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Do sleep abnormalities and misaligned sleep/circadian rhythm patterns represent early clinical characteristics for developing psychosis in high risk populations?
(Elsevier B.V., 2013-12-01)
Sleep architecture changes, such as slow-wave sleep (SWS) percentage variations and reductions in latency and density of rapid eye movement (REM), are found in most patients with schizophrenia and are considered to be an ...
Effects of Handling and Environment on Preterm Newborns Sleeping in Incubators
(Elsevier B.V., 2017-03-01)
Objective: To describe the total sleep time, stages of sleep, and wakefulness of preterm newborns and correlate them to levels of sound pressure, light, temperature, relative air humidity, and handling inside incubators. ...
Acoustic arousal responses in children with obstructive sleep apnea
(Wiley-Blackwell, 2005-10-01)
Our objectives were to study the arousal responses to nonrespiratory (acoustic) stimuli in children with obstructive sleep apnea syndrome (OSAS). the acoustic arousal response was studied in children with OSAS due to ...
Can valerian improve the sleep of insomniacs after benzodiazepine withdrawal?
(Elsevier B.V., 2002-04-01)
Purpose: the authors studied the sleep of patients with insomnia who complained of poor sleep despite chronic use of benzodiazepines (BZDs). the sample consisted of 19 patients (mean age 43.3 +/- 10.6 years) with primary ...
Nonlinear analysis of heart rate variability within independent frequency components during the sleep–wake cycle
(Elsevier Science, 2010-04)
Heart rate variability (HRV) is a complex signal that results from the contribution of different sources of oscillation related to the autonomic nervous system activity. Although linear analysis of HRV has been applied to ...
On-line analysis of biosignals for the automation of total and specific sleep deprivation in the rat
(SOC BIOLGIA CHILE, 2008)
A computer-based system that automates sleep studies, including sleep deprivation paradigms, is described.
The system allows for total or REM-specific sleep deprivation and is based on a reliable, fast-responding, ...
The effect of combined therapy (ultrasound and interferential current) on pain and sleep in fibromyalgia
(Elsevier B.V., 2003-08-01)
Multidisciplinary treatment has proven to be the best therapeutic option to fibromyalgia (FM) and physiotherapy has an important role in this approach. Considering the controversial results of electrotherapy in this ...
Probabilistic cardiac and respiratory based classification of sleep and apneic events in subjects with sleep apnea
Current clinical standards to assess sleep and its disorders lack either accuracy or user-friendliness. They are therefore difficult to use in cost-effective population-wide screening or long-term objective follow-up after ...
Increasing trends of sleep complaints in the city of Sao Paulo, Brazil
(ELSEVIER SCIENCE BV, 2010)
Objective: The aim of this study was to compare the prevalence of sleep habits and complaints and to estimate the secular trends through three population-based surveys carried out in 1987, 1995, and 2007 in the general ...
Gender and age differences in polysomnography findings and sleep complaints of patients referred to a sleep laboratory
(Associação Brasileira de Divulgação Científica, 2008-12-01)
Our objective was to examine the effet of gender on the sleep pattern of patients referred to a sleep laboratory. The data (questionnaires and polysomnographic recordings) were collected from a total of 2365 patients (1550 ...