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chapter 3 & 4 defintions

chapter 3 & 4 defintions - Psychology...

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Psychology Chapter 4- States of Consciousness *consciousness- a persons awareness of feelings, sensations, and thoughts at  any give moment *daydreaming- form of consciousness involving fantasies, usually spontaneous,  that occur while a person is awake *circadian rhythms- internal biological changes that occur on a daily schedule *jet lag- temporary maladjustment that occurs when a change of time zones  causes biological rhythms to be out of step with local time *polysomnograph- instrument that amplifies and records signals associate with  biological changes taken during night in a sleep laboratory *non-REM (NREM) sleep- sleep stages 1, 2, 3, and 4; NREM sleep consist  primarily of stages 3 and 4 (Deep sleep) early in the night and stage 2 later on *slow wave sleep-deep sleep of NREM Stage 3 and 4, characterized by delta  waves *rapid eye movement (REM) sleep-sleep stage characterized by eye movements,  dreams, high levels of brain activity, and muscle paralysis *REM rebound- an increase in the typical amount of REM sleep following  reduction of REM sleeping owing to sleep deprivation or the use of certain drugs  that reduce REM sleep  *insomnia- complaints of difficult falling asleep, staying asleep, frequent  awakenings, or poor-quality of sleep *hypersomnias- sleep disorders characterized by excessive daytime sleepiness
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*narcolepsy- sleep disorder characterized by excessive daytime sleepiness and  attacks of muscle weakness (cataplexy) induced by emotion, as well as  hypnologic hallucinations, the symptoms are due to the intrusion of REM sleep  into waking time *parasomnias- sleep disorders, other that insomnia and hypersomnias that occur  more frequently in children and often disappear without treatment *sleepwalking- a parasomnia that occurs during Stage 4 of sleep, usually in  children most often consists of sitting up in bed *enuresis- bedwetting, a sleep disorder that occurs primarily in children and is  considered a disorder of arousal that is likely to improve with maturation of the  CNS *sleep terror- partial awakening from stage 4 sleep characterized by loud  screams and extreme psychological arousal *nightmare- frightening dream that usually awakens a sleeper from REM sleep;  occurs most often in children ages 3-6 *sudden infant death syndrome (SIDS)- the unexpected death of an apparently  healthy infant up to age 1 that is not explained by autopsy; medical case  information, or an investigation of the death scene   *dream- a succession of predominantly visual images experienced during sleep *manifest content- according to Freud, the dream as reported by the dreamer
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chapter 3 & 4 defintions - Psychology...

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