Results 41 to 50 of about 206,572 (209)

A Feasibility Study on Bioradar Eye Movement Detection for Sleep Stage Classification

Zhongguo yiliao qixie zazhi
To address the problem of low classification accuracy in existing bioradar sleep staging technology caused by the use of indirect physiological features, research on bioradar sleep eye movement detection is conducted.
Tingwei LEI, Yuan ZHOU, Minghao BAI, Yunting DUAN, Tianjiao GUO, Qiang AN, Lantao LIU, Hao LYU   +7 more
doaj   +1 more source

Neuronal avalanches differ from wakefulness to deep sleep - evidence from intracranial depth recordings in humans [PDF]

, 2013
Neuronal activity differs between wakefulness and sleep states. In contrast, an attractor state, called self-organized critical (SOC), was proposed to govern brain dynamics because it allows for optimal information coding.
Le Van Quyen, Michel, Priesemann, Viola, Valderrama, Mario, Wibral, Michael   +3 more
core   +3 more sources

Sociality Affects REM Sleep Episode Duration Under Controlled Laboratory Conditions in the Rock Hyrax, Procavia capensis. [PDF]

, 2017
The rock hyrax, Procavia capensis, is a highly social, diurnal mammal. In the current study several physiologically measurable parameters of sleep, as well as the accompanying behavior, were recorded continuously from five rock hyraxes, for 72 h under ...
Adhil Bhagwandin, Jerome M. Siegel, Jerome M. Siegel, Nadine Gravett, Oleg I. Lyamin, Oleg I. Lyamin, Paul R. Manger   +6 more
core   +2 more sources

Association of tinnitus with obstructive sleep apnea and rapid eye movement-related obstructive sleep apnea in similar hearing threshold groups

Brazilian Journal of Otorhinolaryngology
Objectives: Obstructive sleep apnea, a multisystem disease, affects cochlear and vestibular functions due to chronic intermittent hypoxia and recurrent oxygen desaturation.
Sun Choi, Seok Hyun Park, Su Yeon Kim, Su Kyoung Park, Sang Chul Park, Jiwon Chang   +5 more
doaj   +1 more source

Effects of sildenafil on autonomic nervous function during sleep in obstructive sleep apnea

Clinics, 2010
OBJECTIVE: To evaluate the effects of sildenafil on the autonomic nervous system in patients with severe obstructive sleep apnea. METHODS: Thirteen male patients with severe obstructive sleep apnea (mean age 43±10 years with a mean body mass index of 26 ...
Christiane Neves, Sérgio Tufik, Felipe Chediek, Dalva Poyares, Fátima Cintra, Marina Roizenblatt, Fabiano Abrantes, Marina Ariza Monteiro, Suely Roizenblatt   +8 more
doaj   +1 more source

Effects of valerian extract on the sleep-wake cycle in sleep-disturbed rats. [PDF]

, 2005
The present study was performed to investigate the effects of valerian extract on the sleep-wake cycle using sleep-disturbed model rats. A significant shortening in sleep latency was observed with valerian extract at doses of 1000 and 3000 mg/kg.
Fujimura, Katsuyuki, Kamei, Chiaki, Kim, Yonsu, Shinomiya, Kazuaki   +3 more
core   +1 more source

Nigrostriatal Dopaminergic Dysfunction and Altered Functional Connectivity in REM Sleep Behavior Disorder With Mild Motor Impairment

Frontiers in Neurology, 2019
Rapid eye movement sleep behavior disorder is parasomnia characterized by symptoms of dream enactment and loss of muscle atonia during rapid eye movement sleep.
Gohei Yamada, Yoshino Ueki, Naoya Oishi, Takuya Oguri, Takuya Oguri, Ayako Fukui, Meiho Nakayama, Yuko Sano, Akihiko Kandori, Hirohito Kan, Nobuyuki Arai, Keita Sakurai, Ikuo Wada, Noriyuki Matsukawa   +13 more
doaj   +1 more source

Are there sleep-specific phenotypes in patients with chronic fatigue syndrome? A cross-sectional polysomnography analysis [PDF]

, 2013
Objectives: Despite sleep disturbances being a central complaint in patients with chronic fatigue syndrome (CFS), evidence of objective sleep abnormalities from over 30 studies is inconsistent.
Deary, Vincent, Ellis, Jason, Gotts, Zoe, Newton, Julia   +3 more
core   +1 more source

Lurasidone Suppresses Rapid Eye Movement Sleep and Improves Sleep Quality in Rats

Journal of Pharmacological Sciences, 2014
.: Patients with psychiatric disorders, including schizophrenia, are reported to suffer from sleep disorders. In this study, we investigated the effects of lurasidone, an atypical antipsychotic, on sleep architecture in rats using sleep ...
Takeshi Murai, Keiko Nakamichi, Isao Shimizu, Kazuhito Ikeda   +3 more
doaj   +1 more source

Eye movement patterns correlate with overt emotional behaviours in rapid eye movement sleep

Scientific Reports, 2022
Growing evidence suggests that sleep plays a key role in regulating emotions. Rapid eye movements (REMs) in REM sleep could be associated with dreams emotions, but supporting evidence is indirect.
Jean-Baptiste Maranci, Milan Nigam, Luc Masset, Eva-Flore Msika, Marie Charlotte Vionnet, Charlotte Chaumereil, Marie Vidailhet, Smaranda Leu-Semenescu, Isabelle Arnulf   +8 more
doaj   +1 more source