PSY1102 Ch3

Topics: Sleep, Electroencephalography, Dream Pages: 5 (808 words) Published: September 24, 2014
Chapter 3

A disorder characterized by sudden and uncontrollable attacks of deep sleep, often brief, sometimes accompanied by paralysis and hallucinations Hypnagogic
During Stage 1 sleep you may experience hypnagogic sensations-such as fantastic images (like hallucinations); feel like you are falling or floating weightlessly state between awake & falling asleep

People who claim to have been abducted by space aliens—often shortly after going to bed—commonly recall being floated off their beds. It is most likely that they have incorporated these sensations into their memories. Selective attention

A teenager texting while crossing the street is not likely to notice a car rounding the corner and about to cross her path. This best illustrates the impact of selective attention The focusing of conscious awareness on a particular stimulus Circadian rhythm

the biological clock; regular bodily rhythms (for example, of temperature and wakefulness) that occur on a 24-hour cycle. Sleep Apnea
a sleep disorder characterized by temporary cessations of breathing during sleep and repeated momentary awakenings. Most commonly associated with obesity
rapid eye movement sleep, a recurring sleep stage during which vivid dreams commonly occur. Also known as paradoxical sleep, because the muscles are relaxed (except for minor twitches) but other body systems are active. A recurring sleep stage during which most vivid dreams commonly occur Alcohol consumption disrupts the processing of recent experiences into long-term memory by decreasing REM sleep REM rebound

the tendency for REM sleep to increase following REM sleep deprivation (created by repeated awakenings during REM sleep). Change blindness
Failing to notice changes in the environment
NREM stages

Activity increases from stages 1-3
NREM-3: Sleepwalking is most likely to be associated with this stage ghrelin
Sleep deprivation increases levels of this hunger-arousing hormone Orexin
Narcolepsy is associated with a relative absence of a hypothalamic neural center that produces this hormone Leptin
Leptin, a hormone secreted exclusively by adipose cells in response to an increase in body fat mass, is an important component in the regulation of long-term hunger and food intake. Leptin serves as the brain's indicator of the body's total energy stores Freud’s Wish-Fulfilment

theory of dreaming that states that dreams provide a "psychic safety valve"- expressing otherwise unacceptable feelings The distinction between manifest content and latent content is central to this theory of dreams Latent Content

according to Freud, the underlying meaning of a dream (as distinct from its manifest content). Manifest content
according to Freud, the remembered story line of a dream (as distinct from its latent, or hidden, content). Physiological Theory of Dreams
theory of dreaming that states that the regular brain stimulation from REM sleep may help develop and preserve neural pathways Dissociation
a split in consciousness, which allows some thoughts and behaviors to occur simultaneously with others. Has been an explanation for hypnotic pain relief.
Information processing theory of dreams
theory of dreaming that states that dreams help us sort out the day's events and consolidate our memories Near death experience
an altered state of consciousness reported after a close brush with death (such as through cardiac arrest); often similar to drug-induced hallucinations. Hallucinations similar to those that accompany the near-death experience can be produced by oxygen deprivation Neuroadaptation

The brain of a person who uses drugs adapts its chemistry to offset the drug effect. As drug users experience neuroadaptation, they demonstrate signs of tolerance LSD
a powerful hallucinogenic drug; also known as acid (lysergic acid diethylamide). The experience of vivid geometric images and dreamlike scenes is most likely to be triggered by Sleep Spindles
A burst of...
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