Sleep norms vary between individuals, being affected by personal, communal, and socioeconomic factors. Individuals with sleep time which deviate from the population norm are at risks of adverse mental, cardiovascular, and metabolic health. Sleep-related issues are common agenda for consultation in primary care. This study aimed to determine the sleep time, pattern, and behavior of multiethnic A...

Polygraphic recording is presented of the sleep pattern in a young male who developed nystagmus and oscillopsia associated with a remittent CNS demyelinating disease. The vestibular nystagmus observed during wakefulness disappeared during all stages of sleep, including rapid eye movement sleep (REM). Since vestibular nystagmus experimentally induced in wakefulness is also absent during all phas...

Study design: Experimental, controlled trial. Objectives: The purpose of this study was to evaluate over a 15-day period alterations in sleep pattern of rats after spinal cord injury (SCI). Setting: Federal University of São Paulo, Department of Psychobiology. Methods: In total, 20 male Wistar rats were used. The rats were divided in two groups: SHAM and SCI. The rats were submitted to the foll...

background: previous studies on the relationship between sleep patterns and obesity in the elderly are limited and have conflicting results. moreover, few studies have measured sleep patterns objectively. in this study, we investigated objective sleep patterns and their relationship with obesity in the elderly in tehran, iran. methods: in this cross-sectional study, 88 elderly (≥60 years old) w...

Skeletal muscle tone is modulated in a stereotypical pattern across the sleep-wake cycle. Abnormalities in this modulation contribute to most of the major sleep disorders; therefore, characterizing the neurochemical substrate responsible for transmitting a sleep-wake drive to somatic motoneurons needs to be determined. Glutamate is an excitatory neurotransmitter that modulates motoneuron excita...

It is well known that sleep restriction or impairment results in an increase of the risk of get an infectious disease. As well, once a subject is sick due to an infectious disease, his sleep pattern changes completely. For a number of years these facts have been interpreted as the result of the alteration or lost of the main sleep function, the restoration of the defense system. Nevertheless, t...

In the 19th century, Cheyne 1 and Stokes2 described a pattern of periodic breathing in patients with heart failure, but over the past few decades, particular attention has been given to the occurrence of periodic breathing during sleep.3,4 Central sleep apnea, also referred to as CheyneStokes respiration, is an abnormal periodic breathing pattern in which central apneas and hypopneas alternate ...

Sleep patterns change with aging, independent of other factors, and include advanced sleep timing, shortened nocturnal sleep duration, increased frequency of daytime naps, increased number of nocturnal awakenings and time spent awake during the night, and decreased slow wave sleep. Most of these changes seem to occur between young and middle adulthood; sleep parameters remain largely unchanged ...

K-complex is an underlying pattern in the sleep EEG. Due to the role of sleep studies inneurophysiologic and cognitive disorders diagnosis, reliable methods for analysis and detection of this patternare of great importance. In our previous work, Synchrosqueezing Transform (SST) was proposed for analysisof this pattern. SST is an EMD-like tool, which benefits from wavelet transform and reallocat...

BACKGROUND In children, attention-deficit/hyperactivity disorder (ADHD), tic disorder (TD), and their coexistence (ADHD + TD comorbidity) are very common and clinically important. Associated sleep patterns and their clinical role are still insufficiently investigated. This study aimed at characterizing these sleep patterns in children with ADHD, TD, and ADHD + TD comorbidity and determining whe...