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Pesonen AK, Koskinen MK, Vuorenhela N, Halonen R, Mäkituuri S, Selin M, Luokkala S, Suutari A, Hovatta I. The effect of REM-sleep disruption on affective processing: A systematic review of human and animal experimental studies. Neurosci Biobehav Rev 2024; 162:105714. [PMID: 38729279 DOI: 10.1016/j.neubiorev.2024.105714] [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: 12/08/2023] [Revised: 04/15/2024] [Accepted: 05/04/2024] [Indexed: 05/12/2024]
Abstract
Evidence on the importance of rapid-eye-movement sleep (REMS) in processing emotions is accumulating. The focus of this systematic review is the outcomes of experimental REMS deprivation (REMSD), which is the most common method in animal models and human studies on REMSD. This review revealed that variations in the applied REMSD methods were substantial. Animal models used longer deprivation protocols compared with studies in humans, which mostly reported acute deprivation effects after one night. Studies on animal models showed that REMSD causes aggressive behavior, increased pain sensitivity, reduced sexual behavior, and compromised consolidation of fear memories. Animal models also revealed that REMSD during critical developmental periods elicits lasting consequences on affective-related behavior. The few human studies revealed increases in pain sensitivity and suggest stronger consolidation of emotional memories after REMSD. As pharmacological interventions (such as selective serotonin reuptake inhibitors [SSRIs]) may suppress REMS for long periods, there is a clear gap in knowledge regarding the effects and mechanisms of chronic REMS suppression in humans.
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Affiliation(s)
- Anu-Katriina Pesonen
- SleepWell Research Program and Department of Psychology and Logopedics Faculty of Medicine, University of Helsinki, Haartmaninkatu 3, 00014, Finland.
| | - Maija-Kreetta Koskinen
- SleepWell Research Program and Department of Psychology and Logopedics Faculty of Medicine, University of Helsinki, Haartmaninkatu 3, 00014, Finland
| | - Neea Vuorenhela
- SleepWell Research Program and Department of Psychology and Logopedics Faculty of Medicine, University of Helsinki, Haartmaninkatu 3, 00014, Finland
| | - Risto Halonen
- SleepWell Research Program and Department of Psychology and Logopedics Faculty of Medicine, University of Helsinki, Haartmaninkatu 3, 00014, Finland
| | - Saara Mäkituuri
- SleepWell Research Program and Department of Psychology and Logopedics Faculty of Medicine, University of Helsinki, Haartmaninkatu 3, 00014, Finland
| | - Maikki Selin
- SleepWell Research Program and Department of Psychology and Logopedics Faculty of Medicine, University of Helsinki, Haartmaninkatu 3, 00014, Finland
| | - Sanni Luokkala
- SleepWell Research Program and Department of Psychology and Logopedics Faculty of Medicine, University of Helsinki, Haartmaninkatu 3, 00014, Finland
| | - Alma Suutari
- SleepWell Research Program and Department of Psychology and Logopedics Faculty of Medicine, University of Helsinki, Haartmaninkatu 3, 00014, Finland
| | - Iiris Hovatta
- SleepWell Research Program and Department of Psychology and Logopedics Faculty of Medicine, University of Helsinki, Haartmaninkatu 3, 00014, Finland
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Yuksel C, Watford L, Muranaka M, McCoy E, Lax H, Mendelsohn AK, Oliver KI, Daffre C, Acosta A, Vidrin A, Martinez U, Lasko N, Orr S, Pace-Schott EF. REM disruption and REM Vagal Activity Predict Extinction Recall in Trauma-Exposed Individuals. bioRxiv 2024:2023.09.28.560007. [PMID: 37808660 PMCID: PMC10557699 DOI: 10.1101/2023.09.28.560007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Accumulating evidence suggests that rapid eye movement sleep (REM) supports the consolidation of extinction memory. REM is disrupted in PTSD, and REM abnormalities after traumatic events increase the risk of developing PTSD. Therefore, it was hypothesized that abnormal REM in trauma-exposed individuals may pave the way for PTSD by interfering with the processing of extinction memory. In addition, PTSD patients display reduced vagal activity. Vagal activity contributes to the strengthening of memories, including fear extinction memory, and recent studies show that the role of vagus in memory processing extends to memory consolidation during sleep. Therefore, it is plausible that reduced vagal activity during sleep in trauma-exposed individuals may be an additional mechanism that impairs extinction memory consolidation. However, to date, the contribution of sleep vagal activity to the consolidation of extinction memory or any emotional memory has not been investigated. To test these hypotheses, we examined the association of extinction memory with REM characteristics and REM vagal activity (indexed as heart rate variability) in a large sample of trauma-exposed individuals (n=113). Consistent with our hypotheses, REM disruption was associated with poorer physiological and explicit extinction memory. Furthermore, higher vagal activity during REM was associated with better explicit extinction memory, and physiological extinction memory in males. These findings support the notion that abnormal REM may contribute to PTSD by impairing the consolidation of extinction memory and indicate the potential utility of interventions that target REM sleep characteristics and REM vagal activity in fear-related disorders.
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Affiliation(s)
- Cagri Yuksel
- McLean Hospital, Belmont, MA
- Department of Psychiatry, Harvard Medical School, Boston, MA
| | | | | | | | - Hannah Lax
- McLean Hospital, Belmont, MA
- Department of Psychiatry, Massachusetts General Hospital, Charlestown, MA
| | - Augustus Kram Mendelsohn
- Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA
- Department of Psychiatry, Massachusetts General Hospital, Charlestown, MA
| | - Katelyn I. Oliver
- Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA
- Department of Psychiatry, Massachusetts General Hospital, Charlestown, MA
| | - Carolina Daffre
- Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA
- Department of Psychiatry, Massachusetts General Hospital, Charlestown, MA
| | - Alexis Acosta
- Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA
- Department of Psychiatry, Massachusetts General Hospital, Charlestown, MA
| | - Abegail Vidrin
- Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA
- Department of Psychiatry, Massachusetts General Hospital, Charlestown, MA
| | - Uriel Martinez
- Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA
- Department of Psychiatry, Massachusetts General Hospital, Charlestown, MA
| | - Natasha Lasko
- Department of Psychiatry, Harvard Medical School, Boston, MA
- Department of Psychiatry, Massachusetts General Hospital, Boston, MA
| | - Scott Orr
- Department of Psychiatry, Harvard Medical School, Boston, MA
- Department of Psychiatry, Massachusetts General Hospital, Boston, MA
| | - Edward F. Pace-Schott
- Department of Psychiatry, Harvard Medical School, Boston, MA
- Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA
- Department of Psychiatry, Massachusetts General Hospital, Charlestown, MA
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3
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Cabrera Y, Koymans KJ, Poe GR, Kessels HW, Van Someren EJW, Wassing R. Overnight neuronal plasticity and adaptation to emotional distress. Nat Rev Neurosci 2024; 25:253-271. [PMID: 38443627 DOI: 10.1038/s41583-024-00799-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/01/2024] [Indexed: 03/07/2024]
Abstract
Expressions such as 'sleep on it' refer to the resolution of distressing experiences across a night of sound sleep. Sleep is an active state during which the brain reorganizes the synaptic connections that form memories. This Perspective proposes a model of how sleep modifies emotional memory traces. Sleep-dependent reorganization occurs through neurophysiological events in neurochemical contexts that determine the fates of synapses to grow, to survive or to be pruned. We discuss how low levels of acetylcholine during non-rapid eye movement sleep and low levels of noradrenaline during rapid eye movement sleep provide a unique window of opportunity for plasticity in neuronal representations of emotional memories that resolves the associated distress. We integrate sleep-facilitated adaptation over three levels: experience and behaviour, neuronal circuits, and synaptic events. The model generates testable hypotheses for how failed sleep-dependent adaptation to emotional distress is key to mental disorders, notably disorders of anxiety, depression and post-traumatic stress with the common aetiology of insomnia.
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Affiliation(s)
- Yesenia Cabrera
- Department of Integrative Biology and Physiology, Brain Research Institute, University of California Los Angeles, Los Angeles, CA, USA
| | - Karin J Koymans
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, Netherlands
| | - Gina R Poe
- Department of Integrative Biology and Physiology, Brain Research Institute, University of California Los Angeles, Los Angeles, CA, USA
| | - Helmut W Kessels
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, Netherlands
- Department of Synaptic Plasticity and Behaviour, Netherlands Institute for Neuroscience, An Institute of the Royal Netherlands Society for Arts and Sciences, Amsterdam, Netherlands
| | - Eus J W Van Someren
- Department of Sleep and Cognition, Netherlands Institute for Neuroscience, An Institute of the Royal Netherlands Society for Arts and Sciences, Amsterdam, Netherlands
- Department of Integrative Neurophysiology and Psychiatry, VU University, Amsterdam UMC, Amsterdam, Netherlands
- Center for Neurogenomics and Cognitive Research, VU University, Amsterdam UMC, Amsterdam, Netherlands
| | - Rick Wassing
- Sleep and Circadian Research, Woolcock Institute of Medical Research, Macquarie University, Sydney, New South Wales, Australia.
- School of Psychological Sciences, Faculty of Medicine Health and Human Sciences, Macquarie University, Sydney, New South Wales, Australia.
- Sydney Local Health District, Sydney, New South Wales, Australia.
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4
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Vuong V, Mellor A, Risbrough VB, Bei B, Drummond SPA. Protocol for a randomized controlled study examining the role of rapid eye movement sleep in fear-related mechanisms: rapid eye movement fragmentation and fear inhibition in adults with insomnia disorders before and after cognitive behavioral therapy for insomnia. Sleep Adv 2023; 4:zpad030. [PMID: 37663035 PMCID: PMC10474912 DOI: 10.1093/sleepadvances/zpad030] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 07/05/2023] [Indexed: 09/05/2023]
Abstract
Insomnia confers a 2.5-to-3-fold risk of developing posttraumatic stress disorder (PTSD) after a traumatic event. The mechanism underlying this increased risk, however, remains unknown. We postulate insomnia may contribute to PTSD by disrupting rapid eye movement (REM) sleep, as REM sleep disruption has been shown to impair fear inhibitory processes, which are central to the natural recovery from trauma. To test this hypothesis, the following protocol aims to: (1) examine the relationship between REM sleep and fear inhibition in insomnia, and (2) examine whether reducing REM fragmentation by treating insomnia, in turn, improves fear inhibition. Ninety-two adults with Insomnia Disorder will be block randomized (1:1; stratified by sex) to an active treatment (7 weekly sessions of Cognitive Behavioral Therapy for Insomnia (CBT-I) via telehealth) or waitlist control condition. REM sleep (latent variable derived from REM %, REM efficiency, and REM latency) and fear inhibition (i.e. safety signal and extinction recall) will be assessed pre- and post-treatment in a 4 night/3 day testing protocol via at-home polysomnography and the fear-potentiated startle paradigm, respectively. Fear extinction recall will serve as the primary outcome, while safety signal recall will serve as the secondary outcome. In summary, this study aims to test an underlying mechanism potentially explaining why insomnia greatly increases PTSD risk, while demonstrating an existing clinical intervention (CBT-I) can be used to improve this mechanism. Findings will have potential clinical implications for novel approaches in the prevention, early intervention, and treatment of PTSD.
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Affiliation(s)
- Vivien Vuong
- School of Psychological Sciences, The Turner Institute for Brain and Mental Health, Monash University, Clayton, VIC, Australia
| | - Alix Mellor
- School of Psychological Sciences, The Turner Institute for Brain and Mental Health, Monash University, Clayton, VIC, Australia
| | - Victoria B Risbrough
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA
- Centre of Excellence for Stress and Mental Health, VA San Diego Healthcare System, La Jolla, CA, USA
| | - Bei Bei
- School of Psychological Sciences, The Turner Institute for Brain and Mental Health, Monash University, Clayton, VIC, Australia
| | - Sean P A Drummond
- School of Psychological Sciences, The Turner Institute for Brain and Mental Health, Monash University, Clayton, VIC, Australia
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5
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Lewis MW, Webb CA, Kuhn M, Akman E, Jobson SA, Rosso IM. Predicting Fear Extinction in Posttraumatic Stress Disorder. Brain Sci 2023; 13:1131. [PMID: 37626488 PMCID: PMC10452660 DOI: 10.3390/brainsci13081131] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/21/2023] [Accepted: 07/26/2023] [Indexed: 08/27/2023] Open
Abstract
Fear extinction is the basis of exposure therapies for posttraumatic stress disorder (PTSD), but half of patients do not improve. Predicting fear extinction in individuals with PTSD may inform personalized exposure therapy development. The participants were 125 trauma-exposed adults (96 female) with a range of PTSD symptoms. Electromyography, electrocardiogram, and skin conductance were recorded at baseline, during dark-enhanced startle, and during fear conditioning and extinction. Using a cross-validated, hold-out sample prediction approach, three penalized regressions and conventional ordinary least squares were trained to predict fear-potentiated startle during extinction using 50 predictor variables (5 clinical, 24 self-reported, and 21 physiological). The predictors, selected by penalized regression algorithms, were included in multivariable regression analyses, while univariate regressions assessed individual predictors. All the penalized regressions outperformed OLS in prediction accuracy and generalizability, as indexed by the lower mean squared error in the training and holdout subsamples. During early extinction, the consistent predictors across all the modeling approaches included dark-enhanced startle, the depersonalization and derealization subscale of the dissociative experiences scale, and the PTSD hyperarousal symptom score. These findings offer novel insights into the modeling approaches and patient characteristics that may reliably predict fear extinction in PTSD. Penalized regression shows promise for identifying symptom-related variables to enhance the predictive modeling accuracy in clinical research.
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Affiliation(s)
- Michael W. Lewis
- Center for Depression, Anxiety, and Stress Research, McLean Hospital, Belmont, MA 02478, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA 02115, USA
| | - Christian A. Webb
- Center for Depression, Anxiety, and Stress Research, McLean Hospital, Belmont, MA 02478, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA 02115, USA
| | - Manuel Kuhn
- Center for Depression, Anxiety, and Stress Research, McLean Hospital, Belmont, MA 02478, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA 02115, USA
| | - Eylül Akman
- Center for Depression, Anxiety, and Stress Research, McLean Hospital, Belmont, MA 02478, USA
| | - Sydney A. Jobson
- Center for Depression, Anxiety, and Stress Research, McLean Hospital, Belmont, MA 02478, USA
| | - Isabelle M. Rosso
- Center for Depression, Anxiety, and Stress Research, McLean Hospital, Belmont, MA 02478, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA 02115, USA
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6
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Feng YZ, Chen JT, Hu ZY, Liu GX, Zhou YS, Zhang P, Su AX, Yang S, Zhang YM, Wei RM, Chen GH. Effects of Sleep Reactivity on Sleep Macro-Structure, Orderliness, and Cortisol After Stress: A Preliminary Study in Healthy Young Adults. Nat Sci Sleep 2023; 15:533-546. [PMID: 37434994 PMCID: PMC10332417 DOI: 10.2147/nss.s415464] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 06/29/2023] [Indexed: 07/13/2023] Open
Abstract
Purpose To investigate changes and links of stress and high sleep reactivity (H-SR) on the macro-structure and orderliness of sleep and cortisol levels in good sleepers (GS). Patients and Methods Sixty-two GS (18-40 years old) were recruited, with 32 in the stress group and 30 in the control group. Each group was further divided into H-SR and low SR subgroups based on the Ford Insomnia Response to Stress Test. All participants completed two nights of polysomnography in a sleep laboratory. Before conducting polysomnography on the second night, the stress group completed the Trier Social Stress Test and saliva was collected. Results The duration of NREM sleep stages 1, 2 (N1, N2) and rapid eye movement sleep (REM) decreased, and the values of approximate entropy, sample entropy, fuzzy entropy, and multiscale entropy increased under stress and SR effects. Stress increased rapid eye movement density, and H-SR increased cortisol reactivity. Conclusion Stress can damage the sleep and increase cortisol release in GS, especially those with H-SR. N1, N2 and REM sleep are more easily affected, while NREM sleep stage 3 sleep is relatively stable.
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Affiliation(s)
- Yi-Zhou Feng
- Department of Neurology (Sleep Disorders), Chaohu Hospital of Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
| | - Jun-Tao Chen
- Department of Neurology (Sleep Disorders), Chaohu Hospital of Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
- Department of Neurology, Shangyu People’s Hospital of Shaoxing, Shaoxing, Zhejiang, 312000, People’s Republic of China
| | - Zhen-Yu Hu
- Department of Neurology (Sleep Disorders), Chaohu Hospital of Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
| | - Gao-Xia Liu
- Department of Neurology (Sleep Disorders), Chaohu Hospital of Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
| | - Yu-Shun Zhou
- Department of Neurology (Sleep Disorders), Chaohu Hospital of Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
| | - Ping Zhang
- Department of Neurology (Sleep Disorders), Chaohu Hospital of Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
| | - Ai-Xi Su
- Department of Neurology (Sleep Disorders), Chaohu Hospital of Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
| | - Shuai Yang
- Department of Neurology (Sleep Disorders), Chaohu Hospital of Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
| | - Yue-Ming Zhang
- Department of Neurology (Sleep Disorders), Chaohu Hospital of Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
| | - Ru-Meng Wei
- Department of Neurology (Sleep Disorders), Chaohu Hospital of Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
| | - Gui-Hai Chen
- Department of Neurology (Sleep Disorders), Chaohu Hospital of Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
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7
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Wen YJ, Yang WJ, Guo CN, Qiu MH, Kroeger D, Niu JG, Zhan SQ, Yang XF, Gisabella B, Vetrivelan R, Lu J. Pontine control of rapid eye movement sleep and fear memory. CNS Neurosci Ther 2023; 29:1602-1614. [PMID: 36794544 PMCID: PMC10173714 DOI: 10.1111/cns.14123] [Citation(s) in RCA: 1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 01/20/2023] [Accepted: 01/31/2023] [Indexed: 02/17/2023] Open
Abstract
AIMS We often experience dreams of strong irrational and negative emotional contents with postural muscle paralysis during rapid eye movement (REM) sleep, but how REM sleep is generated and its function remain unclear. In this study, we investigate whether the dorsal pontine sub-laterodorsal tegmental nucleus (SLD) is necessary and sufficient for REM sleep and whether REM sleep elimination alters fear memory. METHODS To investigate whether activation of SLD neurons is sufficient for REM sleep induction, we expressed channelrhodopsin-2 (ChR2) in SLD neurons by bilaterally injecting AAV1-hSyn-ChR2-YFP in rats. We next selectively ablated either glutamatergic or GABAergic neurons from the SLD in mice in order to identify the neuronal subset crucial for REM sleep. We finally investigated the role of REM sleep in consolidation of fear memory using rat model with complete SLD lesions. RESULTS We demonstrate the sufficiency of the SLD for REM sleep by showing that photo-activation of ChR2 transfected SLD neurons selectively promotes transitions from non-REM (NREM) sleep to REM sleep in rats. Diphtheria toxin-A (DTA) induced lesions of the SLD in rats or specific deletion of SLD glutamatergic neurons but not GABAergic neurons in mice completely abolish REM sleep, demonstrating the necessity of SLD glutamatergic neurons for REM sleep. We then show that REM sleep elimination by SLD lesions in rats significantly enhances contextual and cued fear memory consolidation by 2.5 and 1.0 folds, respectively, for at least 9 months. Conversely, fear conditioning and fear memory trigger doubled amounts of REM sleep in the following night, and chemo-activation of SLD neurons projecting to the medial septum (MS) selectively enhances hippocampal theta activity in REM sleep; this stimulation immediately after fear acquisition reduces contextual and cued fear memory consolidation by 60% and 30%, respectively. CONCLUSION SLD glutamatergic neurons generate REM sleep and REM sleep and SLD via the hippocampus particularly down-regulate contextual fear memory.
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Affiliation(s)
- Yu Jun Wen
- Ningxia Key Laboratory of Craniocerebral Diseases, Department of Anatomy, Histology and Embryology, School of Basic Medicine, Ningxia Medical University, Yinchuan, Ningxia, China.,Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Wen Jia Yang
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA.,Shanghai Yueyang Integrated Medicine Hospital, Shanghai, China
| | - Chun Ni Guo
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA.,Department of Neurology, Shanghai First People's Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Mei Hong Qiu
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA.,Department of Neurobiology, School of Basic Medical Science, Shanghai Medical College, Fudan University, Shanghai, China
| | - Daniel Kroeger
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA.,Department of Anatomy, Physiology & Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, Alabama, USA
| | - Jian Guo Niu
- Ningxia Key Laboratory of Craniocerebral Diseases, Department of Anatomy, Histology and Embryology, School of Basic Medicine, Ningxia Medical University, Yinchuan, Ningxia, China.,Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Shu Qin Zhan
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA.,Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Xi Fei Yang
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA.,Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, China
| | - Barbara Gisabella
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA.,Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, Mississippi, USA
| | - Ramalingam Vetrivelan
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Jun Lu
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA.,Stroke Center, Department of Neurology, 1st Hospital of Jilin University, Changchun, Jilin, China
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8
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Liguori C, Mombelli S, Fernandes M, Zucconi M, Plazzi G, Ferini-Strambi L, Logroscino G, Mercuri NB, Filardi M. The evolving role of quantitative actigraphy in clinical sleep medicine. Sleep Med Rev 2023; 68:101762. [PMID: 36773596 DOI: 10.1016/j.smrv.2023.101762] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [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: 08/16/2022] [Revised: 01/23/2023] [Accepted: 01/23/2023] [Indexed: 01/30/2023]
Abstract
Actigraphy has a consolidated role in Insomnia and Circadian Rhythm Sleep-Wake Disorders (CRSWD) and recent studies have highlighted the use of actigraphy for narcolepsy and REM sleep behaviour disorder (RBD). This review aims at summarising the results of studies published over the last decade regarding the use of actigraphy. Thirty-five studies proved eligible, and results were analysed separately for insomnia, narcolepsy and RBD. Actigraphy showed to consistently differentiate insomnia patients from healthy controls. Furthermore, the application of advanced analytical techniques has been shown to provide both unique insights into the physiology of insomnia and sleep misperception and to improve the specificity of actigraphy in detecting wakefulness within sleep periods. Regarding narcolepsy, several studies showed that actigraphy can detect peculiar sleep/wake disruption and the effects of pharmacological treatments. Finally, although the number of studies in RBD patients is still limited, the available evidence indicates a reduced amplitude of the activity pattern, sleep-wake rhythm dysregulation and daytime sleepiness. Therefore, the potential use of these markers as predictors of phenoconversion should be further explored. In conclusion, quantitative actigraphy presents a renewed interest when considering the possibility of using actigraphy in clinical sleep medicine to diagnose, monitor, and follow sleep disorders other than CRSWD.
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Affiliation(s)
- Claudio Liguori
- Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy; Sleep Medicine Centre, Neurology Unit, University Hospital of Rome Tor Vergata, Rome, Italy.
| | - Samantha Mombelli
- IRCCS San Raffaele Scientific Institute, Department of Clinical Neurosciences, Neurology - Sleep Disorders Center, Milan, Italy
| | - Mariana Fernandes
- Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - Marco Zucconi
- IRCCS San Raffaele Scientific Institute, Department of Clinical Neurosciences, Neurology - Sleep Disorders Center, Milan, Italy
| | - Giuseppe Plazzi
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy; IRCCS Institute of Neurological Sciences, Bologna, Italy
| | - Luigi Ferini-Strambi
- IRCCS San Raffaele Scientific Institute, Department of Clinical Neurosciences, Neurology - Sleep Disorders Center, Milan, Italy; "Vita-Salute" San Raffaele University, Milan, Italy
| | - Giancarlo Logroscino
- Department of Translational Biomedicine and Neurosciences (DiBraiN), University of Bari Aldo Moro, Bari, Italy; Center for Neurodegenerative Diseases and the Aging Brain, University of Bari Aldo Moro at Pia Fondazione "Card. G. Panico", Italy
| | - Nicola Biagio Mercuri
- Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy; Sleep Medicine Centre, Neurology Unit, University Hospital of Rome Tor Vergata, Rome, Italy
| | - Marco Filardi
- Department of Translational Biomedicine and Neurosciences (DiBraiN), University of Bari Aldo Moro, Bari, Italy; Center for Neurodegenerative Diseases and the Aging Brain, University of Bari Aldo Moro at Pia Fondazione "Card. G. Panico", Italy
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9
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Rho YA, Sherfey J, Vijayan S. Emotional Memory Processing during REM Sleep with Implications for Post-Traumatic Stress Disorder. J Neurosci 2023; 43:433-46. [PMID: 36639913 DOI: 10.1523/JNEUROSCI.1020-22.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 11/15/2022] [Accepted: 11/22/2022] [Indexed: 12/14/2022] Open
Abstract
REM sleep is important for the processing of emotional memories, including fear memories. Rhythmic interactions, especially in the theta band, between the medial prefrontal cortex (mPFC) and limbic structures are thought to play an important role, but the ways in which memory processing occurs at a mechanistic and circuits level are largely unknown. To investigate how rhythmic interactions lead to fear extinction during REM sleep, we used a biophysically based model that included the infralimbic cortex (IL), a part of the mPFC with a critical role in suppressing fear memories. Theta frequency (4-12 Hz) inputs to a given cell assembly in IL, representing an emotional memory, resulted in the strengthening of connections from the IL to the amygdala and the weakening of connections from the amygdala to the IL, resulting in the suppression of the activity of fear expression cells for the associated memory. Lower frequency (4 Hz) theta inputs effected these changes over a wider range of input strengths. In contrast, inputs at other frequencies were ineffective at causing these synaptic changes and did not suppress fear memories. Under post-traumatic stress disorder (PTSD) REM sleep conditions, rhythmic activity dissipated, and 4 Hz theta inputs to IL were ineffective, but higher-frequency (10 Hz) theta inputs to IL induced changes similar to those seen with 4 Hz inputs under normal REM sleep conditions, resulting in the suppression of fear expression cells. These results suggest why PTSD patients may repeatedly experience the same emotionally charged dreams and suggest potential neuromodulatory therapies for the amelioration of PTSD symptoms.SIGNIFICANCE STATEMENT Rhythmic interactions in the theta band between the mPFC and limbic structures are thought to play an important role in processing emotional memories, including fear memories, during REM sleep. The infralimbic cortex (IL) in the mPFC is thought to play a critical role in suppressing fear memories. We show that theta inputs to the IL, unlike other frequency inputs, are effective in producing synaptic changes that suppress the activity of fear expression cells associated with a given memory. Under PTSD REM sleep conditions, lower-frequency (4 Hz) theta inputs to the IL do not suppress the activity of fear expression cells associated with the given memory but, surprisingly, 10 Hz inputs do. These results suggest potential neuromodulatory therapies for PTSD.
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Holter KM, Pierce BE, Gould RW. Metabotropic glutamate receptor function and regulation of sleep-wake cycles. Int Rev Neurobiol 2023; 168:93-175. [PMID: 36868636 DOI: 10.1016/bs.irn.2022.11.002] [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] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Metabotropic glutamate (mGlu) receptors are the most abundant family of G-protein coupled receptors and are widely expressed throughout the central nervous system (CNS). Alterations in glutamate homeostasis, including dysregulations in mGlu receptor function, have been indicated as key contributors to multiple CNS disorders. Fluctuations in mGlu receptor expression and function also occur across diurnal sleep-wake cycles. Sleep disturbances including insomnia are frequently comorbid with neuropsychiatric, neurodevelopmental, and neurodegenerative conditions. These often precede behavioral symptoms and/or correlate with symptom severity and relapse. Chronic sleep disturbances may also be a consequence of primary symptom progression and can exacerbate neurodegeneration in disorders including Alzheimer's disease (AD). Thus, there is a bidirectional relationship between sleep disturbances and CNS disorders; disrupted sleep may serve as both a cause and a consequence of the disorder. Importantly, comorbid sleep disturbances are rarely a direct target of primary pharmacological treatments for neuropsychiatric disorders even though improving sleep can positively impact other symptom clusters. This chapter details known roles of mGlu receptor subtypes in both sleep-wake regulation and CNS disorders focusing on schizophrenia, major depressive disorder, post-traumatic stress disorder, AD, and substance use disorder (cocaine and opioid). In this chapter, preclinical electrophysiological, genetic, and pharmacological studies are described, and, when possible, human genetic, imaging, and post-mortem studies are also discussed. In addition to reviewing the important relationships between sleep, mGlu receptors, and CNS disorders, this chapter highlights the development of selective mGlu receptor ligands that hold promise for improving both primary symptoms and sleep disturbances.
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Affiliation(s)
- Kimberly M Holter
- Department of Physiology and Pharmacology, Wake Forest University School of Medicine, Winston-Salem, NC, United States
| | - Bethany E Pierce
- Department of Physiology and Pharmacology, Wake Forest University School of Medicine, Winston-Salem, NC, United States
| | - Robert W Gould
- Department of Physiology and Pharmacology, Wake Forest University School of Medicine, Winston-Salem, NC, United States.
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Abstract
Sleep plays a crucial role in the consolidation of memories, including those for fear acquisition and extinction training. This chapter reviews findings from studies testing this relationship in laboratory, naturalistic, and clinical settings. While evidence is mixed, several studies in humans have linked fear and extinction recall/retention to both rapid eye-movement and slow wave sleep. Sleep appears to further aid in the processing of both simulated and actual trauma and improves psychotherapeutic treatment outcomes in those with anxiety and trauma- and stressor-related disorders. This chapter concludes with a discussion of the current challenges facing sleep and emotional memory research in addition to suggestions for improving future research.
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Affiliation(s)
- Ryan Bottary
- Department of Psychology and Neuroscience, Boston College, Chestnut Hill, MA, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
| | - Laura D Straus
- Department of Research, San Francisco VA Health Care System, San Francisco, CA, USA
- Department of Psychiatry and Behavioral Sciences, University of California San Francisco, San Francisco, CA, USA
| | - Edward F Pace-Schott
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA.
- Department of Psychiatry, Massachusetts General Hospital, Charlestown, MA, USA.
- Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA, USA.
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Matei M, Bergel A, Pezet S, Tanter M. Global dissociation of the posterior amygdala from the rest of the brain during REM sleep. Commun Biol 2022; 5:1306. [PMID: 36443640 PMCID: PMC9705305 DOI: 10.1038/s42003-022-04257-0] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 11/14/2022] [Indexed: 11/29/2022] Open
Abstract
Rapid-eye-movement sleep (REMS) or paradoxical sleep is associated with intense neuronal activity, fluctuations in autonomic control, body paralysis and brain-wide hyperemia. The mechanisms and functions of these energy-demanding patterns remain elusive and a global picture of brain activation during REMS is currently missing. In the present work, we performed functional ultrasound imaging on rats over multiple coronal and sagittal brain sections during hundreds of spontaneous REMS episodes to provide the spatiotemporal dynamics of vascular activity in 259 brain regions spanning more than 2/3 of the total brain volume. We first demonstrate a dissociation between basal/midbrain and cortical structures, the first ones sustaining tonic activation during REMS while the others are activated in phasic bouts. Second, we isolated the vascular compartment in our recordings and identified arteries in the anterior part of the brain as strongly involved in the blood supply during REMS episodes. Finally, we report a peculiar activation pattern in the posterior amygdala, which is strikingly disconnected from the rest of the brain during most REMS episodes. This last finding suggests that the amygdala undergoes specific processing during REMS and may be linked to the regulation of emotions and the creation of dream content during this very state.
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Affiliation(s)
- Marta Matei
- grid.15736.360000 0001 1882 0021Physics for Medicine Paris, Inserm U1273, ESPCI Paris, CNRS UMR 8063, Paris Sciences et Lettres research University, Paris, France
| | - Antoine Bergel
- grid.15736.360000 0001 1882 0021Physics for Medicine Paris, Inserm U1273, ESPCI Paris, CNRS UMR 8063, Paris Sciences et Lettres research University, Paris, France
| | - Sophie Pezet
- grid.15736.360000 0001 1882 0021Physics for Medicine Paris, Inserm U1273, ESPCI Paris, CNRS UMR 8063, Paris Sciences et Lettres research University, Paris, France
| | - Mickaël Tanter
- grid.15736.360000 0001 1882 0021Physics for Medicine Paris, Inserm U1273, ESPCI Paris, CNRS UMR 8063, Paris Sciences et Lettres research University, Paris, France
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13
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Schwartz S, Clerget A, Perogamvros L. Enhancing imagery rehearsal therapy for nightmares with targeted memory reactivation. Curr Biol 2022; 32:4808-4816.e4. [PMID: 36306786 DOI: 10.1016/j.cub.2022.09.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 03/23/2022] [Revised: 07/14/2022] [Accepted: 09/15/2022] [Indexed: 11/21/2022]
Abstract
Nightmare disorder (ND) is characterized by dreams with strong negative emotions occurring during rapid eye movement (REM) sleep. ND is mainly treated by imagery rehearsal therapy (IRT), where the patients are asked to change the negative story line of their nightmare to a more positive one. We here used targeted memory reactivation (TMR) during REM sleep to strengthen IRT-related memories and accelerate remission of ND. Thirty-six patients with ND were asked to perform an initial IRT session and, while they generated a positive outcome of their nightmare, half of the patients were exposed to a sound (TMR group), while no such pairing took place for the other half (control group). During the next 2 weeks, all patients performed IRT every evening at home and were exposed to the sound during REM sleep with a wireless headband, which automatically detected sleep stages. The frequency of nightmares per week at 2 weeks was used as the primary outcome measure. We found that the TMR group had less frequent nightmares and more positive dream emotions than the control group after 2 weeks of IRT and a sustained decrease of nightmares after 3 months. By demonstrating the effectiveness of TMR during sleep to potentiate therapy, these results have clinical implications for the management of ND, with relevance to other psychiatric disorders too. Additionally, these findings show that TMR applied during REM sleep can modulate emotions in dreams.
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Affiliation(s)
- Sophie Schwartz
- Department of Basic Neurosciences, Faculty of Medicine, University of Geneva, 1202 Geneva, Switzerland; Swiss Center for Affective Sciences, University of Geneva, 1202 Geneva, Switzerland
| | - Alice Clerget
- Department of Basic Neurosciences, Faculty of Medicine, University of Geneva, 1202 Geneva, Switzerland
| | - Lampros Perogamvros
- Department of Basic Neurosciences, Faculty of Medicine, University of Geneva, 1202 Geneva, Switzerland; Swiss Center for Affective Sciences, University of Geneva, 1202 Geneva, Switzerland; Center for Sleep Medicine, Geneva University Hospitals, 1225 Geneva, Switzerland; Department of Psychiatry, Geneva University Hospitals, 1225 Geneva, Switzerland.
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Pace-Schott EF, Seo J, Bottary R. The influence of sleep on fear extinction in trauma-related disorders. Neurobiol Stress 2022; 22:100500. [PMID: 36545012 PMCID: PMC9761387 DOI: 10.1016/j.ynstr.2022.100500] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 10/21/2022] [Accepted: 10/31/2022] [Indexed: 11/09/2022] Open
Abstract
In Posttraumatic Stress Disorder (PTSD), fear and anxiety become dysregulated following psychologically traumatic events. Regulation of fear and anxiety involves both high-level cognitive processes such as cognitive reattribution and low-level, partially automatic memory processes such as fear extinction, safety learning and habituation. These latter processes are believed to be deficient in PTSD. While insomnia and nightmares are characteristic symptoms of existing PTSD, abundant recent evidence suggests that sleep disruption prior to and acute sleep disturbance following traumatic events both can predispose an individual to develop PTSD. Sleep promotes consolidation in multiple memory systems and is believed to also do so for low-level emotion-regulatory memory processes. Consequently sleep disruption may contribute to the etiology of PTSD by interfering with consolidation in low-level emotion-regulatory memory systems. During the first weeks following a traumatic event, when in the course of everyday life resilient individuals begin to acquire and consolidate these low-level emotion-regulatory memories, those who will develop PTSD symptoms may fail to do so. This deficit may, in part, result from alterations of sleep that interfere with their consolidation, such as REM fragmentation, that have also been found to presage later PTSD symptoms. Here, sleep disruption in PTSD as well as fear extinction, safety learning and habituation and their known alterations in PTSD are first briefly reviewed. Then neural processes that occur during the early post-trauma period that might impede low-level emotion regulatory processes through alterations of sleep quality and physiology will be considered. Lastly, recent neuroimaging evidence from a fear conditioning and extinction paradigm in patient groups and their controls will be considered along with one possible neural process that may contribute to a vulnerability to PTSD following trauma.
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Affiliation(s)
- Edward F. Pace-Schott
- Massachusetts General Hospital, Department of Psychiatry, Charlestown, MA, USA
- Harvard Medical School, Department of Psychiatry, Charlestown, MA, USA
- Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA, USA
- Corresponding author. Harvard Medical School, Massachusetts General Hospital - East, CNY 149 13th Street, Charlestown, MA, 02129, USA.
| | - Jeehye Seo
- Massachusetts General Hospital, Department of Psychiatry, Charlestown, MA, USA
- Harvard Medical School, Department of Psychiatry, Charlestown, MA, USA
- Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA, USA
- Korea University, Department of Brain & Cognitive Engineering, Seongbuk-gu, Seoul, South Korea
| | - Ryan Bottary
- Massachusetts General Hospital, Department of Psychiatry, Charlestown, MA, USA
- Harvard Medical School, Department of Psychiatry, Charlestown, MA, USA
- Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA, USA
- Department of Psychology and Neuroscience, Boston College, Chestnut Hill, MA, USA
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15
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Lipinska G, Austin H, Moonsamy JR, Henry M, Lewis R, Baldwin DS, Thomas KGF, Stuart B. Preferential consolidation of emotional reactivity during sleep: A systematic review and meta-analysis. Front Behav Neurosci 2022; 16:976047. [PMID: 36268469 PMCID: PMC9578377 DOI: 10.3389/fnbeh.2022.976047] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 06/22/2022] [Accepted: 08/26/2022] [Indexed: 11/24/2022] Open
Abstract
Many studies have investigated whether sleep affects cognitively unmodulated reactivity to emotional stimuli. These studies operationalize emotion regulation by using subjective and/or objective measures to compare pre- and post-sleep reactivity to the same emotional stimuli. Findings have been inconsistent: some show that sleep attenuates emotional reactivity, whereas others report enhanced or maintained reactivity. Across-study methodological differences may account for discrepant findings. To resolve the questions of whether sleep leads to the attenuation, enhancement, or maintenance of emotional reactivity, and under which experimental conditions particular effects are observed, we undertook a synthesized narrative and meta-analytic approach. We searched PubMed, PsycINFO, PsycARTICLES, Web of Science, and Cochrane Library databases for relevant articles, using search terms determined a priori and search limits of language = English, participants = human, and dates = January 2006–June 2021. Our final sample included 24 studies that investigated changes in emotional reactivity in response to negatively and/or positively valenced material compared to neutral material over a period of sleep compared to a matched period of waking. Primary analyses used random effects modeling to investigate whether sleep preferentially modulates reactivity in response to emotional stimuli; secondary analyses examined potential moderators of the effect. Results showed that sleep (or equivalent periods of wakefulness) did not significantly affect psychophysiological measures of reactivity to negative or neutral stimuli. However, self-reported arousal ratings of negative stimuli were significantly increased post-sleep but not post-waking. Sub-group analyses indicated that (a) sleep-deprived participants, compared to those who slept or who experienced daytime waking, reacted more strongly and negatively in response to positive stimuli; (b) nap-exposed participants, compared to those who remained awake or who slept a full night, rated negative pictures less negatively; and (c) participants who did not obtain substantial REM sleep, compared to those who did and those exposed to waking conditions, had attenuated reactivity to neutral stimuli. We conclude that sleep may affect emotional reactivity, but that studies need more consistency in methodology, commitment to collecting both psychophysiological and self-report measures, and should report REM sleep parameters. Using these methodological principles would promote a better understanding of under which conditions particular effects are observed.
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Affiliation(s)
- Gosia Lipinska
- UCT Sleep Sciences and Applied Cognitive Science and Experimental Neuroscience Team (ACSENT), Department of Psychology, University of Cape Town, Cape Town, South Africa
- *Correspondence: Gosia Lipinska
| | - Holly Austin
- Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Jasmin R. Moonsamy
- UCT Sleep Sciences and Applied Cognitive Science and Experimental Neuroscience Team (ACSENT), Department of Psychology, University of Cape Town, Cape Town, South Africa
| | - Michelle Henry
- UCT Sleep Sciences and Applied Cognitive Science and Experimental Neuroscience Team (ACSENT), Department of Psychology, University of Cape Town, Cape Town, South Africa
- Numeracy Centre, Centre for Higher Education Development, University of Cape Town, Cape Town, South Africa
| | - Raphaella Lewis
- UCT Sleep Sciences and Applied Cognitive Science and Experimental Neuroscience Team (ACSENT), Department of Psychology, University of Cape Town, Cape Town, South Africa
| | - David S. Baldwin
- Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
- Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa
| | - Kevin G. F. Thomas
- UCT Sleep Sciences and Applied Cognitive Science and Experimental Neuroscience Team (ACSENT), Department of Psychology, University of Cape Town, Cape Town, South Africa
| | - Beth Stuart
- Centre for Evaluation and Methods, Wolfson Institute of Population Health, Queen Mary University of London, London, United Kingdom
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Szafoni S, Piegza M. Progress in Personalized Psychiatric Therapy with the Example of Using Intranasal Oxytocin in PTSD Treatment. J Pers Med 2022; 12:1067. [PMID: 35887564 PMCID: PMC9317706 DOI: 10.3390/jpm12071067] [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: 05/20/2022] [Revised: 06/21/2022] [Accepted: 06/28/2022] [Indexed: 11/22/2022] Open
Abstract
Post-traumatic stress disorder (PTSD) is a severe mental disorder that results in the frequent coexistence of other diseases, lowers patients’ quality of life, and has a high annual cost of treatment. However, despite the variety of therapeutic approaches that exist, some patients still do not achieve the desired results. In addition, we may soon face an increase in the number of new PTSD cases because of the current global situation—both the COVID-19 pandemic and the ongoing armed conflicts. Hence, in recent years, many publications have sought a new, more personalized treatment approach. One such approach is the administration of intranasal oxytocin (INOXT), which, due to its pleiotropic effects, seems to be a promising therapeutic option. However, the current findings suggest that it might only be helpful for a limited, strictly selected group of patients.
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Mellman TA. Possible Pathological Alteration of a Functional Relationship Between Learning and Neural Activation During Sleep With Posttraumatic Stress Disorder. Biol Psychiatry Cogn Neurosci Neuroimaging 2021; 6:1042-1043. [PMID: 34753611 DOI: 10.1016/j.bpsc.2021.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 07/29/2021] [Indexed: 06/13/2023]
Affiliation(s)
- Thomas A Mellman
- Department of Psychiatry and Behavioral Sciences, Howard University College of Medicine, Washington, District of Columbia.
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18
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Seo J, Oliver KI, Daffre C, Moore KN, Gazecki S, Lasko NB, Milad MR, Pace-Schott EF. Associations of sleep measures with neural activations accompanying fear conditioning and extinction learning and memory in trauma-exposed individuals. Sleep 2021; 45:6414032. [PMID: 34718807 DOI: 10.1093/sleep/zsab261] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 03/18/2021] [Revised: 10/26/2021] [Indexed: 11/13/2022] Open
Abstract
STUDY OBJECTIVES Sleep disturbances increase risk of posttraumatic stress disorder (PTSD). Sleep effects on extinction may contribute to such risk. Neural activations to fear extinction were examined in trauma-exposed participants and associated with sleep variables. METHODS Individuals trauma-exposed within the past 2 years (N=126, 63 PTSD) completed 2 weeks actigraphy and sleep diaries, 3 nights ambulatory polysomnography and a 2-day fMRI protocol with Fear-Conditioning, Extinction-Learning and, 24h later, Extinction-Recall phases. Activations within the anterior cerebrum and regions of interest (ROI) were examined within the total, PTSD-diagnosed and trauma-exposed control (TEC) groups. Sleep variables were used to predict activations within groups and among total participants. Family wise error was controlled at p<0.05 using nonparametric analysis with 5000 permutations. RESULTS Initially, Fear Conditioning activated broad subcortical and cortical anterior-cerebral regions. Within-group analyses showed: (1) by end of Fear Conditioning activations decreased in TEC but not PTSD; (2) across Extinction Learning, TEC activated medial prefrontal areas associated with emotion regulation whereas PTSD did not; (3) beginning Extinction Recall, PTSD activated this emotion-regulatory region whereas TEC did not. However, the only between-group contrast reaching significance was greater activation of a hippocampal ROI in TEC at Extinction Recall. A greater number of sleep variables were associated with cortical activations in separate groups versus the entire sample and in PTSD versus TEC. CONCLUSIONS PTSD non-significantly delayed extinction learning relative to TEC possibly increasing vulnerability to pathological anxiety. The influence of sleep integrity on brain responses to threat and extinction may be greater in more symptomatic individuals.
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Affiliation(s)
- Jeehye Seo
- Massachusetts General Hospital, Department of Psychiatry, Charlestown MA, USA.,Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA, USA.,Harvard Medical School, Department of Psychiatry, Charlestown, MA, USA.,Korea University, Department of Brain & Cognitive Engineering, Seongbuk-gu, Seoul, KR
| | - Katelyn I Oliver
- Massachusetts General Hospital, Department of Psychiatry, Charlestown MA, USA.,Emory University, Atlanta, GA, USA
| | - Carolina Daffre
- Massachusetts General Hospital, Department of Psychiatry, Charlestown MA, USA.,Duke University, Durham, NC, USA
| | - Kylie N Moore
- Massachusetts General Hospital, Department of Psychiatry, Charlestown MA, USA.,Boston University, Boston, MA, USA
| | - Samuel Gazecki
- Massachusetts General Hospital, Department of Psychiatry, Charlestown MA, USA.,University of New England, College of Osteopathic Medicine, Biddeford, ME, USA
| | - Natasha B Lasko
- Massachusetts General Hospital, Department of Psychiatry, Charlestown MA, USA.,Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA, USA.,Harvard Medical School, Department of Psychiatry, Charlestown, MA, USA
| | - Mohammed R Milad
- Department of Psychiatry, New York University Grossman School of Medicine, New York, NY, USA.,Nathan Kline Institute for Psychiatric Research, Rockland, NY, USA
| | - Edward F Pace-Schott
- Massachusetts General Hospital, Department of Psychiatry, Charlestown MA, USA.,Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA, USA.,Harvard Medical School, Department of Psychiatry, Charlestown, MA, USA
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Schenker MT, Ney LJ, Miller LN, Felmingham KL, Nicholas CL, Jordan AS. Sleep and fear conditioning, extinction learning and extinction recall: A systematic review and meta-analysis of polysomnographic findings. Sleep Med Rev 2021; 59:101501. [PMID: 34090064 DOI: 10.1016/j.smrv.2021.101501] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 03/30/2021] [Accepted: 04/28/2021] [Indexed: 11/21/2022]
Abstract
Sleep may contribute to the long-lasting consolidation and processing of emotional memories. Experimental fear conditioning and extinction paradigms model the development, maintenance, and treatment of anxiety disorders. The literature provides compelling evidence for the involvement of rapid eye movement (REM) sleep in the consolidation of such memories. This meta-analysis correlated polysomnographic sleep findings with psychophysiological reactivity to the danger (CS+) and safety stimuli (CS-), to clarify the specific role of sleep stages before and after fear conditioning, extinction learning and extinction recall. Overall, there was evidence that more pre-learning sleep stage two and less slow wave sleep was associated with higher psychophysiological reactivity to the safety stimulus during extinction learning. Preliminary evidence found here support the role of REM sleep during the post-extinction consolidation sleep phase in clinical populations with disrupted sleep, but not in healthy controls. Furthermore, the meta-regressions found that sex moderated the associations between sleep and psychophysiological reactivity throughout the paradigm providing evidence for diverging correlations in male and females. Specifically, increased post-extinction REM was associated with poorer extinction and safety recall in females while the opposite was found in males. These results have implications for future research in the role of sleep in emotional memory processing.
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Fritz EM, Kreuzer M, Altunkaya A, Singewald N, Fenzl T. Altered sleep behavior in a genetic mouse model of impaired fear extinction. Sci Rep 2021; 11:8978. [PMID: 33903668 PMCID: PMC8076259 DOI: 10.1038/s41598-021-88475-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 04/13/2021] [Indexed: 02/03/2023] Open
Abstract
Sleep disturbances are a common complaint of anxiety patients and constitute a hallmark feature of post-traumatic stress disorder (PTSD). Emerging evidence suggests that poor sleep is not only a secondary symptom of anxiety- and trauma-related disorders but represents a risk factor in their development, for example by interfering with emotional memory processing. Fear extinction is a critical mechanism for the attenuation of fearful and traumatic memories and multiple studies suggest that healthy sleep is crucial for the formation of extinction memories. However, fear extinction is often impaired in anxiety- and trauma-related disorders—an endophenotype that is perfectly modelled in the 129S1/SvImJ inbred mouse strain. To investigate whether these mice exhibit altered sleep at baseline that could predispose them towards maladaptive fear processing, we compared their circadian sleep/wake patterns to those of typically extinction-competent C57BL/6 mice. We found significant differences regarding diurnal distribution of sleep and wakefulness, but also sleep architecture, spectral features and sleep spindle events. With regard to sleep disturbances reported by anxiety- and PTSD patients, our findings strengthen the 129S1/SvImJ mouse models’ face validity and highlight it as a platform to investigate novel, sleep-focused diagnostic and therapeutic strategies. Whether the identified alterations causally contribute to its pathological anxiety/PTSD-like phenotype will, however, have to be addressed in future studies.
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Affiliation(s)
- Eva Maria Fritz
- Department of Pharmacology and Toxicology, Institute of Pharmacy and CMBI, University of Innsbruck, Innsbruck, Austria
| | - Matthias Kreuzer
- Department of Anesthesiology and Intensive Care, School of Medicine, Klinikum Rechts Der Isar, Technical University of Munich, Ismaninger Straße 22, 81675, Munich, Germany
| | - Alp Altunkaya
- Department of Anesthesiology and Intensive Care, School of Medicine, Klinikum Rechts Der Isar, Technical University of Munich, Ismaninger Straße 22, 81675, Munich, Germany
| | - Nicolas Singewald
- Department of Pharmacology and Toxicology, Institute of Pharmacy and CMBI, University of Innsbruck, Innsbruck, Austria
| | - Thomas Fenzl
- Department of Pharmacology and Toxicology, Institute of Pharmacy and CMBI, University of Innsbruck, Innsbruck, Austria. .,Department of Anesthesiology and Intensive Care, School of Medicine, Klinikum Rechts Der Isar, Technical University of Munich, Ismaninger Straße 22, 81675, Munich, Germany.
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21
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Wu D, Tong M, Ji Y, Ruan L, Lou Z, Gao H, Yang Q. REM Sleep Fragmentation in Patients With Short-Term Insomnia Is Associated With Higher BDI Scores. Front Psychiatry 2021; 12:733998. [PMID: 34566728 PMCID: PMC8458740 DOI: 10.3389/fpsyt.2021.733998] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 08/05/2021] [Indexed: 11/13/2022] Open
Abstract
Objective: To observe the changes in sleep characteristics and BDI scores in patients with short-term insomnia disorder (SID) using a longitudinal observational study. Methods: Fifty-four patients who met the criteria for SID of the International Classification of Sleep Disorders, third edition, were recruited. Depression levels were assessed using the Beck depression inventory (BDI) at enrollment and after 3 months of follow-up, respectively. Sleep characteristics were assessed by polysomnography. Results: After 3 months of follow-up, the group was divided into SID with increased BDI score (BDI >15) and SID with normal BDI score (BDI ≤ 15) according to the total BDI score of the second assessment. The differences in rapid eye movement (REM) sleep latency, REM sleep arousal index, and NREM sleep arousal index between the two groups were statistically significant. The total BDI score was positively correlated with REM and NREM sleep arousal index and negatively correlated with REM sleep latency, which were analyzed by Pearson correlation coefficient. Multiple linear regression was used to construct a regression model to predict the risk of depression in which the prediction accuracy reached 83.7%. Conclusion: REM sleep fragmentation is closely associated with future depressive status in patients with SID and is expected to become an index of estimating depression risk.
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Affiliation(s)
- Danjuan Wu
- Sleep Disorder Diagnosis and Treatment Center, Department of Psychiatric, Ningbo City First Hospital, Ningbo Hospital of Zhejiang University, Zhejiang, China
| | - Maoqing Tong
- Sleep Disorder Diagnosis and Treatment Center, Department of Psychiatric, Ningbo City First Hospital, Ningbo Hospital of Zhejiang University, Zhejiang, China
| | - Yunxin Ji
- Sleep Disorder Diagnosis and Treatment Center, Department of Psychiatric, Ningbo City First Hospital, Ningbo Hospital of Zhejiang University, Zhejiang, China
| | - Liemin Ruan
- Sleep Disorder Diagnosis and Treatment Center, Department of Psychiatric, Ningbo City First Hospital, Ningbo Hospital of Zhejiang University, Zhejiang, China
| | - Zhongze Lou
- Sleep Disorder Diagnosis and Treatment Center, Department of Psychiatric, Ningbo City First Hospital, Ningbo Hospital of Zhejiang University, Zhejiang, China.,Central Laboratory of the Medical Research Center, Ningbo City First Hospital, Ningbo Hospital of Zhejiang University, Zhejiang, China
| | - He Gao
- Department of Psychiatric, Ningbo Kangning Hospital, Zhejiang, China
| | - Qing Yang
- Sleep Disorder Diagnosis and Treatment Center, Department of Psychiatric, Ningbo City First Hospital, Ningbo Hospital of Zhejiang University, Zhejiang, China
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Bottary R, Denis D. A paradoxical effect of sleep for emotional reactivity in insomnia disorder? Sleep 2020; 43:5721352. [DOI: 10.1093/sleep/zsaa005] [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] [Received: 10/13/2019] [Revised: 01/07/2020] [Indexed: 11/14/2022] Open
Affiliation(s)
- Ryan Bottary
- Department of Psychology and Neuroscience, Boston College, Chestnut Hill, MA
| | - Dan Denis
- Department of Psychiatry, Harvard Medical School, Boston, MA
- Department of Psychiatry, Beth Israel Deaconess Medical Center, Boston, MA
- Department of Psychology, University of Notre Dame, Notre Dame, IN
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