sleep psych test Flashcards
what is consciousness?
awareness of yourselves and environment
what is a pseudoscientific claim?
any assertion that appears scientific but is not based on science
what are biological rhythms?
periodic physiological fluctuations
what are circadian rhythms?
biological rhythms (for example, of temperature and wakefulness) that occur approximately every 24 hours
what are ultradian rhythms?
biological rhythms that occur more than once each day
what are infradian rhythms?
biological rhythms that occur once a month or once a season
what is melatonin?
hormone that helps regulate daily biological rhythms
what is an electroencephalogram?
machine that amplifies and records waves of electrical activity as they sweep across the brain’s surface; electrodes placed on the scalp measure these waves
what is rapid eye movement sleep?
recurring sleep stage during which vivid dreams commonly occu
what is insomnia?
recurring problems in falling asleep or staying asleep
what is sleep apnea?
sleep disorder characterized by temporary cessations of breathing during sleep and consequent momentary reawakenings
what is narcolepsy?
sleep disorder characterized by uncontrollable sleep attacks; the sufferer may lapse directly into REM sleep, often at inopportune times
what is somnambulism?
sleepwalking, which usually starts in the deeper stages of NREM sleep; the sleepwalker can walk and talk and is able to see but rarely has any memory of the event
what are night terrors?
sleep-related problem characterized by high arousal and an appearance of being terrified; unlike nightmares, they occur during NREM 3 sleep, occur within 2 or 3 hours of falling asleep, and are seldom remembered
how long is NREM sleep stage one?
rarely lasts longer than five minutes
