Psych Ch 5

the state of transition between wakefulness and sleep, characterized by relatively rapid, low-amplitude brain waves

a sleep deeper than that of stage 1, characterized by a slower, more regular wave pattern, along with momentary interruptions of "sleep spindles"

a sleep characterized by slow brain waves, with greater peaks and valleys in the wave pattern than in stage 2 sleep

the deepest stage of sleep, during which we are least responsive to outside stmulation

sleep occupying 20% of an adults sleeping time, characterized by increased heart rate, blood pressure, and breathing rate; erections; eye movements; experience of dreaming

Sigmund Freud's theory that dreams represent unconscious wishes that dreamers desire to see fulfilled

according to Freud, the "disguised" meanings of dreams, hidden by more obvious subjects

according to Freud, the apparent storyline of dreams

the theory that suggested that dreams permit information that is critical for our daily survival to be reconsidered and reprocessed during sleep

Hobsom's theory that the brain produces random electrical energy during REM sleep that stimulatess memories stored in the brain

biological process that occurs regularly on approx. 24 hr cycle

fantasies that people construct while awake

a trancelike state of heightened susceptibility to the suggestions of others

a learned technique for refocusing attention that brings about an altered state of consciousness

drugs that influence a persons emotions, perceptions, and behavior

drugs that produce biological or psychological dependence in the user so that withdrawal from them leads to a craving for the drug that, in some cases, may be nearly irrresistable

drugs that have an arousal effect on the central nervous system, causing a rise in heart rate, blood pressure, and muscular tension

drugs that slow down the nervous system

drugs that increase relaxation and relieve pain and anxiety

a drug that is capable of producing hallucinations, or changes in the perceptual process