19 documents found, page 1 of 2
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...
Associations between obesity, a composite risk score for probable long COVID, a...
Xue, Pei; Merikanto, Ilona; Delale, Eva A.; Bjelajac, Adrijana; Yordanova, Juliana; Chan, Rachel N. Y.; Korman, Maria; Mota-Rolim, Sérgio A.Background: Preliminary data suggests that obesity might hasten the decline in mRNA vaccine-induced immunity against SARS-CoV-2. However, whether this renders individuals with obesity more susceptible to long COVID symptoms post-vaccination remains uncertain. Given sleep’s critical role in immunity, exploring the associations between obesity, probable long COVID symptoms, and sleep disturbances is essential. Me...
Habitual short sleepers with pre-existing medical conditions are at higher risk...
Berezin, Linor; Waseem, Rida; Merikanto, Ilona; Benedict, Christian; Holzinger, Brigitte; De Gennaro, Luigi; Wing, Yun Kwok; Bjorvatn, BjørnStudy objectives: Preliminary evidence suggests that the risk of Long COVID is higher among people with pre-existing medical conditions. Based on its proven adjuvant role in immunity, habitual sleep duration may alter the risk of developing Long COVID. The objective of this study was to determine whether the odds of Long COVID are higher among those with pre-existing medical conditions, and whether the strength...
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...
Sleep symptoms are essential features of long-COVID – comparing healthy control...
Merikanto, Ilona; Dauvilliers, Yves; Chung, Frances; Wing, Yun Kwok; de Gennaro, Luigi; Holzinger, Brigitte; Bjorvatn, Bjørn; Morin, Charles M.Many people report suffering from post-acute sequelae of COVID-19 or “long-COVID”, but there are still open questions on what actually constitutes long-COVID and how prevalent it is. The current definition of post-acute sequelae of COVID-19 is based on voting using the Delphi-method by the WHO post-COVID-19 working group. It emphasizes long-lasting fatigue, shortness of breath and cognitive dysfunction as the c...
The association of insomnia with long COVID: an international collaborative stu...
Chen, Si Jing; Morin, Charles M.; Ivers, Hans; Wing, Yun Kwok; Partinen, Markku; Merikanto, Ilona; Holzinger, Brigitte; Espie, Colin A.Objective: There is evidence of a strong association between insomnia and COVID-19, yet few studies have examined the relationship between insomnia and long COVID. This study aimed to investigate whether COVID-19 patients with pre-pandemic insomnia have a greater risk of developing long COVID and whether long COVID is in turn associated with higher incident rates of insomnia symptoms after infection. Methods: D...