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psyc 106 sleep lecture studyguide (1)
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- NUR3196 Module 9 Respiratory Drugs
psyc 106 sleep lecture studyguide (1)
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psyc 106 sleep lecture studyguidewhat did people think sleep originally was? - ✅✅-thought there was no brain
activity occuring
how do people measure sleep? - ✅✅-polysomnography
what does an EEG track in sleep? - ✅✅-Electroencephalogram
total electrical activity over an area of cortex
what does an EOG track? - ✅✅-electrooculogram
eye tracking and movements
what does an EMG track? - ✅✅ -electromyogram
tracks muscular tone and activity in the muscles
how do the three graphs look like during wake? - ✅✅-eeg: fast and a lot of brain
activity, very high frequencies
eog: a lot of eye movement and peaks show left/right eye movement
emg: thick meaning there is a lot of tension in neck keeping head up
how do the three graphs look like during stages of sleep? - ✅✅-eeg: not much
brain activity, a lot slower wavelengths
eog: very little movement in eyes, not many peaks at all
emg: a lot thinner, meaning less pressure/tension
how do the three graphs look like during rem? - ✅✅
-rem is when you get vivid
dreams, so it has more similarities to awake graph
eeg: higher frequencies, lower amplitudes
eog: eyes rolling, so more peaks
emg: lowest neck tension in the phase because you do not want to act out your
dreams
how long are the sleep cycles? - ✅✅ -each is abt 60-90 mins
stage 1 and 2 to stage 3 to stage 2 to rem (and then repeated)
more nrem sleep in first half and then rem in second half
insomnia -✅✅-recurring problems in falling or staying asleep
sleep apnea - ✅✅-person stops breathing for brief periods while asleep which
wakes them up
seen commonly in old, males, and obese
hypersomnia - ✅✅-sleeping too much
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