Results 1 to 10 of about 1,084 (70)

Cortical astrocytes independently regulate sleep depth and duration via separate GPCR pathways

open access: yeseLife, 2021
Non-rapid eye movement (NREM) sleep, characterized by slow-wave electrophysiological activity, underlies several critical functions, including learning and memory. However, NREM sleep is heterogeneous, varying in duration, depth, and spatially across the
Trisha V Vaidyanathan   +4 more
doaj   +1 more source

Characteristics of ventromedial thalamic neuronal activity during sleep-wake cycle in mice

open access: yes陆军军医大学学报, 2022
Objective To investigate the characteristics of ventromedial thalamus (VM) neuronal activity during sleep-wake cycles. Methods Both the oscillation state of electrical activity in the parietal cortex and three-dimensional acceleration of the head and ...
WANG Bin   +5 more
doaj   +1 more source

Blood pressure dipping during REM and non-REM sleep in patients with moderate to severe obstructive sleep apnea

open access: yesScientific Reports, 2021
A limited number of papers have addressed the association between non-dipping-blood pressure (BP) obstructive sleep apnea (OSA), and no study has assessed BP-dipping during rapid eye movement (REM) and non-REM sleep in OSA patients.
Ahmed S. BaHammam   +5 more
doaj   +1 more source

Nitric Oxide Synthase Neurons in the Preoptic Hypothalamus Are NREM and REM Sleep-Active and Lower Body Temperature

open access: yesFrontiers in Neuroscience, 2021
When mice are exposed to external warmth, nitric oxide synthase (NOS1) neurons in the median and medial preoptic (MnPO/MPO) hypothalamus induce sleep and concomitant body cooling. However, how these neurons regulate baseline sleep and body temperature is
Edward C. Harding   +17 more
doaj   +1 more source

Validation of a Walking Wheel Method to Fragment Sleep in Rats [PDF]

open access: yesSleep Medicine Research, 2012
Background and Objective Many attempts have sought to devise an animal model of sleep fragmentation (SF) to understand the clinical effects of sleep loss, but no study has investigated the usefulness of the walking wheel method to interrupt sleep in rats.
Dae Wui Yoon   +4 more
doaj   +1 more source

Changes in dentate gyrus neuronal activity during sleep-wake cycle in mice

open access: yes陆军军医大学学报, 2023
Objective To investigate the difference of dentate gyrus (DG) neuronal activity between wakefulness and sleep state, and the characteristics of DG neuronal activity during hippocampal sharp wave ripple and θ oscillations. Methods Six 3-month-dd male wild-
ZHANG Haibo, YANG Ye, CHEN Hui
doaj   +1 more source

Is sleep captured during a standard daytime EEG sufficient to diagnose Electrical Status Epilepticus in Sleep

open access: yesEpilepsy & Behavior Reports, 2023
Electrical Status epilepticus of sleep (SES) is an EEG pattern where there is significant activation of epileptiform activity in NREM sleep. A spike wave index (SWI) of > 80–85% is often labelled as typical SES.
Snehal Shah   +2 more
doaj   +1 more source

Abnormal Sleep Signals Vulnerability to Chronic Social Defeat Stress

open access: yesFrontiers in Neuroscience, 2021
There is a tight association between mood and sleep as disrupted sleep is a core feature of many mood disorders. The paucity in available animal models for investigating the role of sleep in the etiopathogenesis of depression-like behaviors led us to ...
Basma Radwan   +2 more
doaj   +1 more source

Dihydropyridine calcium blockers do not interfere with non-rapid eye movement sleep

open access: yesFrontiers in Neuroscience, 2022
Non-rapid eye movement (NREM) sleep is tightly homeostatically regulated and essential for survival. In the electroencephalogram (EEG), oscillations in the delta (0.5–4 Hz) range are prominent during NREM sleep. These delta oscillations are, to date, the
GoEun Han   +5 more
doaj   +1 more source

Comparative Perspectives that Challenge Brain Warming as the Primary Function of REM Sleep

open access: yesiScience, 2020
Summary: Rapid eye movement (REM) sleep is a paradoxical state of wake-like brain activity occurring after non-REM (NREM) sleep in mammals and birds.
Gianina Ungurean   +4 more
doaj   +1 more source

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