9 documents found, page 1 of 1
Prevalence rates of frequent dream recall and nightmares by age, gender and sle...
Bolstad, Courtney J.; Bjorvatn, Bjørn; Chan, Ngan Yin; Chung, Frances; Dauvilliers, Yves; De Gennaro, Luigi; Espie, Colin A.; Holzinger, BrigitteThe present study aimed to describe the prevalence rates of frequent (i.e., at least weekly) dream recall and nightmares with consideration for differences in age, gender and sleep duration in 16 countries using equivalent assessment methods. The study sample included 15,854 participants (69.9% women) aged 18–99 years (M = 42.39, SD = 16.43) collected by the International COVID-19 Sleep Study collaboration, whi...
Lucid dreaming: not just awareness, but agency
Ableidinger, Severin; DeGennaro, Luigi; Mota-Rolim, Sergio; Scarpelli, Serena; Bolstad, Courtney J.; Bjorvatn, Bjørn; Espie, Colin A.; Dauvilliers, YvesDuring lucid dreaming (LD), dreamers are aware that they are dreaming and may be able to influence the oneiric content. There has been recent debate about the relative importance of the ability to influence the dream and having agency over the pure awareness of dreaming. To underline this, we examined the associations of lucid dreams without agency (LD?Ag) and lucid dreams with agency (LD + Ag) to sleep and men...
Prevalence rates of frequent dream recall and nightmares by age, gender and sle...
Bolstad, Courtney J.; Bjorvatn, Bjørn; Chan, Ngan Yin; Chung, Frances; Dauvilliers, Yves; De Gennaro, Luigi; Espie, Colin A.; Holzinger, BrigittePurpose of review: This article summarizes the cognitive and behavioral functions of the prefrontal cortex with an emphasis on executive cognitive functions and the clinical consequences associated with executive dysfunction. The clinical manifestations of lesions to the lateral prefrontal, orbitofrontal, medial prefrontal, and frontopolar cortex are reviewed. Recent findings: Traditional lesion studies have em...
Long COVID as a risk factor for hypersomnolence and fatigue: insights from the ...
Sarkanen, Tomi; Merikanto, Ilona; Bjorvatn, Bjorn; Chung, Frances; Holzinger, Brigitte; Morin, Charles M.; Penzel, Thomas; Gennaro, Luigi deBackground: Hypersomnolence, defined as excessive daytime sleepiness (EDS), excessive quantity of sleep (EQS), sleep inertia, and fatigue reduce quality of life. We assessed associations of the COVID-19 pandemic, infection without long-term sequalae (short COVID, SC), and long COVID (LC) on hypersomnolence and fatigue in a large population across different countries. Methods: As part of an online questionnaire ...
Estimation bias and agreement limits between two common self-report methods of ...
Korman, Maria; Zarina, Daria; Tkachev, Vadim; Merikanto, Ilona; Bjorvatn, Bjørn; Bjelajac, Adrijana Koscec; Penzel, Thomas; Landtblom, Anne MarieAccurate measurement of habitual sleep duration (HSD) is crucial for understanding the relationship between sleep and health. This study aimed to assess the bias and agreement limits between two commonly used short HSD self-report methods, considering sleep quality (SQ) and social jetlag (SJL) as potential predictors of bias. Data from 10,268 participants in the International COVID Sleep Study-II (ICOSS-II) wer...
Nightmare frequency is a risk factor for suicidal ideation during the COVID‐19 ...
Bolstad, Courtney J.; Holzinger, Brigitte; Scarpelli, Serena; De Gennaro, Luigi; Yordanova, Juliana; Koumanova, Silvia; Mota‐Rolim, SérgioThe association between nightmare frequency (NMF) and suicidal ideation (SI) is well known, yet the impact of the COVID-19 pandemic on this relation is inconsistent. This study aimed to investigate changes in NMF, SI, and their association during the COVID-19 pandemic. Data were collected in 16 countries using a harmonised questionnaire. The sample included 9328 individuals (4848 women; age M[SD] = 46.85 [17.75...
Persistent short nighttime sleep duration is associated with a greater post-COV...
Xue, Pei; Merikanto, Ilona; Chung, Frances; Morin, Charles M.; Espie, Colin; Bjorvatn, Bjørn; Cedernaes, Jonathan; Landtblom, Anne Marie; Penzel, ThomasShort nighttime sleep duration impairs the immune response to virus vaccination, and long nighttime sleep duration is associated with poor health status. Thus, we hypothesized that short (<6 h) and long (>9 h) nighttime sleepers have a higher post-COVID risk than normal nighttime sleepers, despite two doses of mRNA vaccine (which has previously been linked to lower odds of long-lasting COVID-19 symptoms). Post-...
Associations between changes in habitual sleep duration and lower self-rated he...
Matsui, Kentaro; Chung, Frances; Bjelajac, Adrijana Koscec; Merikanto, Ilona; Korman, Maria; Mota-Rolim, Sérgio; Cunha, Ana Suely; Bjorvatn, BjørnBackground: Self-rated health (SRH) is widely recognized as a clinically significant predictor of subsequent mortality risk. Although COVID-19 may impair SRH, this relationship has not been extensively examined. The present study aimed to examine the correlation between habitual sleep duration, changes in sleep duration after infection, and SRH in subjects who have experienced SARS-CoV-2 infection. Methods: Par...
Persistent short nighttime sleep duration is associated with a greater post-COV...
Xue, Pei; Merikanto, Ilona; Chung, Frances; Morin, Charles M.; Espie, Colin; Bjorvatn, Bjørn; Cedernaes, Jonathan; Landtblom, Anne-Marie; Penzel, ThomasShort nighttime sleep duration impairs the immune response to virus vaccination, and long nighttime sleep duration is associated with poor health status. Thus, we hypothesized that short (<6 h) and long (>9 h) nighttime sleepers have a higher post-COVID risk than normal nighttime sleepers, despite two doses of mRNA vaccine (which has previously been linked to lower odds of long-lasting COVID-19 symptoms). Post-...