59 documents found, page 1 of 6
Sensor based sleep patterns and reported sleep quality in breast cancer patient...
Malveiro, Carla; Boavida, Sofia; Cargaleiro, Catarina; Bernardino, Ana V.; Correia, Inês R.; Reis, Cátia; Matos, Leonor; Sardinha, Luis B.Breast cancer is the most diagnosed cancer in women worldwide and its treatment often leads to the onset of sleep disturbances. While much research has focused on chemotherapy’s impact on overall sleep quality through subjective measures, less attention has been given to its effects on specific sleep metrics such as duration, timing, continuity, and naps. This preliminary study addresses this gap by assessing s...
Biphasic sleep and human health: a theoretical paradigm for personalized sleep
Sena-Ribeiros, João; Reis, CátiaAs our understanding of sleep evolves, a recurring recommendation remains that adults should sleep in a single, uninterrupted nocturnal bout – commonly referred to as monophasic sleep. However, the scientific foundation for this standard may be less canonical than previously assumed, particularly when considering individual variability in sleep needs and organization. Historical texts and recent research sugges...
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...
Sleep and circadian rhythms in delayed sleep–wake phase disorder: phenotypic di...
Reis, Cátia; Pilz, Luísa K.; Paiva, Teresa; Hidalgo, Maria Paz; Wright, Kenneth P.Delayed sleep-wake phase disorder involves chronic difficulty going to bed and waking up at conventional times and often co-occurs with depression. This study compared sleep and circadian rhythms between patients with delayed sleep-wake phase disorder with depression (DSWPD-D) and without (DSWPD-ND) comorbid depression. Clinical records of 162 patients with delayed sleep-wake phase disorder (70 DSWPD-D, 92 DSWP...
Sensor based sleep patterns and reported sleep quality in breast cancer patient...
Malveiro, Carla; Boavida, Sofia; Cargaleiro, Catarina; Bernardino, Ana Vilelas; Correia, Inês; Reis, Cátia; Matos, Leonor; Sardinha, Luís B.Breast cancer is the most diagnosed cancer in women worldwide and its treatment often leads to the onset of sleep disturbances. While much research has focused on chemotherapy's impact on overall sleep quality through subjective measures, less attention has been given to its effects on specific sleep metrics such as duration, timing, continuity, and naps. This preliminary study addresses this gap by assessing s...
Relaxation of social time pressure reveals tight coupling between daily sleep a...
Korman, Maria; Fleischmann, Chen; Tkachev, Vadim; Reis, Cátia; Komada, Yoko; Gubin, Denis; Kumar, Vinod; Kitamura, Shingo; Roenneberg, TillStudy Objectives: As a day-active species, humans abstain from some or all foods and beverages and rest at night. The modern social clock diverged from the natural light–dark clock with far-stretching consequences for both fasting/eating and sleep/wake daily cycles. Methods: During the COVID-19 pandemic, prolonged social restrictions (SRs) offered a quasi-experimental protocol to directly test the impact of the...
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 ...
Weight loss in patients with severe obesity after bariatric surgery - the poten...
Rodrigues, Joana; Magalhães, Vânia; Santos, Maria Paula; Reis, Cátia; Pichel, Fernando; Soares, Paulo; Santos, Jorge; Vilela, SofiaBackground Despite the potential effectiveness of bariatric surgery in promoting weight loss, a considerable proportion of patients still face the challenge of achieving optimal post-surgery outcomes. The timing of eating, in addition to the content of what is eaten, as well as chronotype and social jetlag (a marker of circadian misalignment), have been implicated in weight regulation. However, the current unde...