caen, France
| | - Denis Peschanski
- Université Paris I Panthéon Sorbonne, HESAM Université, EHESS, CNRS, Paris, France
| | - Jacques Dayan
- Neuropsychologie et Imagerie de la Mémoire Humaine, Normandie Univ, UNICAEN, PSL Université Recherche, EPHE, INSERM, Caen, France.,Centre Hospitalier Guillaume Régnier, Pôle Hospitalo-Universitaire de Psychiatrie de l'Enfant et de l'Adolescent, Rennes, France
| | - Pierre Gagnepain
- Neuropsychologie et Imagerie de la Mémoire Humaine, Normandie Univ, UNICAEN, PSL Université Recherche, EPHE, INSERM, Caen, France
| | - Mickaël Laisney
- Neuropsychologie et Imagerie de la Mémoire Humaine, Normandie Univ, UNICAEN, PSL Université Recherche, EPHE, INSERM, Caen, France
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Benbrika S, Doidy F, Carluer L, Mondou A, Pélerin A, Eustache F, Viader F, Desgranges B. Longitudinal Study of Cognitive and Emotional Alterations in Amyotrophic Lateral Sclerosis: Clinical and Imaging Data. Front Neurol 2021; 12:620198. [PMID: 34305771 PMCID: PMC8296637 DOI: 10.3389/fneur.2021.620198] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 05/24/2021] [Indexed: 11/13/2022] Open
Abstract
Objectives: Extra-motor manifestations occur in 50% of patients with amyotrophic lateral sclerosis (ALS). These mainly concern cognition, emotional processing and behavior. Depression and anxiety are less frequent. Little is known about how these manifestations change as the disease progresses. Similarly, although cortical thinning has been well-documented at disease onset, there are scant data about cortical thinning over time and how this correlates with extra-motor manifestations. The present study therefore assessed cognitive, emotional and psychological state and cortical thinning in a group of patients with ALS at baseline and after a follow-up period. Methods: We assessed executive functions, facial emotion recognition, depressive and anxious symptoms, and cortical thinning in 43 patients with ALS at baseline, comparing them with 28 healthy controls, and 21 of them 9 months later. We looked for links among the extra-motor manifestations and correlations with cortical thickness. Results: At baseline, patients had poor executive function and recognition of complex emotions from the eyes, and more anxious and depressive symptoms than controls. At follow-up, only inhibition abilities had worsened. Cortical thinning was observed in bilateral pre-central regions and other parts of the cerebral cortex at baseline. Over time, it worsened in motor and extra-motor areas. Executive functions correlated with thinning in the middle and inferior frontal gyrus and orbitofrontal cortex. Conclusions: During follow-up, there was little deterioration in extra-motor manifestations and psychological state, despite continuing cortical thinning. Patients with affective Theory of Mind (ToM) changes seemed less depressed than the others. Impaired mental flexibility was subtended by prefrontal regions with cortical thinning.
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Affiliation(s)
- Soumia Benbrika
- Normandie Univ, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
| | - Franck Doidy
- Normandie Univ, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
| | - Laurence Carluer
- Normandie Univ, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
| | - Audrey Mondou
- Normandie Univ, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
| | - Alice Pélerin
- Normandie Univ, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
| | - Francis Eustache
- Normandie Univ, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
| | - Fausto Viader
- Normandie Univ, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
| | - Béatrice Desgranges
- Normandie Univ, UNICAEN, PSL Université Paris, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France
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9
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Legrand N, Etard O, Vandevelde A, Pierre M, Viader F, Clochon P, Doidy F, Peschanski D, Eustache F, Gagnepain P. Long-term modulation of cardiac activity induced by inhibitory control over emotional memories. Sci Rep 2020; 10:15008. [PMID: 32929105 PMCID: PMC7490349 DOI: 10.1038/s41598-020-71858-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 07/26/2020] [Indexed: 12/15/2022] Open
Abstract
Efforts to exclude past experiences from conscious awareness can lead to forgetting. Memory suppression is central to affective disorders, but we still do not really know whether emotions, including their physiological causes, are also impacted by this process in normal functioning individuals. In two studies, we measured the after-effects of suppressing negative memories on cardiac response in healthy participants. Results of Study 1 revealed that efficient control of memories was associated with long-term inhibition of the cardiac deceleration that is normally induced by disgusting stimuli. Attempts to suppress sad memories, by contrast, aggravated the cardiac response, an effect that was closely related to the inability to forget this specific material. In Study 2, electroencephalography revealed a reduction in power in the theta (3-8 Hz), alpha (8-12 Hz) and low-beta (13-20 Hz) bands during the suppression of unwanted memories, compared with their voluntary recall. Interestingly, however, the reduction of power in the theta frequency band during memory control was related to a subsequent inhibition of the cardiac response. These results provide a neurophysiological basis for the influence of memory control mechanisms on the cardiac system, opening up new avenues and questions for treating intrusive memories using motivated forgetting.
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Affiliation(s)
- Nicolas Legrand
- Neuropsychologie et Imagerie de la Mémoire Humaine, Normandie Université, UNICAEN, PSL Research University, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Caen, France
| | - Olivier Etard
- Service d'Explorations Fonctionnelles du Système Nerveux, CHU de Caen, Caen, France
- Imagerie et Stratégies Thérapeutiques de la Schizophrénie, Normandie Univ, UNICAEN, ISTS EA 7466, GIP Cyceron, Caen, France
| | - Anaïs Vandevelde
- Imagerie et Stratégies Thérapeutiques de la Schizophrénie, Normandie Univ, UNICAEN, ISTS EA 7466, GIP Cyceron, Caen, France
| | - Melissa Pierre
- Neuropsychologie et Imagerie de la Mémoire Humaine, Normandie Université, UNICAEN, PSL Research University, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Caen, France
| | - Fausto Viader
- Neuropsychologie et Imagerie de la Mémoire Humaine, Normandie Université, UNICAEN, PSL Research University, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Caen, France
| | - Patrice Clochon
- Neuropsychologie et Imagerie de la Mémoire Humaine, Normandie Université, UNICAEN, PSL Research University, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Caen, France
| | - Franck Doidy
- Neuropsychologie et Imagerie de la Mémoire Humaine, Normandie Université, UNICAEN, PSL Research University, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Caen, France
| | - Denis Peschanski
- European Center for Sociology and Political Science (CESSP), Université Paris I Panthéon Sorbonne, HESAM Université, EHESS, CNRS, UMR8209, Paris, France
| | - Francis Eustache
- Neuropsychologie et Imagerie de la Mémoire Humaine, Normandie Université, UNICAEN, PSL Research University, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Caen, France
| | - Pierre Gagnepain
- Neuropsychologie et Imagerie de la Mémoire Humaine, Normandie Université, UNICAEN, PSL Research University, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Caen, France.
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10
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Benbrika S, Doidy F, Carluer L, Mondou A, Buhour MS, Eustache F, Viader F, Desgranges B. Alexithymia in Amyotrophic Lateral Sclerosis and Its Neural Correlates. Front Neurol 2018; 9:566. [PMID: 30087649 PMCID: PMC6066614 DOI: 10.3389/fneur.2018.00566] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 06/22/2018] [Indexed: 12/11/2022] Open
Abstract
Introduction: Amyotrophic lateral sclerosis (ALS) is a severe neurodegenerative disease that causes progressive and extensive motor deficits. Patients may also have cognitive impairments or alteration of emotional processing. Very few studies, however, have looked at deficits in how they experience their own feelings (alexithymia). Methods: We assessed alexithymia in 28 patients with ALS using the 20-item Toronto Alexithymia Scale (TAS-20), comparing them with a control group matched for sex, age, and education level. We took into account both the total score of the TAS-20 and its three subscores corresponding to the three dimensions of alexithymia: Difficulty Identifying Feelings (DIF), Difficulty Describing Feelings (DDF), and Externally Oriented Thinking (EOT). Patients also underwent a neuropsychological assessment and anatomical magnetic resonance imaging (MRI) in order to correlate cognitive performances and gray matter volume and level of alexithymia. Results: On average, ALS subjects had a significantly higher total score and DIF sub-score of the TAS-20 than controls indicating an increased alexithymia in patients. Total and DIF Scores correlated significantly and negatively to gray matter volume of the prefrontal cortex, right superior temporal pole and parahippocampal gyri. No correlations were found between scores on executive functions and those on the TAS-20. Conclusion: The first stage of one's own emotional processing seems to be affected in ALS independently of executive dysfunction. This trouble seems to be underpinned by cerebral regions that are well known to be both implicated in alexithymia in healthy subjects and altered in ALS.
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Affiliation(s)
- Soumia Benbrika
- Neuropsychology and Imaging of Human Memory, Caen-Normandy University, PSL Research University, EPHE, INSERM, Caen University Hospital, Caen, France
| | - Franck Doidy
- Neuropsychology and Imaging of Human Memory, Caen-Normandy University, PSL Research University, EPHE, INSERM, Caen University Hospital, Caen, France
| | - Laurence Carluer
- Neuropsychology and Imaging of Human Memory, Caen-Normandy University, PSL Research University, EPHE, INSERM, Caen University Hospital, Caen, France
| | - Audrey Mondou
- Neuropsychology and Imaging of Human Memory, Caen-Normandy University, PSL Research University, EPHE, INSERM, Caen University Hospital, Caen, France
| | - Marie-Sonia Buhour
- Neuropsychology and Imaging of Human Memory, Caen-Normandy University, PSL Research University, EPHE, INSERM, Caen University Hospital, Caen, France
| | - Francis Eustache
- Neuropsychology and Imaging of Human Memory, Caen-Normandy University, PSL Research University, EPHE, INSERM, Caen University Hospital, Caen, France
| | - Fausto Viader
- Neuropsychology and Imaging of Human Memory, Caen-Normandy University, PSL Research University, EPHE, INSERM, Caen University Hospital, Caen, France
| | - Béatrice Desgranges
- Neuropsychology and Imaging of Human Memory, Caen-Normandy University, PSL Research University, EPHE, INSERM, Caen University Hospital, Caen, France
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11
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Buhour MS, Doidy F, Mondou A, Pélerin A, Carluer L, Eustache F, Viader F, Desgranges B. Voxel-based mapping of grey matter volume and glucose metabolism profiles in amyotrophic lateral sclerosis. EJNMMI Res 2017; 7:21. [PMID: 28266002 PMCID: PMC5339262 DOI: 10.1186/s13550-017-0267-2] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 02/18/2017] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Amyotrophic lateral sclerosis (ALS) is a rapidly progressive disease of the nervous system involving both upper and lower motor neurons. The patterns of structural and metabolic brain alterations are still unclear. Several studies using anatomical MRI yielded a number of discrepancies in their results, and a few PET studies investigated the effect of ALS on cerebral glucose metabolism. The aim of this study was threefold: to highlight the patterns of grey matter (GM) atrophy, hypometabolism and hypermetabolism in patients with ALS, then to understand the neurobehavioral significance of hypermetabolism and, finally, to investigate the regional differences between the morphologic and functional changes in ALS patients, using a specially designed voxel-based method. Thirty-seven patients with ALS and 37 age- and sex-matched healthy individuals underwent both structural MRI and 18[F]-fluorodeoxyglucose (FDG) PET examinations. PET data were corrected for partial volume effects. Structural and metabolic abnormalities were examined in ALS patients compared with control subjects using two-sample t tests in statistical parametric mapping (SPM). Then, we extracted the metabolic values of clusters presenting hypermetabolism to correlate with selected cognitive scores. Finally, GM atrophy and hypometabolism patterns were directly compared with a one-paired t test in SPM. RESULTS We found GM atrophy as well as hypometabolism in motor and extra motor regions and hypermetabolism in medial temporal lobe and cerebellum. We observed negative correlations between the metabolism of the right and left parahippocampal gyri and episodic memory and between the metabolism of right temporal pole and cognitive theory of mind. GM atrophy predominated in the temporal pole, left hippocampus and right thalamus, while hypometabolism predominated in a single cluster in the left frontal superior medial cortex. CONCLUSIONS Our findings provide direct evidence of regional variations in the hierarchy and relationships between GM atrophy and hypometabolism in ALS. Moreover, the 18FDG-PET investigation suggests that cerebral hypermetabolism is deleterious to cognitive function in ALS.
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Affiliation(s)
- M-S Buhour
- Normandie Univ, UNICAEN, EPHE, INSERM, U1077, CHU de Caen, Neuropsychologie et Imagerie de la Mémoire Humaine, 14000, Caen, France
| | - F Doidy
- Normandie Univ, UNICAEN, EPHE, INSERM, U1077, CHU de Caen, Neuropsychologie et Imagerie de la Mémoire Humaine, 14000, Caen, France
| | - A Mondou
- Normandie Univ, UNICAEN, EPHE, INSERM, U1077, CHU de Caen, Neuropsychologie et Imagerie de la Mémoire Humaine, 14000, Caen, France
| | - A Pélerin
- Normandie Univ, UNICAEN, EPHE, INSERM, U1077, CHU de Caen, Neuropsychologie et Imagerie de la Mémoire Humaine, 14000, Caen, France
| | - L Carluer
- Normandie Univ, UNICAEN, EPHE, INSERM, U1077, CHU de Caen, Neuropsychologie et Imagerie de la Mémoire Humaine, 14000, Caen, France
| | - F Eustache
- Normandie Univ, UNICAEN, EPHE, INSERM, U1077, CHU de Caen, Neuropsychologie et Imagerie de la Mémoire Humaine, 14000, Caen, France
| | - F Viader
- Normandie Univ, UNICAEN, EPHE, INSERM, U1077, CHU de Caen, Neuropsychologie et Imagerie de la Mémoire Humaine, 14000, Caen, France
| | - B Desgranges
- Normandie Univ, UNICAEN, EPHE, INSERM, U1077, CHU de Caen, Neuropsychologie et Imagerie de la Mémoire Humaine, 14000, Caen, France.
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12
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Desaunay P, Clochon P, Doidy F, Lambrechts A, Bowler DM, Gérardin P, Baleyte JM, Eustache F, Guillery-Girard B. Impact of Semantic Relatedness on Associative Memory: An ERP Study. Front Hum Neurosci 2017; 11:335. [PMID: 28706479 PMCID: PMC5489662 DOI: 10.3389/fnhum.2017.00335] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 06/12/2017] [Indexed: 11/29/2022] Open
Abstract
Encoding and retrieval processes in memory for pairs of pictures are thought to be influenced by inter-item similarity and by features of individual items. Using Event-Related Potentials (ERP), we aimed to identify how these processes impact on both the early mid-frontal FN400 and the Late Positive Component (LPC) potentials during associative retrieval of pictures. Twenty young adults undertook a sham task, using an incidental encoding of semantically related and unrelated pairs of drawings. At test, we conducted a recognition task in which participants were asked to identify target identical pairs of pictures, which could be semantically related or unrelated, among new and rearranged pairs. We observed semantic (related and unrelated pairs) and condition effects (old, rearranged and new pairs) on the early mid-frontal potential. First, a lower amplitude was shown for identical and rearranged semantically related pairs, which might reflect a retrieval process driven by semantic cues. Second, among semantically unrelated pairs, we found a larger negativity for identical pairs, compared to rearranged and new ones, suggesting additional retrieval processing that focuses on associative information. We also observed an LPC old/new effect with a mid-parietal and a right occipito-parietal topography for semantically related and unrelated old pairs, demonstrating a recollection phenomenon irrespective of the degree of association. These findings suggest that associative recognition using visual stimuli begins at early stages of retrieval, and differs according to the degree of semantic relatedness among items. However, either strategy may ultimately lead to recollection processes.
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Affiliation(s)
- Pierre Desaunay
- Normandie Univ, UNICAEN, PSL Research University, EPHE, INSERM, U1077, CHU de Caen, Neuropsychologie et Imagerie de la Mémoire HumaineCaen, France.,Fédération Hospitalo-Universitaire de Psychiatrie de l'Enfant et de l'AdolescentRouen, France
| | - Patrice Clochon
- Normandie Univ, UNICAEN, PSL Research University, EPHE, INSERM, U1077, CHU de Caen, Neuropsychologie et Imagerie de la Mémoire HumaineCaen, France
| | - Franck Doidy
- Normandie Univ, UNICAEN, PSL Research University, EPHE, INSERM, U1077, CHU de Caen, Neuropsychologie et Imagerie de la Mémoire HumaineCaen, France
| | - Anna Lambrechts
- Normandie Univ, UNICAEN, PSL Research University, EPHE, INSERM, U1077, CHU de Caen, Neuropsychologie et Imagerie de la Mémoire HumaineCaen, France.,Department of Psychology, City, University of LondonLondon, United Kingdom
| | - Dermot M Bowler
- Normandie Univ, UNICAEN, PSL Research University, EPHE, INSERM, U1077, CHU de Caen, Neuropsychologie et Imagerie de la Mémoire HumaineCaen, France.,Department of Psychology, City, University of LondonLondon, United Kingdom
| | - Priscille Gérardin
- Fédération Hospitalo-Universitaire de Psychiatrie de l'Enfant et de l'AdolescentRouen, France
| | - Jean-Marc Baleyte
- Normandie Univ, UNICAEN, PSL Research University, EPHE, INSERM, U1077, CHU de Caen, Neuropsychologie et Imagerie de la Mémoire HumaineCaen, France.,Service de Psychiatrie de l'enfant et de l'adolescent, Centre Hospitalier Intercommunal de CréteilCréteil, France
| | - Francis Eustache
- Normandie Univ, UNICAEN, PSL Research University, EPHE, INSERM, U1077, CHU de Caen, Neuropsychologie et Imagerie de la Mémoire HumaineCaen, France
| | - Bérengère Guillery-Girard
- Normandie Univ, UNICAEN, PSL Research University, EPHE, INSERM, U1077, CHU de Caen, Neuropsychologie et Imagerie de la Mémoire HumaineCaen, France
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13
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Jonin P, Vichard H, Doidy F, Pélerin A, Merck C, Eustache F, La Sayette V, Belliard S, Desgranges B, Chételat G. O3–09–06: Cognitive and neural substrates of learning impairment in prodromal Alzheimer's disease. Alzheimers Dement 2013. [DOI: 10.1016/j.jalz.2013.04.290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
| | | | - Franck Doidy
- Inserm U1077, Université de Caen Basse‐Normandie Ecole Pratique des Hautes Etudes, CHU de Caen Caen France
| | - Alice Pélerin
- Inserm U1077, Université de Caen Basse‐Normandie Ecole Pratique des Hautes Etudes, CHU de Caen Caen France
| | | | - Francis Eustache
- Inserm U1077, Université de Caen Basse‐Normandie Ecole Pratique des Hautes Etudes, CHU de Caen Caen France
| | - Vincent La Sayette
- Inserm U1077, Université de Caen Basse‐Normandie Ecole Pratique des Hautes Etudes, CHU de Caen Caen France
| | - Serge Belliard
- Inserm U1077, Université de Caen Basse‐Normandie Ecole Pratique des Hautes Etudes, CHU de Caen Caen France
| | - Béatrice Desgranges
- CHU Pontchaillou Rennes France
- Inserm U1077 Université de Caen Basse‐Normandie, Ecole Pratique des Hautes Etudes, CHU de Caen Caen France
| | - Gael Chételat
- Inserm U1077, Université de Caen Basse‐Normandie Ecole Pratique des Hautes Etudes, CHU de Caen Caen France
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Harand C, Bertran F, Doidy F, Guénolé F, Desgranges B, Eustache F, Rauchs G. How aging affects sleep-dependent memory consolidation? Front Neurol 2012; 3:8. [PMID: 22347209 PMCID: PMC3270392 DOI: 10.3389/fneur.2012.00008] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2011] [Accepted: 01/10/2012] [Indexed: 01/16/2023] Open
Abstract
Memories are not stored as they were initially encoded but rather undergo a gradual reorganization process, termed memory consolidation. Numerous data indicate that sleep plays a major role in this process, notably due to the specific neurochemical environment and the electrophysiological activity observed during the night. Two putative, probably not exclusive, models ("hippocampo-neocortical dialogue" and "synaptic homeostasis hypothesis") have been proposed to explain the beneficial effect of sleep on memory processes. However, all data gathered until now emerged from studies conducted in young subjects. The investigation of the relationships between sleep and memory in older adults has sparked off little interest until recently. Though, aging is characterized by memory impairment, changes in sleep architecture, as well as brain and neurochemical alterations. All these elements suggest that sleep-dependent memory consolidation may be impaired or occurs differently in older adults. This review outlines the mechanisms governing sleep-dependent memory consolidation, and the crucial points of this complex process that may dysfunction and result in impaired memory consolidation in aging.
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