Results 101 to 110 of about 40,888 (283)

Inactivity/sleep in two wild free-roaming African elephant matriarchs - Does large body size make elephants the shortest mammalian sleepers? [PDF]

, 2017
The current study provides details of sleep (or inactivity) in two wild, free-roaming African elephant matriarchs studied in their natural habitat with remote monitoring using an actiwatch subcutaneously implanted in the trunk, a standard elephant collar
Bhagwandin, Adhil, Bhagwandin, Adhil, Chase, Michael J, Gravett, Nadine, Landen, Kelly, Lyamin, Oleg I, Manger, Paul R, Siegel, Jerome M, Sutcliffe, Robert   +8 more
core   +2 more sources

Advances in Clinical Actigraphy [PDF]

Journal of Lung, Pulmonary & Respiratory Research, 2015
Submit Manuscript | http://medcraveonline.com J Lung Pulm Respir Res 2015, 2(4): 00051 meaningful understanding of daily sleep-wake cycles, and so, with this data, the clinician can feel more confident in the diagnosis and management of circadian rhythm disorders, sleep-wake misperception, insomnia, hypersomnia, and sleep disordered breathing [1]. This
openaire   +1 more source

Narcolepsy and rapid eye movement sleep

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Since the first description of narcolepsy at the end of the 19th Century, great progress has been made. The disease is nowadays distinguished as narcolepsy type 1 and type 2. In the 1960s, the discovery of rapid eye movement sleep at sleep onset led to improved understanding of core sleep‐related disease symptoms of the disease (excessive ...
Francesco Biscarini, Lucie Barateau, Fabio Pizza, Giuseppe Plazzi, Yves Dauvilliers   +4 more
wiley   +1 more source

Insights from 24-hour actigraphy using functional linear modeling in children with and without ADHD

Scientific Reports
Sleep problems and alterations in circadian rhythmicity have been widely reported in attention-deficit/hyperactivity disorder (ADHD) patients, but studies covering the full 24h-motor-activity patterns to explore whole-day activity cycles are scarce ...
Mirjam Ziegler, Pascal Maurice Aggensteiner, Katja Becker, Manfred Döpfner, Julia Geissler, Sarah Hohmann, Reto Huber, Christine Igel, Karina Janson, Konstantin Mechler, Sabina Millenet, Marcel Romanos, Daniel Brandeis, Tobias Banaschewski, Anna Kaiser   +14 more
doaj   +1 more source

Is sleep affected after microgravity and hypergravity exposure? A pilot study

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Sleep is known to be affected in space travel and in residents of the international space station. But little is known about the direct effects of gravity changes on sleep, if other factors, such as sleep conditions, are kept constant. Here, as a first exploration, we investigated sleep before and after exposure to short bouts of microgravity ...
Barbara Le Roy, Aurore Jouvencel, Anika Friedl‐Werner, Ludmila Renel, Youcef Cherchali, Raouf Osseiran, Ernesto Sanz‐Arigita, Jean‐René Cazalets, Etienne Guillaud, Ellemarije Altena   +9 more
wiley   +1 more source

Factors affecting the sleep of one-year-olds : a pilot study using objective monitoring of New Zealand infants : a thesis presented in partial fulfilment of the requirements of the degree of Master of Science in Psychology at Massey University, Wellington, New Zealand [PDF]

, 2009
Sleep takes time to mature and in infancy the structure and cycle of sleep differs greatly to that of adults. Data concerning normative sleep of infants is lacking due to few studies using objective measures.
Gibson, Rosemary H
core  

Chronotype in relation to shift work: A cohort study among 37,731 female nurses

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Chronotype may affect tolerance for circadian disruption induced by shift work. This study examines the association between chronotype, self‐reported sleep timing, shift type preference, and sleep problems among nurses, and studies chronotype stability over time.
Linske de Bruijn, Nina E. Berentzen, Roel C. H. Vermeulen, Jelle J. Vlaanderen, Hans Kromhout, Flora E. van Leeuwen, Michael Schaapveld   +6 more
wiley   +1 more source

Total sleep time obtained from actigraphy versus sleep logs in an academic sleep center and impact on further sleep testing

Nature and Science of Sleep, 2013
R Robert Auger,1,2 Ranji Varghese,1 Michael H Silber,1,3 Nancy L Slocumb1 1Center for Sleep Medicine, 2Department of Psychiatry and Psychology, 3Department of Neurology, Mayo Clinic College of Medicine, Rochester, MN, USA Background: While actigraphy has
Auger RR, Varghese R, Silber MH, Slocumb NL   +3 more
doaj  

Psychophysical changes after total sleep deprivation and experimental muscle pain

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Sleep disturbances exacerbate chronic pain, increase psychological load, and increase inflammation. Delayed onset muscle soreness (DOMS) mimics aspects of chronic pain, predominantly affecting peripheral pain mechanisms, while experimental sleep provocations have been shown to impact central pain mechanisms.
Emma Hertel, Elaxmi Sathiyalingam, Linea Pilgaard, Simone Juline Brommann, Rocco Giordano, Kristian Kjær‐Staal Petersen   +5 more
wiley   +1 more source

Dream habits in a large cohort of preteens and their relation to sleep and nocturnal awakenings

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary The present study examined dream habits, and their relation to sleep patterns, in 1151 preteens (597 boys; 554 girls; 11.31 ± 0.62 years old). Dream questionnaires assessed the frequency of dream recall, nightmare, and lucid dream, as well as the intensity of emotions experienced in dreams. Sleep variables included sleep duration and efficiency,
Jean‐Baptiste Eichenlaub, Romain Bouet, Mathieu Pinelli, Sophie Portrat   +3 more
wiley   +1 more source