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Sleep Regulation in the Rat by Irene Tobler-Kost

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Sleep Regulation in the Rat

Author : Irene Tobler-Kost

Publisher : Uitgever niet vastgesteld

Published : 1980

ISBN-10 :

ISBN-13 :

Number of Pages : 125 Pages

Language : en

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Results Sleep Regulation in the Rat

Development of Circadian Sleep Regulation in the Rat: A Longitudinal - Study objectives: To better understand the development of sleep, we characterized the development of circadian rhythms in sleep and wakefulness in the artificially-reared, isolated rat pup using an experimental design that minimized the effects of maternal separation. Methods: Neonatal rats were reared in constant conditions (dim red light) while electroencephalographic and electromyographic

Coupled Flip-Flop Model for REM Sleep Regulation in the Rat - Coupled flip-flop model for rat sleep-wake regulation. As the above analysis suggests, a single flip-flop with multiple sources of variability and appropriately tuned parameters would be able to generate transition dynamics between states of wake and sleep, or between states of NREM and REM sleep, similar to those observed in the rat. The goal

Endogenous Melatonin is Not Obligatory for the Regulation of the Rat - Our data provide no evidence that endogenous circulating melatonin plays a role in regulating the sleep-wake cycle in rats. However, because cortical theta oscillations are generated in the CA1-3 layer of the hippocampus, neurons known to express melatonin receptors, this suggests that a lack of melatonin following pineal removal influences the function of these neurons and is consistent with

Development of Circadian Sleep Regulation in the Rat: A Longitudinal - These regulatory mechanisms undergo dramatic changes during the course of perinatal development. 1 The homeostatic response to sleep deprivation, for example, is strikingly different in rodents depending on their age. 2-5 In adult rats, sleep deprivation reliably increases non-rapid-eye movement (NREM) sleep electroencephalograph (EEG) delta

Coupled Flip-Flop Model for REM Sleep Regulation in the Rat - Interactions between the wake/sleep and REM-on/REM-off flip-flops are proposed to replicate the behavioral state statistics and probabilities of behavioral state transitions measured from experimental recordings of rat sleep under ad libitum conditions and after 24 h of REM sleep deprivation. Recent experimental studies investigating the neuronal regulation of rapid eye movement (REM) sleep

(PDF) Sleep regulation in rats: Effects of sleep deprivation, light - Sleep states and electroencephalographic (EEG) parameters were determined in unrestrained rats that had been implanted with electrodes under deep pentobarbital sodium anesthesia

Complete sleep and local field potential analysis regarding estrus - Sleep and local field potential (LFP) characteristics were addressed during the reproductive cycle in female rats using long-term (60-70 days) recordings. Changes in homeostatic sleep regulation

Sleep homeostasis in the rat is preserved during chronic sleep ... - PNAS - Sleep is homeostatically regulated in all mammalian and nonmammalian species that have been carefully studied so far: in general, the longer an animal stays awake, the longer and/or deeper it sleeps (1-4).The best characterized marker of sleep pressure in mammals and birds is slow wave activity (SWA), defined as the electroencephalogram (EEG) power between 0.5 and 4 Hz during nonrapid eye

Sleep deprivation in the rat by the disk-over-water method - This pattern indicates that sleep serves a thermoregulatory function in the rat. The sleep deprived rats also show stereotypic ulcerative and hyperkeratotic lesions localized to the tail and plantar surfaces of the paws, and they die within a matter of weeks; the mediation of these changes is unresolved. ... Homeostatic sleep regulation was

Differential modulation of NREM sleep regulation and EEG ... - Nature - During recovery sleep days, rats showed an significantly elevated level of NREM sleep on the first recovery day (R1) while mice's NREM sleep duration was still far below the baseline level (+8.7

Sleep regulation in rats: effects of sleep deprivation, light, and - Sleep states and electroencephalographic (EEG) parameters were determined in unrestrained rats that had been implanted with electrodes under deep pentobarbital sodium anesthesia. Two base-line days with a light-dark cycle (LD) and 2 days under continuous darkness (DD) were followed by 24 h of sleep deprivation (SD) ending in the middle of the

Repeated sleep restriction in rats leads to homeostatic and allostatic - A long-standing model of sleep regulation postulates that sleep is under the control of two fundamental processes, circadian and homeostatic ().The circadian process directs the timing of virtually all 24-h behavioral, physiological, and molecular processes, including sleep and wakefulness ().The sleep homeostatic process regulates the propensity for sleep based on the amount of prior

Sleep-deprivation: Effects on sleep and EEG in the rat - 1. The vigilance states (waking, rapid eye movement (REM) sleep, and non-REM (NREM) sleep), motor activity, food intake and water intake were continuously recorded by telemetry in unrestrained rats. In addition, an amplitude measure and a frequency measure (number of zero-crossings (ZCR) per 10 s) of the telemetered EEG-signal was obtained. The animals were recorded during a control day, then

Sleep homeostasis - Scholarpedia - Alexander Borbély, a Swiss pharmacologist and sleep researcher who began his research by studying sleep regulation in laboratory rats under diverse controlled conditions (Borbély & Neuhaus, 1979) applied the concept of homeostasis to sleep regulation. Sleep homeostasis: regulated balance between sleep and waking. Homeostatic mechanisms

Capsaicin Receptors in Sleep Regulation | SpringerLink - Role of peripheral capsaicin receptors in sleep regulation was studied in rats with selective destruction of peripheral capsaicin receptors [27,28,29]. Peripheral capsaicin receptors are destroyed when relatively high dose of capsaicin (50 mg/kg bw) is subcutaneously administered on post-natal day 2 in neonatal rats. Central receptors remain

Development of Circadian Sleep Regulation in the Rat: A Longitudinal - In a series of earlier studies, we developed and used an artificial rearing system that minimizes the effects of maternal separation on sleep patterns to chronically measure EEG and electromyographically (EMG) defined REM and NREM sleep in neonatal rats. 2, 10, 11 In the presence of a 12:12 light dark cycle, diurnal/nocturnal patterns of sleep

Nesfatin-1/NUCB2 as a potential new element of sleep regulation in rats - Study objectives: Millions suffer from sleep disorders that often accompany severe illnesses such as major depression; a leading psychiatric disorder characterized by appetite and rapid eye movement sleep (REMS) abnormalities. Melanin-concentrating hormone (MCH) and nesfatin-1/NUCB2 (nesfatin) are strongly co - expressed in the hypothalamus and are involved both in food intake regulation and

Complete sleep and local field potential analysis regarding - Sleep and local field potential (LFP) characteristics were addressed during the reproductive cycle in female rats using long-term (60–70 days) recordings. Changes in homeostatic

Repeated sleep restriction in rats leads to homeostatic and - Interestingly, few studies have examined how the sleep–wake system itself responds to repeated sleep restriction. In this study, rats were subjected to a sleep-restriction protocol consisting of 20 h of sleep deprivation (SD) followed by a 4-h sleep opportunity each day for 5 consecutive days

Differential modulation of NREM sleep regulation and EEG topography … - What is the difference between rats and mice’s NREM sleep duration?

Sleep homeostasis in the rat is preserved during chronic - However, recent evidence suggests that during chronic sleep restriction (SR) sleep may be regulated by both allostatic and homeostatic mechanisms. Here, we performed continuous, almost completely artifact-free EEG recordings from frontal, parietal, and occipital cortex in freely moving rats ( n = 11) during and after 5 d of SR

Development of Circadian Sleep Regulation in the Rat: A - Study objectives: To better understand the development of sleep, we characterized the development of circadian rhythms in sleep and wakefulness in the artificially-reared, isolated rat pup using an experimental design that minimized the effects of maternal separation

Development of Circadian Sleep Regulation in the Rat: A - These regulatory mechanisms undergo dramatic changes during the course of perinatal development.1The homeostatic response to sleep deprivation, for example, is strikingly different in rodents depending on their age.2–5In adult rats, sleep deprivation reliably increases non-rapid-eye movement (NREM) sleep electroencephalograph (EEG) delta power, a …

Differential modulation of NREM sleep regulation and EEG - Using different rodent models of CSR, we have shown that when rats are sleep restricted for 5 consecutive days, homeostatic increases in sleep duration and intensity are progressively