Results 51 to 60 of about 226,654 (353)

Effects of thermal environment on sleep and circadian rhythm [PDF]

open access: yes, 2012
The thermal environment is one of the most important factors that can affect human sleep. The stereotypical effects of heat or cold exposure are increased wakefulness and decreased rapid eye movement sleep and slow wave sleep.
Kazue Okamoto-Mizuno, Koh Mizuno
core   +1 more source

The Effect of Baclofen on Alterations in the Sleep Patterns Induced by Different Stressors in Rats

open access: yesJournal of Pharmacological Sciences, 2009
We have previously reported that sleep patterns are significantly affected by both physical and psychological stress induced by a communication box ; however, the mechanism by which stress alters sleep patterns was not established.
Ranji Cui   +3 more
doaj   +1 more source

Colony‐stimulating factors in rapid eye movement sleep and non‐rapid eye movement sleep regulation [PDF]

open access: yesPsychiatry and Clinical Neurosciences, 1999
Although several cytokines are known to be somnogenic, no study has been conducted to examine whether colony‐stimulating factors (CSF) affect sleep. Therefore, we studied the effects of granulocyte‐macrophage CSF (GM‐CSF) and macrophage CSF (M‐CSF) on sleep in rats and their possible mechanism of action.
M, Kimura   +4 more
openaire   +2 more sources

Quantifying sleep architecture dynamics and individual differences using big data and Bayesian networks [PDF]

open access: yes, 2018
The pattern of sleep stages across a night (sleep architecture) is influenced by biological, behavioral, and clinical variables. However, traditional measures of sleep architecture such as stage proportions, fail to capture sleep dynamics.
Cellini, Nicola   +4 more
core   +2 more sources

Rapid eye movement dependent central apnea with periodic leg movements

open access: yesAnnals of Indian Academy of Neurology, 2013
Central sleep apnea is a period of at least 10 s without airflow, during which no ventilatory effort is present. Most of the central apneas occur in Non-Rapid eye movement (NREM) sleep.
Melike Yüceege   +3 more
doaj   +1 more source

A continuum model for the dynamics of the phase transition from slow-wave sleep to REM sleep [PDF]

open access: yes, 2010
Previous studies have shown that activated cortical states (awake and rapid eye-movement (REM) sleep), are associated with increased cholinergic input into the cerebral cortex.
Li, Xiaoli   +5 more
core   +2 more sources

EEG oscillations during sleep and dream recall. State- or trait-like individual differences? [PDF]

open access: yes, 2015
Dreaming represents a peculiar form of cognitive activity during sleep. On the basis of the well-known relationship between sleep and memory, there has been a growing interest in the predictive role of human brain activity during sleep on dream recall ...
D'ATRI, AURORA   +4 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

open access: yesBrazilian 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   +5 more
doaj   +1 more source

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

open access: yesClinics, 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   +8 more
doaj   +1 more source

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

open access: yes, 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   +3 more
core   +1 more source

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