Chapter 8: Part 1

Question 1

You will see _____ activity in the transition stage between being awake and falling asleep.

Answer 1

theta

Question 2

You will see _____ activity when the person in a relaxed state.

Answer 2

alpha

Question 3

what is beta activity?

Answer 3

Irregular electrical activity of 13–30 Hz recorded from the brain; generally associated with a state of arousal - attentive to environment or thinking actively

Question 4

what is delta activity?

Answer 4

Regular, synchronous electrical activity of less than 4 Hz recorded from the brain; occurs during the deepest stages of slow-wave sleep.

Question 5

when does delta activity occur?

Answer 5

stage 3 and 4, but 4 has the most

Question 6

what is slow-wave sleep?

Answer 6

Non-REM sleep, characterized by synchronized EEG activity during its deeper stages.

Question 7

what is REM sleep?

Answer 7

A period of desynchronized EEG activity during sleep, at which time dreaming, rapid eye movements, and muscular paralysis occur; also called paradoxical sleep.

Question 8

how can someone be awakened during stage 4?

Answer 8

by only loud noises, they will be awake groggy or confused

Question 9

can someone be awakened during REM sleep?

Answer 9

might not react to noises, but may be awakened by meaningful stimuli such as ones name, they may awake alert and attentive

Question 10

how long are sleep cycle?

Answer 10

90 minutes

Question 11

how much REM sleep occurs?

Answer 11

20 to 30 of REM sleep in a cycle