Movement Disorders Clinical Practice
August 9, 2021
Abidemi I Otaiku
Background: Dream content alterations in Parkinson's disease (PD) are associated with motor and cognitive dysfunction cross-sectionally. Although recent studies suggest abnormal dream content in PD might also predict cognitive decline, the relationship between dream content and motor decline in PD remains unknown. Objective: To investigate whether abnormal dream content in PD predicts both...
Preprints.org
August 3, 2021
Rabya Mughal, Siu Sing Wong, Dagmara Dimitriou et al.
preprint
Children with Fetal Alcohol Spectrum Disorders (FASD) and Autism Spectrum Disorders (ASD) experience significantly higher rates of sleep disturbances than their typically developing peers. Pre-sleep anxiety and waking emotional content is known to affect the content and frequency of nightmares, which can be distressing to children and caregivers. This is the first study to analyse nightmare...
Consciousness and Cognition
August 1, 2021
Piotr Szymanek
4 citations
The commonsense view is that a lucid dream starts when the dreamer realizes that they are currently dreaming. The notion of realization, however, has been accepted at face value, with little consideration of whether the dreamer realizes that they are dreaming in the sense of actual reasoning, or if it is a mere epiphenomenon of lucid dream initiation. This article offers a solution to this...
PsyArXiv
July 31, 2021
preprint
The commonsense view is that a lucid dream starts when the dreamer realizes that they are currently dreaming. The notion of realization, however, has been accepted at face value, with little consideration of whether the dreamer realizes that they are dreaming in the sense of actual reasoning, or if it is a mere epiphenomenon of lucid dream initiation. This article offers a solution to this...
Journal of Psychopharmacology
July 28, 2021
Philippe Garcia, Jean-Louis Montastruc, Vanessa Rousseau et al.
Aim: To compare different β-adrenoceptor antagonists for the risk of reporting nightmare. Methods: The study involved two approaches: first, we investigated in VigiBase®, the World Health Organization Individual Case Safety Report (ICSR) database, the disproportionality between exposure to each β-adrenoceptor antagonists and reports of nightmares between 1967 and 2019. Second, in a...
Frontiers in Psychology
July 27, 2021
Marleide da Mota Gomes, Antonio E Nardi
Charles Dickens outlined a variety of manifestations of sleep and its disturbances, which were presumably related to his own and those of family and friends, also expressed in some of his characters. There are many reports of the dream-reality confusion through the anguished young Oliver Twist, the protagonist of the book of the same name. The virtual world of dreams is important for Dickens’...
Clocks & Sleep
July 22, 2021
Athanasios Tselebis, Emmanouil Zoumakis, Ioannis Ilias
In this concise review, we present an overview of research on dream recall/affect and of the hypothalamic-pituitary-adrenal (HPA) axis, discussing caveats regarding the action of hormones of the HPA axis (mainly cortisol and its free form, cortisol-binding globulin and glucocorticoid receptors). We present results of studies regarding dream recall/affect and the HPA axis under physiological...
International Clinical Psychopharmacology
July 1, 2021
Hikaru Hori
This article reports on the treatment of a patient with nightmares who was treated with doxazosin of an alpha 1-adrenergic antagonists. A 71-year-old Japanese major depressive disorder (MDD) woman experienced nightmares after the coronavirus disease 2019 pandemic. She had nightmares about being chased by a coronavirus and catching the corona virus. After adding doxazosin 1 mg daily in the...
bioRxiv
June 17, 2021
Perrine Ruby, Rémy Masson, Benoit Chatard et al.
preprint
Event-related potentials (ERPs) associated with the involuntary orientation of (bottom-up) attention towards an unexpected sound are of larger amplitude in high dream recallers (HR) than in low dream recallers (LR) during passive listening, suggesting different attentional functioning. We measured bottom-up and top-down attentional performance and their cerebral correlates in 18 HR (11 women,...
SLEEP Advances
June 17, 2021
Patrick Mcnamara, Wesley J Wildman, George Hodulik et al.
Study objectives: To test and extend Levin & Nielsen's (2007) Affective Network Dysfunction (AND) model with nightmare disorder (ND) image characteristics, and then to implement the extension as a computational simulation, the Disturbed Dreaming Model (DDM). Methods: We used AnyLogic V7.2 to computationally implement an extended AND model incorporating quantitative effects of image...
British Journal of Psychology
June 9, 2021
Jarno Tuominen, Henri Olkoniemi, Antti Revonsuo et al.
12 citations
Based on the Social Simulation Theory of dreaming (SST), we studied the effects of voluntary social seclusion on dream content and sleep structure. Specifically, we studied the Compensation Hypothesis, which predicts social dream contents to increase during social seclusion, the Sociality Bias - a ratio between dream and wake interactions - and the Strengthening Hypothesis, which predicts an...
Frontiers in Psychology
June 4, 2021
Jiaxi Wang, JingYu He, Ting Bin et al.
correction
[This corrects the article DOI: 10.3389/fpsyg.2020.01430.].
Dreaming
June 1, 2021
K. Miller, R. Ross, Gerlinde C. Harb
A previous study in military veterans with posttraumatic stress disorder (PTSD) and recurrent nightmares found a high prevalence of lucid dreaming (LD), the awareness while a dream continues that one is dreaming, and an “LD profile” characterized by frequent dream awareness and rare dream content control. Given the importance of the nightmare disturbance in PTSD, this study assessed with...
Journal of Sleep Research
June 1, 2021
Jaap Lancee, Marieke Effting, Anna E Kunze
The currently best-supported psychological treatment for nightmares is imagery rehearsal therapy. The problem, however, is that not enough trained practitioners are available to offer this treatment. A possible solution is to conduct imagery rehearsal therapy in a guided self-help format. In the current study, 70 participants with nightmares according to the fifth edition of the Diagnostic and...
Dreaming
June 1, 2021
Katherine E Miller, Richard J Ross, Gerlinde C. Harb
A previous study in military veterans with posttraumatic stress disorder (PTSD) and recurrent nightmares found a high prevalence of lucid dreaming (LD), the awareness while a dream continues that one is dreaming, and an "LD profile" characterized by frequent dream awareness and rare dream content control. Given the importance of the nightmare disturbance in PTSD, this study assessed with...
Trends in Cognitive Sciences
June 1, 2021
Benjamin Baird, Stephen LaBerge, Giulio Tononi
13 citations
Dreamers were long thought absolutely isolated from the outside world. Yet psychophysiological studies over the past 40 years have firmly established that lucid dreamers can use eye movements to report on their dream content in real time while in rapid eye movement (REM) sleep. We now also know that sensory input is not completely suppresssed during sleep. A recent study by Konkoly et al....
Clocks & Sleep
May 26, 2021
Michael Schredl, Lara C Wood
Romantic relationships are an important part of human life and thus, according to the continuity hypothesis of dreaming, one's romantic partner should show up in dreams quite frequently. The present study is based on 1612 dream reports provided by 425 students. The findings confirmed the hypothesis that partner dreams are more frequent than ex-partner dreams and, thus, support the continuity...
Brain and Behavior
May 14, 2021
Katsumasa Sogo, Masanobu Sogo, Yoshie Okawa
Introduction: Following a case study on scopolamine butyl bromide, an anticholinergic drug, we studied the effect of a central anticholinergic drug on post-traumatic stress disorder (PTSD)-related flashbacks and nightmares. Methods: We administered trihexyphenidyl (TP) to 34 patients with refractory PTSD-related nightmares and flashbacks (open-label trial [n = 22]; single-blind trial [n = 12]),...
PsyArXiv
May 11, 2021
Elizaveta Solomonova, Claudia Picard-Deland, Iris L Rapoport et al.
preprint
Background: An upsurge in dream and nightmare frequency has been noted since the beginning of the COVID-19 pandemic and research shows increases in levels of stress, depression and anxiety during this time. Growing evidence suggests that dream content has a bi-directional relationship with psychopathology, and that dreams react to new, personally significant and emotional experiences. The first...
May 7, 2021
A. Turchin
preprint
Lucid dreaming (LD) is a fun and interesting activity, but most participants have difficulties in attaining lucidity, retaining it during the dream, concentrating on the needed task and remembering the results. This motivates to search for a new way to enhance lucid dreaming via different induction techniques, including chemicals and electric brain stimulation. However, results are still...