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Martinec Nováková L, Miletínová E, Kliková M, Bušková J. Nocturnal exposure to a preferred ambient scent does not affect dream emotionality or post-sleep core affect valence in young adults. Sci Rep 2024; 14:10369. [PMID: 38710748 DOI: 10.1038/s41598-024-60226-z] [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: 09/15/2023] [Accepted: 04/19/2024] [Indexed: 05/08/2024] Open
Abstract
Emotions experienced within sleep mentation (dreaming) affect mental functioning in waking life. There have been attempts at enhancing dream emotions using olfactory stimulation. Odors readily acquire affective value, but to profoundly influence emotional processing, they should bear personal significance for the perceiver rather than be generally pleasant. The main objective of the present sleep laboratory study was to examine whether prolonged nocturnal exposure to self-selected, preferred ambient room odor while asleep influences emotional aspects of sleep mentation and valence of post-sleep core affect. We asked twenty healthy participants (12 males, mean age 25 ± 4 years) to pick a commercially available scented room diffuser cartridge that most readily evoked positively valenced mental associations. In weekly intervals, the participants attended three sessions. After the adaptation visit, they were administered the odor exposure and odorless control condition in a balanced order. Participants were awakened five minutes into the first rapid eye movement (REM) stage that took place after 2:30 a.m. and, if they had been dreaming, they were asked to rate their mental sleep experience for pleasantness, emotional charge, and magnitude of positive and negative emotions and also to evaluate their post-sleep core affect valence. With rs < 0.20, no practically or statistically significant differences existed between exposure and control in any outcome measures. We conclude that in young, healthy participants, the practical value of olfactory stimulation with self-selected preferred scents for enhancement of dream emotions and post-sleep core affect valence is very limited.
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Affiliation(s)
- Lenka Martinec Nováková
- Department of Chemical Education and Humanities, University of Chemistry and Technology, Prague, Technická 5, 16628, Prague 6 - Dejvice, Czech Republic.
| | - Eva Miletínová
- National Institute of Mental Health, Topolová 748, 25067, Klecany, Czech Republic
- 3rd Faculty of Medicine, Charles University, Ruská 87, 10000, Prague 10, Czech Republic
| | - Monika Kliková
- National Institute of Mental Health, Topolová 748, 25067, Klecany, Czech Republic
- 3rd Faculty of Medicine, Charles University, Ruská 87, 10000, Prague 10, Czech Republic
| | - Jitka Bušková
- National Institute of Mental Health, Topolová 748, 25067, Klecany, Czech Republic
- 3rd Faculty of Medicine, Charles University, Ruská 87, 10000, Prague 10, Czech Republic
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Dudysová D, Janků K, Piorecký M, Hantáková V, Orendáčová M, Piorecká V, Štrobl J, Kliková M, Ngo HVV, Kopřivová J. Closed-loop auditory stimulation of slow-wave sleep in chronic insomnia: a pilot study. J Sleep Res 2024:e14179. [PMID: 38467353 DOI: 10.1111/jsr.14179] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 12/12/2023] [Accepted: 02/07/2024] [Indexed: 03/13/2024]
Abstract
Insomnia is a prevalent and disabling condition whose treatment is not always effective. This pilot study explores the feasibility and effects of closed-loop auditory stimulation (CLAS) as a potential non-invasive intervention to improve sleep, its subjective quality, and memory consolidation in patients with insomnia. A total of 27 patients with chronic insomnia underwent a crossover, sham-controlled study with 2 nights of either CLAS or sham stimulation. Polysomnography was used to record sleep parameters, while questionnaires and a word-pair memory task were administered to assess subjective sleep quality and memory consolidation. The initial analyses included 17 patients who completed the study, met the inclusion criteria, and received CLAS. From those, 10 (58%) received only a small number of stimuli. In the remaining seven (41%) patients with sufficient CLAS, we evaluated the acute and whole-night effect on sleep. CLAS led to a significant immediate increase in slow oscillation (0.5-1 Hz) amplitude and activity, and reduced delta (1-4 Hz) and sigma/sleep spindle (12-15 Hz) activity during slow-wave sleep across the whole night. All these fundamental sleep rhythms are implicated in sleep-dependent memory consolidation. Yet, CLAS did not change sleep-dependent memory consolidation or sleep macrostructure characteristics, number of arousals, or subjective perception of sleep quality. Results showed CLAS to be feasible in patients with insomnia. However, a high variance in the efficacy of our automated stimulation approach suggests that further research is needed to optimise stimulation protocols to better unlock potential CLAS benefits for sleep structure and subjective sleep quality in such clinical settings.
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Affiliation(s)
- Daniela Dudysová
- National Institute of Mental Health, Klecany, Czech Republic
- Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Karolina Janků
- National Institute of Mental Health, Klecany, Czech Republic
| | - Marek Piorecký
- National Institute of Mental Health, Klecany, Czech Republic
- Faculty of Biomedical Engineering, Czech Technical University in Prague, Prague, Czech Republic
| | - Veronika Hantáková
- National Institute of Mental Health, Klecany, Czech Republic
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, Scotland
| | - Mária Orendáčová
- National Institute of Mental Health, Klecany, Czech Republic
- Third Faculty of Medicine, Charles University, Prague, Czech Republic
- Department of Physiology, Faculty of Science, Charles University in Prague, Prague, Czech Republic
| | - Václava Piorecká
- National Institute of Mental Health, Klecany, Czech Republic
- Faculty of Biomedical Engineering, Czech Technical University in Prague, Prague, Czech Republic
| | - Jan Štrobl
- National Institute of Mental Health, Klecany, Czech Republic
- Faculty of Biomedical Engineering, Czech Technical University in Prague, Prague, Czech Republic
| | - Monika Kliková
- National Institute of Mental Health, Klecany, Czech Republic
| | - Hong-Viet V Ngo
- Center for Brain, Behaviour and Metabolism, University of Lübeck, Lübeck, Germany
- Department of Psychology, University of Lübeck, Lübeck, Germany
- Department of Psychology, University of Essex, Colchester, UK
| | - Jana Kopřivová
- National Institute of Mental Health, Klecany, Czech Republic
- Third Faculty of Medicine, Charles University, Prague, Czech Republic
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Černý F, Piorecká V, Kliková M, Kopřivová J, Bušková J, Piorecký M. All-night spectral and microstate EEG analysis in patients with recurrent isolated sleep paralysis. Front Neurosci 2024; 18:1321001. [PMID: 38389790 PMCID: PMC10882627 DOI: 10.3389/fnins.2024.1321001] [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: 10/13/2023] [Accepted: 01/25/2024] [Indexed: 02/24/2024] Open
Abstract
The pathophysiology of recurrent isolated sleep paralysis (RISP) has yet to be fully clarified. Very little research has been performed on electroencephalographic (EEG) signatures outside RISP episodes. This study aimed to investigate whether sleep is disturbed even without the occurrence of a RISP episode and in a stage different than conventional REM sleep. 17 RISP patients and 17 control subjects underwent two consecutive full-night video-polysomnography recordings. Spectral analysis was performed on all sleep stages in the delta, theta, and alpha band. EEG microstate (MS) analysis was performed on the NREM 3 phase due to the overall high correlation of subject template maps with canonical templates. Spectral analysis showed a significantly higher power of theta band activity in REM and NREM 2 sleep stages in RISP patients. The observed rise was also apparent in other sleep stages. Conversely, alpha power showed a downward trend in RISP patients' deep sleep. MS maps similar to canonical topographies were obtained indicating the preservation of prototypical EEG generators in RISP patients. RISP patients showed significant differences in the temporal dynamics of MS, expressed by different transitions between MS C and D and between MS A and B. Both spectral analysis and MS characteristics showed abnormalities in the sleep of non-episodic RISP subjects. Our findings suggest that in order to understand the neurobiological background of RISP, there is a need to extend the analyzes beyond REM-related processes and highlight the value of EEG microstate dynamics as promising functional biomarkers of RISP.
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Affiliation(s)
- Filip Černý
- Faculty of Biomedical Engineering, Czech Technical University, Prague, Czechia
- Sleep and Chronobiology Research Center, National Institute of Mental Health, Klecany, Czechia
| | - Václava Piorecká
- Faculty of Biomedical Engineering, Czech Technical University, Prague, Czechia
- Sleep and Chronobiology Research Center, National Institute of Mental Health, Klecany, Czechia
| | - Monika Kliková
- Sleep and Chronobiology Research Center, National Institute of Mental Health, Klecany, Czechia
| | - Jana Kopřivová
- Sleep and Chronobiology Research Center, National Institute of Mental Health, Klecany, Czechia
- Third Faculty of Medicine, Charles University, Prague, Czechia
| | - Jitka Bušková
- Sleep and Chronobiology Research Center, National Institute of Mental Health, Klecany, Czechia
- Third Faculty of Medicine, Charles University, Prague, Czechia
| | - Marek Piorecký
- Faculty of Biomedical Engineering, Czech Technical University, Prague, Czechia
- Sleep and Chronobiology Research Center, National Institute of Mental Health, Klecany, Czechia
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Bušková J, Novák T, Miletínová E, Králová R, Košt′álová J, Kliková M, Veldová K. Self-reported symptoms and objective measures in idiopathic hypersomnia and hypersomnia associated with psychiatric disorders: a prospective cross-sectional study. J Clin Sleep Med 2022; 18:713-720. [PMID: 34605393 PMCID: PMC8883091 DOI: 10.5664/jcsm.9702] [Citation(s) in RCA: 8] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
STUDY OBJECTIVES In some patients, it is difficult to correctly nosologically classify daytime sleepiness. Clinical manifestations may be nonspecific; on the basis of objective measures it is possible to determine the current severity of sleepiness, but they do not always allow accurate diagnosis. It is especially difficult to distinguish between idiopathic hypersomnia (IH) and hypersomnia associated with a psychiatric disorder (PSY). METHODS To find significant differences between the IH and PSY groups, we included 67 patients (IH, n = 15; PSY, n = 52) in the study, focusing on differences in self-reported symptoms, evaluating current depressive symptoms using the Beck Depression Inventory-II score and personality traits measured by the Temperament and Character Inventory. All of the patients underwent polysomnography, the Multiple Sleep Latency Test, and ad libitum sleep monitoring. RESULTS The patients with IH showed greater difficulty than those in the PSY group with waking up in the morning (P < .001) and complained of memory (P = .04) and attention deficit (P = .006). They also showed higher total sleep time (P < .001) and sleep efficiency (P = .007) and a shorter mean sleep latency on the Multiple Sleep Latency Test (P < .001). Nevertheless, the IH and PSY groups did not differ in Beck Depression Inventory scores or personality characteristics. CONCLUSIONS IH is a syndrome in which depression/external life stressors and personality characteristics also play a role. Patients with IH may benefit from the cooperation of sleep specialists with psychotherapists/psychiatrists. CITATION Bušková J, Novák T, Miletínová E, et al. Self-reported symptoms and objective measures in idiopathic hypersomnia and hypersomnia associated with psychiatric disorders: a prospective cross-sectional study. J Clin Sleep Med. 2022;18(3):713-720.
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Affiliation(s)
- Jitka Bušková
- National Institute of Mental Health, Klecany, Czech Republic,Third Faculty of Medicine, Charles University, Prague, Czech Republic,Address correspondence to: Jitka Bušková, MD, PhD, Department of Sleep Medicine, National Institute of Mental Health, Topolová 748, 250 67 Klecany, Czech Republic;
| | - Tomáš Novák
- National Institute of Mental Health, Klecany, Czech Republic,Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Eva Miletínová
- National Institute of Mental Health, Klecany, Czech Republic,Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Radana Králová
- National Institute of Mental Health, Klecany, Czech Republic
| | - Jana Košt′álová
- National Institute of Mental Health, Klecany, Czech Republic
| | - Monika Kliková
- National Institute of Mental Health, Klecany, Czech Republic,Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Karolina Veldová
- National Institute of Mental Health, Klecany, Czech Republic,Third Faculty of Medicine, Charles University, Prague, Czech Republic
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Martinec Nováková L, Kliková M, Miletínová E, Bušková J. Olfaction-Related Factors Affecting Chemosensory Dream Content in a Sleep Laboratory. Brain Sci 2021; 11:1225. [PMID: 34573245 PMCID: PMC8465492 DOI: 10.3390/brainsci11091225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 09/01/2021] [Accepted: 09/02/2021] [Indexed: 12/04/2022] Open
Abstract
Mental activity in sleep often involves visual and auditory content. Chemosensory (olfactory and gustatory) experiences are less common and underexplored. The aim of the study was to identify olfaction-related factors that may affect the occurrence of chemosensory dream content. Specifically, we investigated the effects of all-night exposure to an ambient odour, participants' appraisal of their current olfactory environment, their general propensity to notice odours and act on them (i.e., odour awareness), and their olfactory acuity. Sixty pre-screened healthy young adults underwent olfactory assessment, completed a measure of odour awareness, and spent three nights in weekly intervals in a sleep laboratory. The purpose of the first visit was to adapt to the experimental setting. On the second visit, half of them were exposed to the smell of vanillin or thioglycolic acid and the other half to an odourless control condition. On the third visit, they received control or stimulation in a balanced order. On each visit, data were collected twice: once from the first rapid eye movement (REM) stage that occurred after 3 a.m., and then shortly before getting up, usually from a non-REM stage. Participants were asked to report the presence of sensory dream content and to assess their current olfactory environment. Neither exposure, nor participants' assessments of the ambient odour, or olfactory acuity affected reports of chemosensory dream content but they were more frequent in individuals with greater odour awareness. This finding may have implications for treatment when such experiences become unwanted or bothersome.
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Affiliation(s)
- Lenka Martinec Nováková
- National Institute of Mental Health, Topolová 748, 250 67 Klecany, Czech Republic; (M.K.); (E.M.); (J.B.)
- Department of Psychology and Life Sciences, Faculty of Humanities, Charles University, Pátkova 2137/5, 182 00 Prague 8-Libeň, Czech Republic
| | - Monika Kliková
- National Institute of Mental Health, Topolová 748, 250 67 Klecany, Czech Republic; (M.K.); (E.M.); (J.B.)
- Third Faculty of Medicine, Charles University, Ruská 87, 100 00 Prague 10-Vinohrady, Czech Republic
| | - Eva Miletínová
- National Institute of Mental Health, Topolová 748, 250 67 Klecany, Czech Republic; (M.K.); (E.M.); (J.B.)
- Third Faculty of Medicine, Charles University, Ruská 87, 100 00 Prague 10-Vinohrady, Czech Republic
| | - Jitka Bušková
- National Institute of Mental Health, Topolová 748, 250 67 Klecany, Czech Republic; (M.K.); (E.M.); (J.B.)
- Third Faculty of Medicine, Charles University, Ruská 87, 100 00 Prague 10-Vinohrady, Czech Republic
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Kliková M, Piorecký M, Miletínová E, Janků K, Dudysová DU, Bušková J. Objective REM sleep characteristics of recurrent isolated sleep paralysis: a case-control study. Sleep 2021; 44:6305144. [PMID: 34145456 DOI: 10.1093/sleep/zsab153] [Citation(s) in RCA: 2] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 05/05/2021] [Indexed: 11/12/2022] Open
Abstract
STUDY OBJECTIVES Recurrent isolated sleep paralysis (RISP) is a rapid eye movement (REM) parasomnia characterized by a dissociative state with characteristics of REM sleep and wakefulness. Pathophysiology has not yet been clarified and very little research has been performed using objective polysomnographic measures with inconsistent results. The main aim of our study was to find whether higher REM sleep fragmentation is consistent with the theory of state dissociation or whether signs of dissociation can be detected by spectral analysis. METHODS Nineteen participants in the RISP group and 19 age- and gender-matched participants in the control group underwent two consecutive full-night video-polysomnography recordings with 19-channel electroencephalography. Apart from sleep macrostructure, other REM sleep characteristics such as REM arousal index, percentage of wakefulness and stage shifts within REM sleep period were analyzed, as well as power spectral analysis during REM sleep. RESULTS No difference was found in the macrostructural parameters of REM sleep (percentage of REM sleep and REM latency). Similarly, no significant difference was detected in REM sleep fragmentation (assessed by REM sleep arousal index, percentage of wakefulness and stage shifts within REM sleep). Power spectral analysis showed higher bifrontal beta activity in the RISP group during REM sleep. CONCLUSIONS The results showed an underlying persistent trait of higher cortical activity that may predispose patients with SP to be more likely to experience recurrent episodes, without any apparent macrostructural features including higher REM sleep fragmentation.
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Affiliation(s)
- Monika Kliková
- National Institute of Mental Health, Klecany, Czech Republic.,Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Marek Piorecký
- National Institute of Mental Health, Klecany, Czech Republic.,Faculty of Biomedical Engineering, Czech Technical University, Prague, Czech Republic
| | - Eva Miletínová
- National Institute of Mental Health, Klecany, Czech Republic.,Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Karolina Janků
- National Institute of Mental Health, Klecany, Czech Republic.,Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Daniela Urbaczka Dudysová
- National Institute of Mental Health, Klecany, Czech Republic.,Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Jitka Bušková
- National Institute of Mental Health, Klecany, Czech Republic.,Third Faculty of Medicine, Charles University, Prague, Czech Republic
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Bušková J, Miletínová E, Kliková M, Bareš M, Novák T, Kosová J, Stopková P, Kopřivová J. Associated factors of REM sleep without atonia in younger (≤ 50 years) hospitalized psychiatric patients. BMC Psychiatry 2020; 20:482. [PMID: 32998749 PMCID: PMC7528593 DOI: 10.1186/s12888-020-02879-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 09/19/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Isolated REM sleep without atonia (RSWA) as a main polysomnograhic feature of REM sleep behaviour disorder (RBD) is thought to be a prodromal or subclinical state of the disease. RSWA/RBD occurence in psychiatric population is much more frequent than in general population but its associated factors are still not known. METHODS We invited 88 psychiatry in-patients to undervent video-polysomnography. The visual scoring was focused on RSWA in submentales and flexores digitales superficiales muscles. This parametr was subsequently correlated mainly with age/gender, their medication and mental status. RESULTS The RWSA was mostly still in normal range despite the fact, that selected psychiatry patients (≤ 50 years) were taking several classes of psychoactive medication. 3,6% had convincingly RBD, although 35.7% reported rare lifetime occurence of dream-enacting behaviour and 62.8% sporadic nightmares. We found correlation between RSWA and SNRI medication class (p = 0.015), specifically venlafaxine (p = 0.029) as well as quetiapine (p = 0.030). Another significant associated factors were current anxiety (p < 0.001) and depressive symptoms (p = 0.05), but we found no relation between RSWA and given diagnosis. CONLUCIONS Isolated RSWA in younger psychiatry patients might be a result of multiple factors, including medication and current mental status but these factors are in most cases not sufficient to manifest RBD.
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Affiliation(s)
- Jitka Bušková
- Department of Sleep Medicine, National Institute of Mental Health, Topolová 748, 250 67, Klecany, Czech Republic.
- Third Faculty of Medicine, Charles University, Prague, Czech Republic.
| | - Eva Miletínová
- Department of Sleep Medicine, National Institute of Mental Health, Topolová 748, 250 67, Klecany, Czech Republic
- Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Monika Kliková
- Department of Sleep Medicine, National Institute of Mental Health, Topolová 748, 250 67, Klecany, Czech Republic
- Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Martin Bareš
- Department of Sleep Medicine, National Institute of Mental Health, Topolová 748, 250 67, Klecany, Czech Republic
- Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Tomáš Novák
- Department of Sleep Medicine, National Institute of Mental Health, Topolová 748, 250 67, Klecany, Czech Republic
- Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Jiřina Kosová
- Department of Sleep Medicine, National Institute of Mental Health, Topolová 748, 250 67, Klecany, Czech Republic
- Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Pavla Stopková
- Department of Sleep Medicine, National Institute of Mental Health, Topolová 748, 250 67, Klecany, Czech Republic
- Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Jana Kopřivová
- Department of Sleep Medicine, National Institute of Mental Health, Topolová 748, 250 67, Klecany, Czech Republic
- Third Faculty of Medicine, Charles University, Prague, Czech Republic
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Kliková M, Sharpless BA, Bušková J. Could sleep paralysis be pleasant? J Sleep Res 2020; 30:e13154. [PMID: 32869388 DOI: 10.1111/jsr.13154] [Citation(s) in RCA: 4] [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: 03/27/2020] [Revised: 06/24/2020] [Accepted: 07/07/2020] [Indexed: 11/27/2022]
Abstract
Sleep paralysis is an inability to move at sleep onset or upon awakening. It is often a distressing experience that can be associated with significant clinical consequences. Few studies have focussed on pleasant sleep paralysis episodes. The present study aimed to determine the relative prevalence of pleasant episodes of sleep paralysis as well as variables that may make them more likely to occur. Participants (N = 172) with recurrent episodes of sleep paralysis completed a battery of questionnaires investigating sleep paralysis episodes, trauma symptoms, life satisfaction, and Big Five personality traits. Pleasant sleep paralysis was found to be a fairly common experience (i.e. 23%). Episodes were emotionally complex, with pleasant episodes often involving some admixture of fear. In terms of hallucinations, pleasant episodes were more likely to involve vestibular-motor sensations (i.e. illusory body movements) and some individuals reported an ability to induce these hallucinations. Contrary to expectation, neither lower trauma symptomatology nor higher levels of reported life satisfaction predicted pleasant sleep paralysis. However, the ability to lucid dream and higher levels of trait openness to new experiences appeared to make pleasant episodes more likely. Clinical implications are discussed.
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Affiliation(s)
- Monika Kliková
- National Institute of Mental Health, Klecany, Czech Republic.,Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Brian A Sharpless
- Department of Psychology, St. Mary's College of Maryland, USA.,Department of Psychology, Goldsmiths, University of London, UK
| | - Jitka Bušková
- National Institute of Mental Health, Klecany, Czech Republic.,Third Faculty of Medicine, Charles University, Prague, Czech Republic
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Kliková M, Kosová J, Stopková P, Bušková J. The effect of CBT for anxiety disorders on nightmares and sleep quality. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Dudysová D, Kozáková E, Bakštein E, Saifutdinova E, Mander B, Janků K, Kliková M, Miletínová E, Bartoš A, Kopřivová J. Sleep spindle decline in aging and its relation to resting-state thalamocortical connectivity - preliminary findings. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Anýž J, Bakštein E, Dudysová D, Veldová K, Kliková M, Fárková E, Kopřivová J, Španiel F. No wink of sleep: Population sleep characteristics in response to the brexit poll and the 2016 U.S. presidential election. Soc Sci Med 2019; 222:112-121. [DOI: 10.1016/j.socscimed.2018.12.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 11/16/2018] [Accepted: 12/17/2018] [Indexed: 01/23/2023]
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