Unit 5 Psychology Vocab

Biological rhythms that occur approximately every 24 hours.

Biological rhythms that occur more than once each day.

Biological rhythms that occur once a month or once a season.

A hormone that helps regulate daily biological rhythms

Bursts of brain-wave activity that characterize stage 2 of N-REM sleep.

Stages 3 and 4 of N-REM sleep, characterized by large, slow delta waves; delta sleep is minimal during the last 4 hours of sleep.

The period of sleep in which sleep stages 1 through 4 occur; not characterized by eye movement or vivid dreams.

Rapid eye movement sleep; a reoccuring sleep stage in which vivid dreams commonly occur. Also known as paradoxical sleep because muscles are relaxed but the other body systems are active.

Recurring problems in falling asleep or staying asleep.

Sleepwalking, which usually starts in the deeper stages of N-REM sleep. The sleepwalker can walk and talk and is able to see but rarely has any memory of the event.

A sleep-related problem characterized by high arousal and an appearance of being terrifiedl unlike nightmares, night terrors occur during stage 4 of sleep, within 2 or 3 hours of falling asleep, and are seldom remembered.

The theory that powerful social influences can produce a state of hypnosis.

The theory that during hypnosis our consciousness - our awareness of ourselves and others - splits, so that one aspect of consciousness is not aware of the role the other parts are playing.

The process in which a hypnotist creates a state of hypnosis in a subject, generally by voicing a series of suggestions.

A suggestion, made during a hypnosis session, that the subject will carry out when no longer hypnotized.