Sleep Flashcards Preview

Neuroscience > Sleep > Flashcards

Flashcards in Sleep Deck (7):
1

What would you expect to find on an EEG, EOG and EMG in the awake stage?

EEG: Fast activity, high frequency, beta activity
EOG: Some eye movements
EMG: Strong muscle tone

2

What would you expect to find on an EEG, EOG and EMG in the stages 1&2 of sleep?

Slow wave/NREM sleep
EEG: brain activity slows, theta activity, drowsiness
EOG: No eye movements
EMG: Muscle tone reduces

3

What would you expect to find on an EEG, EOG and EMG instates 3&4 of sleep?

EEG: brain activity is even slower, delta activity, low frequency
EOG: no real eye movement
EMG: low muscle tone

4

What would you expect to find on an EEG, EOG and EMG in stage 5 of sleep?

REM sleep
EEG: fast brain activity, similar to beta activity
EOG: wide eye movements
EMG: minimal muscle tone

5

How long is one typical sleep cycle?

1-1.5 hours

6

What are the bodily functions that are synchronised to NREM and REM sleep?

NREM: slow HR and respiration decreases
REM: HR and respiration rate increases

7

How does the reticular activating system influence arousal?

It is the main control on consciousness which is generally synced with the level of arousal.
It can directly or indirectly through the intralaminar nuclei of the thalamus project to the cortex.