Psychology Chapter 4

lucid dream

a person becomes aware of the fact that they are dreaming, and as such, they can control the dream’s content

Sleep deprivation

when you get little to no sleep

hallucinogenics

one of a class of drugs that results in profound alterations in sensory and perceptual experiences, often with vivid hallucinations

Somnambulism

the sleeper engages in relatively complex behaviors ranging from wandering about to driving an automobile

circadian rhythm

biological rhythm that occurs over approximately 24 hours

opiate/opioid

one of a category of drugs that has strong analgesic properties; opiates are produced from the resin of the opium poppy; includes heroin, morphine, methadone, and codeine

stimulant

drug that tends to increase overall levels of neural activity; includes caffeine, nicotine, amphetamines, and cocaine

Sigmund Freud

an Austrian neurologist who was fascinated by patients suffering from “hysteria” and neurosis.

rapid eye movement (REM) sleep

period of sleep characterized by brain waves very similar to those during wakefulness and by darting movements of the eyes under closed eyelids

sleep apnea

sleep disorder defined by episodes during which breathing stops during sleep