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Sleep selectively stabilizes contextual aspects of negative memories. Sci Rep 2018; 8:17861. [PMID: 30552343 PMCID: PMC6294767 DOI: 10.1038/s41598-018-35999-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 11/08/2018] [Indexed: 11/09/2022] Open
Abstract
Sleep and emotion are both powerful modulators of the long-term stability of episodic memories, but precisely how these factors interact remains unresolved. We assessed changes in item recognition, contextual memory, and affective tone for negative and neutral memories across a 12 h interval containing sleep or wakefulness in 71 human volunteers. Our data indicate a sleep-dependent stabilization of negative contextual memories, in a way not seen for neutral memories, item recognition, or across wakefulness. Furthermore, retention of contextual memories was positively associated with the proportion of time spent in non-rapid eye movement sleep in a valence-independent manner. Finally, while affective responses to previously seen negative stimuli and to both old and new neutral stimuli decreased across an interval of sleep, effects for memorized items did not differ reliably between sleep and wake. These results add to our understanding of the complex interrelations among sleep, memory, and emotion.
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202
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Tafoya SA, Aldrete–Cortez V, Ortiz S, Fouilloux C, Flores F, Monterrosas AM. Resilience, sleep quality and morningness as mediators of vulnerability to depression in medical students with sleep pattern alterations. Chronobiol Int 2018; 36:381-391. [DOI: 10.1080/07420528.2018.1552290] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Silvia A. Tafoya
- Department of Psychiatry and Mental Health, Faculty of Medicine, Universidad Nacional Autónoma de México, Mexico City, Mexico
- School of Psychology, Universidad Panamericana, Mexico City, Mexico
| | - Vania Aldrete–Cortez
- Neuroscience and Cognitive Developmental Laboratory, School of Psychology, Universidad Panamericana, Mexico City, Mexico
| | - Silvia Ortiz
- Department of Psychiatry and Mental Health, Faculty of Medicine, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Claudia Fouilloux
- Department of Psychiatry and Mental Health, Faculty of Medicine, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Felipe Flores
- Department of Medical Internship, Faculty of Medicine, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Ana M. Monterrosas
- Department of Medical Internship, Faculty of Medicine, Universidad Nacional Autónoma de México, Mexico City, Mexico
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203
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Jahangard L, Sadeghi A, Ahmadpanah M, Holsboer-Trachsler E, Sadeghi Bahmani D, Haghighi M, Brand S. Influence of adjuvant omega-3-polyunsaturated fatty acids on depression, sleep, and emotion regulation among outpatients with major depressive disorders - Results from a double-blind, randomized and placebo-controlled clinical trial. J Psychiatr Res 2018; 107:48-56. [PMID: 30317101 DOI: 10.1016/j.jpsychires.2018.09.016] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 09/20/2018] [Accepted: 09/28/2018] [Indexed: 01/20/2023]
Abstract
BACKGROUND Extant literature shows that adjuvant omega-3-polyunsaturated fatty acids (O3PUFAs) to a standard antidepressant medication impacts favorably on symptoms of depression in participants with major depressive disorders (MDD). The aim of the present study was to investigate, if and to what extent compared to placebo adjuvant O3PUFAs had a favorable impact on symptoms of depression, anxiety, sleep and emotion regulation among outpatients with MDD. METHOD A total of 50 outpatients (mean age: M = 42.46; 68% females) took part in this randomized, double-blind and placebo-controlled study. They were randomly assigned either to the O3PUFA- or to the placebo-condition. Standard medication was sertraline at therapeutic dosages. At baseline, six weeks and 12 weeks later at study completion participants completed questionnaires covering symptoms of depression, anxiety sensitivity, intolerance of uncertainty, sleep disturbances, and emotion regulation. In parallel, experts blind to participants' group assignment rated participants' depression with the Montgomery-Asberg Depression Scale. RESULTS Symptoms of depression (self- and experts' ratings) decreased over time, but more so in the O3PUFA condition, compared to the placebo condition. Likewise, anxiety sensitivity, intolerance of uncertainty and sleep disturbances improved, but again more so in the O3PUFA condition. Further, regulation and control of emotions and perception of other's emotions improved over time, but more so in the O3PUFA condition. CONCLUSIONS Among outpatients with MDD, and compared to placebo, adjuvant O3PUFAs to a standard medication improved not only symptoms of depression, but also dimensions of anxiety and sleep, and above all patients' competencies to regulate their emotions.
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Affiliation(s)
- Leila Jahangard
- Research Center for Behavioral Disorders and Substances Abuse, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Ali Sadeghi
- Research Center for Behavioral Disorders and Substances Abuse, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mohammad Ahmadpanah
- Research Center for Behavioral Disorders and Substances Abuse, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Edith Holsboer-Trachsler
- University of Basel, Psychiatric Clinics (UPK), Center for Affective, Stress and Sleep Disorders (ZASS), Basel, Switzerland
| | - Dena Sadeghi Bahmani
- University of Basel, Psychiatric Clinics (UPK), Center for Affective, Stress and Sleep Disorders (ZASS), Basel, Switzerland; Kermanshah University of Medical Sciences (KUMS), Sleep Disorders Research Center, Kermanshah, Iran; Kermanshah University of Medical Sciences (KUMS), Substance Abuse Prevention Research Center, Kermanshah, Iran; Isfahan Neurosciences Research Center, Alzahra Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Haghighi
- Research Center for Behavioral Disorders and Substances Abuse, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Serge Brand
- University of Basel, Psychiatric Clinics (UPK), Center for Affective, Stress and Sleep Disorders (ZASS), Basel, Switzerland; Kermanshah University of Medical Sciences (KUMS), Sleep Disorders Research Center, Kermanshah, Iran; Kermanshah University of Medical Sciences (KUMS), Substance Abuse Prevention Research Center, Kermanshah, Iran; University of Basel, Department of Sport, Exercise and Health, Division of Sport Sciences and Psychosocial Health, Basel, Switzerland.
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204
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Park WS, Yang KI, Kim H. Insufficient sleep and suicidal ideation: a survey of 12,046 female adolescents. Sleep Med 2018; 53:65-69. [PMID: 30447401 DOI: 10.1016/j.sleep.2018.08.025] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 08/22/2018] [Accepted: 08/24/2018] [Indexed: 12/28/2022]
Abstract
OBJECTIVES Adolescence is a period of adaptation to social, hormonal, and physical changes. Because of these changes, adolescents are at risk for depression and suicidal thoughts. Female adolescents tend to be more sensitive to hormonal and emotional changes. Although the reciprocal relationship among depression, poor sleep quality, and suicide has been studied, whether decreased sleep time leads to depression-mediated suicide or induces suicide itself remains to be determined. Therefore, this study aimed to analyze (using a path analysis) the indirect (i.e., due to depression) and direct effects of sleep on suicidal ideation for female adolescents. METHODS We use nationally representative data from the Korean juvenile health behavior online survey to analyze the sleep effects on suicidal ideation. A total of 12,046 Korean female adolescents were included in this study. We analyzed data from the juvenile health behavior online survey (2017) conducted by the Korea Centers for Disease Control and Prevention and identified variables that could affect the mental health of female adolescents. A path analysis was performed to determine the direct role of sleep in suicidal ideation. RESULTS Decreased sleep was one of the several risk factors for suicidal ideation. Unexpectedly, after controlling for other risk factors including depression and socioeconomic factors, insufficient sleep was found to have direct effects on suicidal ideation. The indirect effect of insufficient sleep on suicidal ideation was mediated by depression. CONCLUSION Sleep is a modifiable factor that could reduce the suicide rate among female adolescents and could be targeted through public health prevention efforts.
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Affiliation(s)
- Woong-Sub Park
- Department of Preventive Medicine & Public Health Catholic Kwandong University College of Medicine, Gangwon, Republic of Korea
| | - Kwang Ik Yang
- Sleep Disorders Center, Department of Neurology, Soonchunhyang University College of Medicine, Cheonan Hospital, Cheonan, Republic of Korea
| | - Hyeyun Kim
- Department of Neurology, Catholic Kwandong University College of Medicine, International St. Mary's Hospital, Incheon, Republic of Korea.
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205
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Guadagni V, Burles F, Ferrara M, Iaria G. Sleep quality and its association with the insular cortex in emotional empathy. Eur J Neurosci 2018; 48:2288-2300. [DOI: 10.1111/ejn.14124] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 07/31/2018] [Accepted: 08/10/2018] [Indexed: 11/28/2022]
Affiliation(s)
- Veronica Guadagni
- Department of PsychologyHotchkiss Brain InstituteAlberta Children's Hospital Research InstituteUniversity of Calgary Calgary Alberta Canada
- Department of Physiology and Pharmacology, Clinical NeurosciencesCumming School of MedicineHotchkiss Brain InstituteUniversity of Calgary Calgary Alberta Canada
| | - Ford Burles
- Department of PsychologyHotchkiss Brain InstituteAlberta Children's Hospital Research InstituteUniversity of Calgary Calgary Alberta Canada
| | - Michele Ferrara
- Department of Biotechnological and Applied Clinical SciencesUniversity of L'Aquila L'Aquila Italy
| | - Giuseppe Iaria
- Department of PsychologyHotchkiss Brain InstituteAlberta Children's Hospital Research InstituteUniversity of Calgary Calgary Alberta Canada
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206
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The Role of Sleep in Learning Placebo Effects. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2018; 139:321-355. [DOI: 10.1016/bs.irn.2018.07.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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207
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Brand S, Schilling R, Ludyga S, Colledge F, Sadeghi Bahmani D, Holsboer-Trachsler E, Pühse U, Gerber M. Further Evidence of the Zero-Association Between Symptoms of Insomnia and Facial Emotion Recognition-Results From a Sample of Adults in Their Late 30s. Front Psychiatry 2018; 9:754. [PMID: 30705644 PMCID: PMC6344466 DOI: 10.3389/fpsyt.2018.00754] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 12/20/2018] [Indexed: 12/19/2022] Open
Abstract
Background: Restoring sleep is associated with favorable cognitive, emotional, and behavioral adaptations. As regards the association between sleep duration and facial emotion recognition (FER), results are conflicting, and as regards the association between symptoms of insomnia and FER, no study has been performed so far. Accordingly, the aim of the present study was to investigate whether subjective sleep was associated with FER, along with perceived stress and mental toughness. Method: A total of 201 police officers (mean age = 38.5 years, 64.2% males) took part in the present cross-sectional study. They completed questionnaires covering socio-demographic data, subjective symptoms of insomnia, perceived stress, and mental toughness. Further, they underwent a computerized FER test, consisting of facial emotion labeling and facial emotion matching. Results: Performance of FER (accuracy, speed) was unrelated to subjective symptoms of insomnia. Lower FER was associated with higher age, but not to perceived stress or mental toughness. No gender differences were observed. Higher symptoms of insomnia were associated with higher stress scores and lower scores of mental toughness. Conclusions: The pattern of results suggests that FER was not associated with symptoms of insomnia, understood as a proxy of sleep quality, among adults. This observation replicates those studies showing a zero-association between sleep and FER.
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Affiliation(s)
- Serge Brand
- Division of Sport Science and Psychosocial Health, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland.,Center of Affective, Stress and Sleep Disorders, Psychiatric Clinics (UPK), University of Basel, Basel, Switzerland.,Substance Abuse Prevention Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran.,Sleep Disturbances Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - René Schilling
- Division of Sport Science and Psychosocial Health, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Sebastian Ludyga
- Division of Sport Science and Psychosocial Health, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Flora Colledge
- Division of Sport Science and Psychosocial Health, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Dena Sadeghi Bahmani
- Center of Affective, Stress and Sleep Disorders, Psychiatric Clinics (UPK), University of Basel, Basel, Switzerland.,Substance Abuse Prevention Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran.,Sleep Disturbances Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran.,Isfahan Neurosciences Research Center, Alzahra Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Edith Holsboer-Trachsler
- Center of Affective, Stress and Sleep Disorders, Psychiatric Clinics (UPK), University of Basel, Basel, Switzerland
| | - Uwe Pühse
- Division of Sport Science and Psychosocial Health, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Markus Gerber
- Division of Sport Science and Psychosocial Health, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
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