PSYC 1001 Lecture Notes - Lecture 20: Sleep Deprivation, Electromyography, Electrocardiography

• School: Carleton University
• Department: Psychology
• Course: PSYC 1001
• Professor: Chris Motz

Document Summary

Selective deprivation: depriving someone of a specific stage of sleep by waking them up just before it happens. Nature of sleep: examining the nature of electrical activity in the brain and body. Electromyogram (emg): electrical activity in the muscles in the body. Frequency (f): the rate of repetition of the waves. Amplitude (a): the height of the wave: brain activity non-rem sleep. Electrooculogram (eog): electrical activity in muscles around the eye. Awake: beta activity high f & low a (15-30 hz) Drowsy: alpha activity med f & med a (8-12 hz) Stage 1 of real sleep: transition between sleep and wakefulness. Some electrical activity in the body muscles. Stage 2 of real sleep: mostly theta activity. Theta activity decreases in f and increases in a. Stage 4: delta activity low f & high a (< 3. 5 hz) Through each cycle you spend more time in rem than in slow-wave sleep (stages 3 and 4)!