EEG Waves

Question 1

DISAPPEARS when a patient’s eye is OPEN

Answer 1

Alpha

Question 2

Awake, aroused, alert state

Eyes open or during REM SLEEP

Answer 2

Beta

Question 3

Early stage of slow wave sleep

Brain disorders and degenerative brain states

Answer 3

Theta

Question 4

Stage 3 NREM sleep

Organic brain disease
Infants

Answer 4

Delta

Question 5

REM SLEEP (Paradoxical Sleep)

more difficult to arouse by sensory stimuli

BETA waves

Answer 5

(+) active dreaming
occurs every 90 mins of slow wave sleep

increased brain metabolism
decreased muscle tone
pupillary constriction
active body movements
irregular BP, HR, RR
penile erection
rapid eye movements

Question 6

SLOW WAVE SLEEP (NREM SLEEP)

Answer 6

dreamless or unremembered dreams

difficult to arouse by sensory stimuli

Question 7

DECREASES duration of REM sleep

Answer 7

age
alcohol
benzodiazepines
amphetamine