Sleep and Biological Rhythms
... Sleep attack: uncontrollable urge to sleep during the day Cataplexy: REM paralysis occurs, person is still conscious Sleep ...
... Sleep attack: uncontrollable urge to sleep during the day Cataplexy: REM paralysis occurs, person is still conscious Sleep ...
Chapter 7 States of Consciousness II
... brain engages in a lot of random neural activity. Dreams make sense of this activity. 5. Cognitive Development: Some researchers argue that we dream as a part of brain maturation and cognitive development. All dream researchers believe we need REM sleep. When deprived of REM sleep and then allowed t ...
... brain engages in a lot of random neural activity. Dreams make sense of this activity. 5. Cognitive Development: Some researchers argue that we dream as a part of brain maturation and cognitive development. All dream researchers believe we need REM sleep. When deprived of REM sleep and then allowed t ...
James Robertson
... Loss of Orexin Neurons implicated in: Narcolepsy Excessive daytime sleepiness Sleep Attacks REM Sleep Disorder ...
... Loss of Orexin Neurons implicated in: Narcolepsy Excessive daytime sleepiness Sleep Attacks REM Sleep Disorder ...
Sleep Mar 19 2013x - Lakehead University
... timed bright light exposure prior to travel was able to shift circadian rhythms in the desired direction but would require high motivation and strict compliance with the prescribed light-dark schedule if prescribed clinically. One trial with artificial light exposure upon arrival produced equivocal ...
... timed bright light exposure prior to travel was able to shift circadian rhythms in the desired direction but would require high motivation and strict compliance with the prescribed light-dark schedule if prescribed clinically. One trial with artificial light exposure upon arrival produced equivocal ...
Consciousness & Its Variants
... brain have adapted to the drug • Tolerance – a state of needing more of the drug in question in order to achieve the original effect of the drug • Withdrawal symptoms – unpleasant physical reactions to the lack of a drug, along with intense craving for the drug – Drug rebound effect – withdrawal sym ...
... brain have adapted to the drug • Tolerance – a state of needing more of the drug in question in order to achieve the original effect of the drug • Withdrawal symptoms – unpleasant physical reactions to the lack of a drug, along with intense craving for the drug – Drug rebound effect – withdrawal sym ...
Biological Rhythms
... functions could be recorded; he had a telephone link to the outside world, and was monitored by video camera. Siffre had a fairly erratic sleep-wake pattern at first, but it settled down to a pattern that averaged just over 25 hours, instead of 24 hours. We do have an internal mechanism that regulat ...
... functions could be recorded; he had a telephone link to the outside world, and was monitored by video camera. Siffre had a fairly erratic sleep-wake pattern at first, but it settled down to a pattern that averaged just over 25 hours, instead of 24 hours. We do have an internal mechanism that regulat ...
Biological Rhythms
... functions could be recorded; he had a telephone link to the outside world, and was monitored by video camera. Siffre had a fairly erratic sleep-wake pattern at first, but it settled down to a pattern that averaged just over 25 hours, instead of 24 hours. We do have an internal mechanism that regulat ...
... functions could be recorded; he had a telephone link to the outside world, and was monitored by video camera. Siffre had a fairly erratic sleep-wake pattern at first, but it settled down to a pattern that averaged just over 25 hours, instead of 24 hours. We do have an internal mechanism that regulat ...
SLEEP AND EEG
... this adenosine for replenishing its limited energy stores. Caffeine blocks adenosine receptors in the brain, therefore causes wakefulness. ...
... this adenosine for replenishing its limited energy stores. Caffeine blocks adenosine receptors in the brain, therefore causes wakefulness. ...
Cholinergic Modulation of Arousal in the Pedunculopontine (PPN
... (RAS), which is active during waking and REM sleep. The PPN has ascending projections to the intralaminar thalamus, especially the parafascicular (Pf) nucleus, and descending projections to SubCoeruleus (SubC) nucleus. We have found evidence for the presence of gap junctions in the Pf, PPN and SubC. ...
... (RAS), which is active during waking and REM sleep. The PPN has ascending projections to the intralaminar thalamus, especially the parafascicular (Pf) nucleus, and descending projections to SubCoeruleus (SubC) nucleus. We have found evidence for the presence of gap junctions in the Pf, PPN and SubC. ...
Sleep Physiology
... The second stage of sleep generally occurs after 10 or 15 minutes if the person is in stage 1. Stage 2 is marked by the occurrence of Sleep spindles and K-Complexes. Sleep spindles are short bursts of waves of 12-14Hz that occurs 2 to 5 times per minute. The Sleep spindles show the activity through ...
... The second stage of sleep generally occurs after 10 or 15 minutes if the person is in stage 1. Stage 2 is marked by the occurrence of Sleep spindles and K-Complexes. Sleep spindles are short bursts of waves of 12-14Hz that occurs 2 to 5 times per minute. The Sleep spindles show the activity through ...
Unit 2, the Brain
... predators loomed about kept our ancestors out of harm’s way. 2. Sleep Helps us Recover: Sleep helps restore and repair brain tissue. Helps maintain mood and emotion 3. Sleep Helps us Remember: Sleep restores and rebuilds our fading memories. 4. Sleep may play a role in the growth process: During sle ...
... predators loomed about kept our ancestors out of harm’s way. 2. Sleep Helps us Recover: Sleep helps restore and repair brain tissue. Helps maintain mood and emotion 3. Sleep Helps us Remember: Sleep restores and rebuilds our fading memories. 4. Sleep may play a role in the growth process: During sle ...
Reticular formation,sleep and wakefulness
... • It was later proved that sleep is caused by an active inhibitory process, once that there seems to be a center located below the midpontile level of the brain stem that is required to cause sleep by inhibiting other parts of the brain; • ONTOGENIC HYPOTHESIS OF REM SLEEP says that the activity occ ...
... • It was later proved that sleep is caused by an active inhibitory process, once that there seems to be a center located below the midpontile level of the brain stem that is required to cause sleep by inhibiting other parts of the brain; • ONTOGENIC HYPOTHESIS OF REM SLEEP says that the activity occ ...
Researchers inch closer to causes, cures for insomnia, narcolepsy
... People lacking orexin-producing neurons fall asleep uncontrollably. In extreme forms of narcolepsy, this happens every one to three hours. Narco leptic attacks can also be accompanied by a loss of muscle tone, called cataplexy. Severe cataplexy can leave the entire body as limp as a rag doll. ...
... People lacking orexin-producing neurons fall asleep uncontrollably. In extreme forms of narcolepsy, this happens every one to three hours. Narco leptic attacks can also be accompanied by a loss of muscle tone, called cataplexy. Severe cataplexy can leave the entire body as limp as a rag doll. ...
States of consciousness
... memory- cortex has numerous number of interconnections and theory says memory info is encode by these networks – when an aspect of a network is triggered by a ...
... memory- cortex has numerous number of interconnections and theory says memory info is encode by these networks – when an aspect of a network is triggered by a ...
States of Consciuosnes
... (such as a religious statue, or one's breath, or a mantra) a mental "opening up" to the divine, invoking the guidance of a higher power attempting to clear the mind of discursive or conceptual thought reasoned analysis of religious teachings ...
... (such as a religious statue, or one's breath, or a mantra) a mental "opening up" to the divine, invoking the guidance of a higher power attempting to clear the mind of discursive or conceptual thought reasoned analysis of religious teachings ...
2 - New Page 1
... • More time spent in Stage 4 and REM • Less time spent in Stages 1 and 2 • Rats die in 2-3 weeks if sleep deprived, 4-6 weeks if REM deprived • Deep, Stage 3-4, slow-wave (delta) sleep may be needed for recovery from oxidative stress • High metabolism during awake activity produces overabundance of ...
... • More time spent in Stage 4 and REM • Less time spent in Stages 1 and 2 • Rats die in 2-3 weeks if sleep deprived, 4-6 weeks if REM deprived • Deep, Stage 3-4, slow-wave (delta) sleep may be needed for recovery from oxidative stress • High metabolism during awake activity produces overabundance of ...
Supplementary Figure Legends - Word file (28 KB )
... MBs, sleep-promoting neurons (e.g. 201Y) are normally most active at night, and wake promoting/sleep-inhibiting neurons (e.g. c309/MBSwitch) are normally most active during the day (diurnal influences are indicated by upward and downward deflections in sinusoids). Antagonistic signals from these two ...
... MBs, sleep-promoting neurons (e.g. 201Y) are normally most active at night, and wake promoting/sleep-inhibiting neurons (e.g. c309/MBSwitch) are normally most active during the day (diurnal influences are indicated by upward and downward deflections in sinusoids). Antagonistic signals from these two ...
PSYCHOLOGY (8th Edition) David Myers
... releases growth hormone. Older people release less of this hormone and sleep less ...
... releases growth hormone. Older people release less of this hormone and sleep less ...
PSYC550 Sleep and Sex
... cataplexy, sleep paralysis, and hypnagogic hallucinations. • sleep attack – A symptom of narcolepsy; an irresistible urge to sleep during the day, after which the person awakens feeling refreshed. ...
... cataplexy, sleep paralysis, and hypnagogic hallucinations. • sleep attack – A symptom of narcolepsy; an irresistible urge to sleep during the day, after which the person awakens feeling refreshed. ...
Physiology 59 [5-12
... Sleep = unconsciousness from which can be aroused by sensory or other stimuli Coma = unconsciousness from which cannot be aroused Two types of sleep: o Slow-wave sleep = brain waves are strong, low frequency Most sleep; deep, restful state in first hour after being awake for long Decrease in per ...
... Sleep = unconsciousness from which can be aroused by sensory or other stimuli Coma = unconsciousness from which cannot be aroused Two types of sleep: o Slow-wave sleep = brain waves are strong, low frequency Most sleep; deep, restful state in first hour after being awake for long Decrease in per ...
NEUROPHYSIOLOGY OF SLEEP By Dr. Mohammad
... • The entrainment of biological processes to the light–dark cycle is regulated by the SCN. • The diurnal change in melatonin secretion from serotonin in the pineal gland functions as a timing signal to coordinate events with the light– dark cycle, including the sleep–wake cycle. ...
... • The entrainment of biological processes to the light–dark cycle is regulated by the SCN. • The diurnal change in melatonin secretion from serotonin in the pineal gland functions as a timing signal to coordinate events with the light– dark cycle, including the sleep–wake cycle. ...
bs10
... --the diagnostic and statistical manual of mental disorders, 4th edition (dsm IV) classifies disorders in two major categories Dyssomnias are characterised by problems in the timing , quality, or amount of sleep .they include insomnia, hypersomnia, narcolepsy breathing related sleep disorder (sleep ...
... --the diagnostic and statistical manual of mental disorders, 4th edition (dsm IV) classifies disorders in two major categories Dyssomnias are characterised by problems in the timing , quality, or amount of sleep .they include insomnia, hypersomnia, narcolepsy breathing related sleep disorder (sleep ...
Infant Sleep: A Precursor to Adult Sleep?
... performer’s mistakes in note and pitch until she masters the tune. It’s thought that birdsong serves multiple purposes—staking a territorial claim, for example, and attracting a mate—though precisely how the song relates to fitness is still an open question. Whether inducing the type of exploratory ...
... performer’s mistakes in note and pitch until she masters the tune. It’s thought that birdsong serves multiple purposes—staking a territorial claim, for example, and attracting a mate—though precisely how the song relates to fitness is still an open question. Whether inducing the type of exploratory ...
Delayed sleep phase disorder
Delayed sleep-phase disorder (DSPD), also known as delayed sleep-phase syndrome (DSPS) or delayed sleep-phase type (DSPT), and in the 2014 revision of the International Classification of Sleep Disorders (ISCD-3), delayed sleep-wake phase disorder, is a dysregulation of a person's circadian rhythm (biological clock), compared to the general population and relative to societal norms. The disorder affects the timing of sleep, peak period of alertness, the core body temperature rhythm, hormonal and other daily cycles. People with DSPD generally fall asleep some hours after midnight and have difficulty waking up in the morning. They probably have a circadian period significantly longer than 24 hours.Affected people often report that while they do not get to sleep until the early morning, they do fall asleep around the same time every day. Unless they have another sleep disorder such as sleep apnea in addition to DSPD, patients can sleep well and have a normal need for sleep. However, they find it very difficult to wake up in time for a typical school or work day. If they are allowed to follow their own schedules, e.g. sleeping from 3:00 a.m. to 12:00 noon, their sleep is improved and they may not experience excessive daytime sleepiness. Attempting to force oneself onto daytime society's schedule with DSPD has been compared to constantly living with jet lag; DSPD has, in fact, been referred to as ""social jet lag"".The syndrome usually develops in early childhood or adolescence. An adolescent version may disappear in late adolescence or early adulthood; otherwise DSPD is a lifelong condition. Depending on the severity, the symptoms can be managed to a greater or lesser degree, but there is no known cure. Prevalence among adults, equally distributed among women and men, is approximately 0.15%, or 3 in 2,000. Prevalence among adolescents is as much as 7–16%.DSPD is also genetically linked to ADHD by findings of polymorphism in genes in common between those apparently involved in ADHD and those involved in the circadian rhythm and a high proportion of DSPD among those with ADHD.DSPD was first formally described in 1981 by Elliot D. Weitzman and others at Montefiore Medical Center. It is responsible for 7–10% of patient complaints of chronic insomnia. However, since many doctors are unfamiliar with the condition, it often goes untreated or is treated inappropriately; DSPD is often misdiagnosed as primary insomnia or as a psychiatric condition. DSPD can be treated or helped in some cases by careful daily sleep practices, light therapy, dark therapy, and medications such as melatonin and modafinil (Provigil); the former is a natural neurohormone responsible partly and in tiny amounts for the human body clock. At its most severe and inflexible, DSPD is a disability. A chief difficulty of treating DSPD is in maintaining an earlier schedule after it has been established, as the patient's body has a strong tendency to reset the sleeping schedule to its intrinsic late times. People with DSPD may improve their quality of life by choosing careers that allow late sleeping times, rather than forcing themselves to follow a conventional 9-to-5 work schedule.