Sleep Flashcards
Where is melatonin released
Pineal gland
What inhibits the pineal gland
SCN
On EEG, is alert high or low voltage
Low
On EEG, is alert high or low frequency
High
Describe theta wave
Low frequency, high amplitude
When are theta waves seen
Stage 1 sleep
When is R.E.M sleep
Stage4 –> Stage3–>Stage2–>R.E.M
How is R.E.M seen in EEG
High frequency and low amplitude (Very similar to awake)
Bursts of rapid waves in Stage2 sleep are call what
Sleep Spindles
Describe Delta wave EEG
High amplitude and low frequency
Where are Delta waves seen
Stage 3 and stage 4
How to you tell the difference between Stage 3 and Stage 4
Stage 3 has sleep spindles (not as many as Stage 2)
Stage 4 is in Delta waves
What are Alpha waves associated with
Awake but unfocused
What are beta waves associated with
Awake and focused
