Consciousness

Delusion

a false idea that seems real.

Addiction

a person's body craves a drug to feel normal.

Biofeedback

a system that provides information about something happening in your body.

Narcotics

addictive depressants that have been used to relieve pain and induce sleep.

Hypnosis

altered state of consciousness during which people respond to suggestions and behave as though they are in a trance.

Intoxication

another work for drunkenness.

Sleep Apnea

breathing interruption that occurs during sleep.

Unconscious

contains information not available to awareness under most circumstances.

Night Terror

disturbing dreams that are similar to, but more severe than, nightmares.

Stimulants

drugs that increase the activity of the central nervous system.

Hallucinogens

drugs that produce hallucinations.

Depressants

drugs that slow the activity of the nervous system.

Biofeedback training

enables people to control bodily functions previously regarded as not subject to conscious control.

Selective Attention

focus on a particular stimulus.

Narcolepsy

rare sleep problem in which people suddenly fall asleep.

Circadian Rhythms

sequence of bodily changes that occurs in humans every 24 hours.

Stimulus

something that causes a response.

REM sleep

stage of sleep during which the eyes move rapidly beneath the lids.

Altered State of Consciousness

state in which a person's sense of self or sense of the world changes.

Amphetamines

stimulants that help people stay awake and reduce appetite.

Posthypnotic Suggestion

technique in which a therapist gives instructions during hypnosis that are to be carried out after the session has ended.

Consciousness

the awareness of things that are both inside and outside ourselves.

Detoxification

the removal of the harmful substance from the body.

Construct

a concept, model, or schematic idea.

Construct

Like intelligence and emotion, consciousness is considered a psychological ________ because it cannot be seen or measured.

REM phase

Most vivid dreams occur in the __________ of sleep.

Preconscious

ideas not in your awareness now but can be recalled or remembered.

Insomnia

inability to sleep.

Nonconscious

level at which many basic biological functions occur, such as breathing.

Sleepwalkers

may roam during stages of deep sleep.

Altered

meditation, biofeedback, and hypnosis are all ways of achieving an ______ state of consciousness.

Meditation

method some people use to try to narrow their consciousness and make the stresses of the outside world fade away.

Neuron

nerve cell.

Hallucination

perception of an object that seems real but is not.

Four Levels of Consciousness

preconscious, unconscious, nonconscious, altered state of consciousness.