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  • patients
  • Patients may take self-protection measures by tethering themselves to bed, using pillow barricades or sleeping in an empty room on a mattress. (riversidehealthcare.org)
  • In consideration of a subset of patients for whom this is the only manifestation, we modified RBD1Q into a Chinese version of RBD1Q (RBD1Q-C) with the inclusion of sleep screaming and sleep yelling in order to obtain a higher sensitivity for the screening purpose. (springer.com)
  • consists
  • Then we included sleep shouting or yelling into the question, named as Chinese version of RBD1Q (RBD1Q-C). RBD1Q-C consists of a single question, answered "yes" or "no," as follows "Did you have the following conditions (or have you ever been told by your husband or wife) that you shout, yell, move your arms or legs in response to your dream contents, even fallen off your bed? (springer.com)
  • rats
  • This study was performed to characterize the effect of stroke on sleep architecture of rats using continuous electroencephalography (EEG) and activity monitoring. (ovid.com)
  • In contrast to rats exposed to sham surgery which had slightly increased total sleep, rats undergoing stroke experienced decreased total sleep. (ovid.com)
  • We conclude that after stroke in this experimental model, REM sleep of rats is specifically and profoundly suppressed. (ovid.com)
  • Stroke in rats caused dramatic reduction in REM. (ovid.com)
  • It should be noted that in contrast to the findings in humans, deprivation of rats of REM or nonREM sleep by the disk over water method can be lethal 6 . (pubmedcentralcanada.ca)
  • This team's experience invalidates this hypothesis: despite the absence of activity in this neuron circuit, the rats still experience this stage of sleep. (neurosciencenews.com)
  • They do know that newborns dream and that depriving rats of REM sleep greatly shortens their lives. (verywellmind.com)
  • Cai also found that the REM sleepers scored higher in the afternoon tests if they were given RATs that they had seen before - if they were given new sets of words, their scores were the same as the other two groups. (nationalgeographic.com)
  • findings
  • I produced an explanation of sleep and an explanation of epilepsy that is supported by the findings of Bazil, et al. (bio.net)
  • Findings from observational studies have been confirmed by investigations involving objective sleep measures, such as wrist actigraphy and polysomnography. (medpagetoday.com)
  • The assumption that animals have dream-like experience as we do, has to be tempered by more recent findings that human dreaming can be abolished by relatively small cortical lesions that do not interfere with other aspects of REM sleep 17 . (pubmedcentralcanada.ca)
  • 0.01
  • Comparison of polysomnography data and BMI z score demonstrated significant associations for total sleep time (β= -0.174, P =0.02), sleep efficiency (β= -0.027, P =0.01), and REM density (β= -0.256, P =0.02). (medpagetoday.com)
  • high-amplitude
  • Active wake (with low voltage and fast EEG frequency, concomitant a high EMG activity and EKG is fast), (B) non-rapid eye movement sleep (NREMS-high amplitude and slow wave EEG, activity in EMG is low and EKG is low), (C) rapid eye movement sleep (REMS-theta 6-8 Hz activity is present in this medial EEG, EMG is almost quiet, and EKG shows an intermediate activity). (frontiersin.org)
  • rapid eye move
  • Overweight and obese children also had significantly less rapid eye movement during the REM sleep they did get. (medpagetoday.com)
  • Seizures are rare while dreaming in rapid eye movement (REM) sleep. (mitacs.ca)
  • This study, which was recently published in the journal Current Biology , shows that rapid eye movement (REM) sleep can lower emotional stress levels related to past events. (sleepbetter.org)
  • Birds exhibit two types of sleep that are in many respects similar to mammalian rapid eye movement (REM) and non-REM (NREM) sleep. (frontiersin.org)
  • Hypothalamic peptides (corticotropin-releasing hormone, prolactin, and the CLIP/ACTH 18-39 ) play an important role in the expression of stress-induced sleep effects, essentially by modulating rapid eye movement sleep, which has been claimed to affect the organism resilience to the deleterious effects of stress. (frontiersin.org)
  • Polygraph tracings of REM (Rapid Eye Movement) period. (sciencephoto.com)
  • Dreams happen during the rapid eye movement (REM) stage of sleep . (verywellmind.com)
  • Previous theoretical accounts have proposed a differential role of slow-wave sleep (SWS), rapid-eye-movement (REM) sleep, and stage N2 sleep for different types of memories. (springer.com)
  • Wagner U, Gais S, Born J. Emotional memory formation is enhanced across sleep intervals with high amounts of rapid eye movement sleep. (springer.com)
  • She found that our brains are better at integrating disparate pieces of information after a short bout of REM (rapid eye movement) sleep - a deep, dream-rich slumber that involves a rapid fluttering of the eyes. (nationalgeographic.com)
  • suppression
  • Further experiments using this experimental model should be performed to investigate the mechanisms and consequences of REM suppression after stroke. (ovid.com)
  • Humans taking selective serotonin reuptake inhibitors, serotonin-norepinephrine reuptake inhibitors, monoamine oxidase inhibitors and antidepressants have a massive suppression of REM sleep 3 yet they do not go insane and do not have any apparent impairment of memory - indeed may have some small improvements of memory 4 . (pubmedcentralcanada.ca)
  • occurrence
  • Sleep homeostasis depends on the length and quality (occurrence of stressful events, for instance) of the preceding waking time. (frontiersin.org)
  • reduction
  • A one-hour reduction in REM sleep tripled the odds for overweight and obesity, Xianchen Liu, M.D., Ph.D., of the University of Pittsburgh, and colleagues, reported in the August issue of Archives of General Psychiatry . (medpagetoday.com)
  • The decrease in total sleep after stroke was the result of dramatic reduction in the amount of REM sleep after ischemia. (ovid.com)
  • Reduction in REM was due to decreased REM bouts. (ovid.com)
  • Even longterm usage of these drugs, with concomitant reduction or elimination of REM sleep does not generally have deleterious effects on health. (pubmedcentralcanada.ca)
  • alteration
  • The temporal appearance of REM during the night appears to be affected in part by the intense exercise associated with race competition, and urinary catecholamines are markers that are correlated with this alteration in REM appearance. (nih.gov)
  • night's
  • REM sleep is a phase of the sleep cycle that normally occurs every 1.5 to 2 hours during an ordinary night's sleep. (medicalnewstoday.com)
  • Read about the latest sleep research and get advice to help you learn how to get the best night's rest possible. (sleepbetter.org)
  • Take our all-new Zzzz Score, an 8-question survey that assesses your sleep habits and provides personalized tips and information on how to get a better night's sleep. (sleepbetter.org)
  • We manufacture a wide variety of products, all designed to help you get a great night's sleep. (sleepbetter.org)
  • sleepers
  • She found that the REM-sleepers weren't any more likely than the others to remember the answers to the morning analogies, and in fact all three groups remembered about 90% of them. (nationalgeographic.com)
  • hypothesis
  • The hypothesis was that endogenous levels of aminergic neurotransmitters influence sleep architecture. (nih.gov)
  • But in an impressive test of this hypothesis, non-dream reporters were awakened from REM sleep at all times of the night and many still reported no dreams 18 . (pubmedcentralcanada.ca)
  • For example the dual process hypothesis proposes that SWS is beneficial for declarative memories, whereas REM sleep is important for consolidation of non-declarative, procedural and emotional memories. (springer.com)
  • infants
  • This connection seems strong in some respects due to the fact that infants and toddlers experience much more REM sleep than adults. (howstuffworks.com)
  • Furthermore, human infants have huge amounts of REM sleep, yet it is inconceivable that they could have dream experiences that are similar to adult dreams. (pubmedcentralcanada.ca)
  • Infants spend almost 50 percent of their sleep time in REM sleep (compared to 20 percent for adults), which may be explained by the tremendous amount of learning in infancy. (verywellmind.com)
  • birds
  • why do all land mammals (but not necessarily marine mammals 1 , 7 ) and many, perhaps all birds have REM sleep 8 if it uses so much energy and can apparently be dispensed with without obvious negative consequences? (pubmedcentralcanada.ca)
  • Electrophysiological evidence of NREM sleep occurring more deeply in one hemisphere, or only in one hemisphere - the latter being a phenomenon most pronounced in dolphins - was actually first described in birds. (frontiersin.org)
  • Such asymmetric or unihemispheric NREM sleep occurs with one eye open, enabling birds to visually monitor their environment for predators. (frontiersin.org)
  • Frigatebirds primarily engage in this form of sleep in flight, perhaps to avoid collisions with other birds. (frontiersin.org)
  • waves
  • Furthermore, the intensity and temporo-spatial distribution of NREM sleep-related slow waves varies across layers of the avian hyperpallium - a primary visual area - with the slow waves occurring first in, and propagating through and outward from, thalamic input layers. (frontiersin.org)
  • Finally, although mice show slow waves in thalamic input layers of primary sensory cortices during REM sleep, this is not the case in the hyperpallium of pigeons, suggesting that this phenomenon is not a universal feature of REM sleep. (frontiersin.org)
  • suggests
  • During the day, my sleep mechanism suggests that the larger production of DHEA is involved in inhibiting synthesis of MLT from the pineal gland (where MLT is made). (bio.net)
  • That strongly suggests that in this case, the benefits of REM sleep lay not in boosting memory or general mental agility, but in specifically allowing the volunteers to create associations between existing ideas. (nationalgeographic.com)
  • She suggests that REM sleep (aided by falling levels of neural signalling molecules like norepinephrine and acetylcholine) helps us to incorporate new information into existing experiences. (nationalgeographic.com)
  • cortical
  • Furthermore, the primitive mammal platypus, the animal with the greatest amount of REM sleep, does not have cortical activation during most of this state 20 , again casting doubt on the often assumed linkage between REM and higher cognitive processes including dreaming. (pubmedcentralcanada.ca)
  • asleep
  • In this first stage of non-REM sleep, a person is making the transition from being awake to falling asleep. (livescience.com)
  • A person can be easily awakened from N1 sleep, and that individual may not think he or she had been asleep, Quan said. (livescience.com)
  • Memories
  • However, recent evidence for the benefit of REM sleep for non-declarative memories is rather scarce. (springer.com)
  • In contrast, several recent studies have related consolidation of procedural memories (and some also emotional memories) to SWS (or non-REM sleep)-dependent consolidation processes. (springer.com)
  • mechanisms
  • Further studies are needed to investigate possible mechanisms underpinning the association between diminished REM sleep and endocrine and metabolic changes that may contribute to obesity. (medpagetoday.com)
  • If you are lucky, the sedation allows your natural sleep mechanisms to take over. (scitechdaily.com)
  • Some of the mechanisms involved in the generation and regulation of sleep and the main peptides/hypothalamic hormones involved in these responses will be discussed in this review. (frontiersin.org)
  • daytime
  • 2000;57:363-368 Results: 'Daytime seizures reduced REM from 18% 1% to 12% 2% (P = .003). (bio.net)
  • theta
  • The EEG of the ischemic hemisphere demonstrated diminished theta power specific to REM in excess of the slowing seen over the contralateral hemisphere. (ovid.com)
  • Cantero JL, Atienza M, Stickgold R, Kahana MJ, Madsen JR, Kocsis B. Sleep-dependent theta oscillations in the human hippocampus and neocortex. (springer.com)
  • causes
  • That causes the body to be immobile during REM sleep. (verywellmind.com)
  • Associate Professor Akihiro YAMANAKA says"Narcolepsy, a sickness of abnormal sleep causes sudden sleep attack and muscle weakness, cataplexy, because the orexin neuron disappears for the long term. (medicalxpress.com)
  • humans
  • Studies have also have suggested that the metabolic rate in humans may vary by sleep stage, the authors continued. (medpagetoday.com)
  • The technique helps to clarify the mechanism by which REM sleep is controlled, and is a step toward understanding how to design natural sleep in humans, Van Dort says. (scitechdaily.com)
  • Sleep states and memory processes in humans: procedural versus declarative memory systems. (springer.com)
  • novel
  • In 2004, Ullrich Wagner also studied the link between slumber and creativity , and showed that people are twice as likely to discover a novel solution to a mathematical problem after sleeping on it for a night. (nationalgeographic.com)