Chapter 7 Sleep & Dreams

Question 0

Electroencephalogram

Answer 0

Records brain wave activity

Question 1

Circadian Rhythm

Answer 1

Consistent pattern of cynical body activities, usually lasting 24 to 25 hours
Determined by an internal biological clock
Can be adjusted by exposure to light

Question 2

REM Sleep

Answer 2

Stage of sleep 
Rapid eye movement
Originally termed paradoxical sleep because it's EEG pattern resembles awake person
20-25% of sleep time
Dreaming

Question 3

Stage 1 Sleep

Answer 3

First stage after falling asleep

Looks like theta waves (3-7cps) on EEG

Question 4

Stage 2 sleep

Answer 4

•stage of NREM sleep that is characterized by bursts of high-amplitude sleep spindles (12-16 cps) in the EEG

Question 5

Stages 3 & 4 Sleep

Answer 5

•stage of NREM sleep that shows high-amplitude delta waves (1-2 cps) in the EEG

Question 6

Conservation Functioning

Answer 6

•theory that states that sleep evolved as a way to save energy at times when there was no need to forage for food, search for mates, or work

Question 7

Restoration Functioning

Answer 7

•theory that states that sleep provides a way to interrupt waking-induced damage to the brain and to undertake repair of brain cells

Question 8

Insomnia

Answer 8

Sleep disorder characterized by the chronic inability to spend enough time in sleep (REM), or to get sufficient sleep

Question 9

Narcolepsy

Answer 9

Sleep disorder characterized by an irresistible compulsion to sleep during the daytime.

Question 10

Nightmare

Answer 10

• sleep disorder that is characterized by frequent frightening dreams that disrupt sleep
• sleep disorder that occurs in people who have experienced traumatic events and have repetitive bad dreams that force them to relive aspects of their trauma