Chapter 7 Flashcards
Biological rhythms
Periodical physiological fluctuations
Consciousness
Our awareness of ourselves & our environment.
Circadian Rhythm
Biological clock. Regular body rhythms in a 24 hour period. (Ex: temp. & wakefulness)
REM sleep
Rapid eye movement sleep, a reoccurring sleep stage during which vivid dreams commonly occur.
Alpha Waves
Relatively slow brainwaves of a relaxed awake state.
Sleep
Periodic, natural, reversible loss of consciousness - as distinct from unconsciousness resulting from a coma, general anesthesia or hibernation.
Hallucinations
False sensory experiences
Delta waves
Large, slow brainwaves associated with deep sleep.
Insomnia
Reoccurring problems in falling or staying asleep
Narcolepsy
Sleep disorder - uncontrollable sleep attacks.
Sleep Apnea
Sleep disorder characterized by temp. Cessations of breathing during sleep & repeated momentary awakenings
Night terrors
Sleep disorder - high arousal & an appearance of being terrorized unlike nightmares it occurs during stage 4 sleep. Within 2 or 3 hours.
Dream
A sequence of images, emotions & thoughts passing through a sleeping person’s mind.
Freud’s wish-fulfillment
By fulfilling wishes, a dream provides a psychic safety valve that discharges otherwise unacceptable feelings
Manifest content
According to Freud, the remembered story line of a dream
Latent content
According to Freud, the underlying meaning of a dream. (Believed latent content functions as a safety valve)
Information processing
Dreams help us sort out the day’s events & consolidate our memories.
Physiological function
Regular brain stimulation from REM sleep may help develop & preserve neural pathways