PSYC 1004 Lecture Notes - Lecture 3: Rapid Eye Movement Sleep, Delta Wave, Psychophysiology
Document Summary
Rapid eye movements, irregular respiration; or there can be no eye movements, calm respiration. 10-20 system lets us communicate with other scientists about which part of brain we are talking about, allows us to communicate of what area of brain we found our findings on. Most common thing used is flashing light/strobe light. Found b/w 6-7 low activity, b/w 7-8 high activity (delta activity) Right temporal lobe associated with hyper sexually sleep study example, instead of 120 electrodes, only two. As go into rem sleep, eeg record shows higher arousal than when wide awake. Eeg record shows predominance of alpha waves, 8-12 hz, occurs primarily in back of brain. Increase alpha by closing eyes, opening eyes suppress alpha. Gradual transition, very light sleep, so light don"t know you are asleep, many elderly spend time in this stage. Stage 2- very important diagnostically, transition stage** transition b/w light sleep and deep sleep.
