PSY 1101 Lecture Notes - Lecture 15: Delta Wave, Suprachiasmatic Nucleus, Muscle Tone

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1101
• Professor: Kenneth Campbell

Document Summary

Consciousness & the two-track mind (chapter 3 in myers) What is the purpose of each: sleep is rhythmic. Recording sleep in humans: electroencephalogram (eeg, electromyogram (emg, electrooculogram (eog, other activity. How does an experimenter know if a subject is conscious: overt behaviour. Eeg arousal: beta (awake and alert) high frequency 15 hz+, low amplitude eeg, alpha (relaxed) 8 -12 hz, rhythmic eeg, delta (deep sleep; coma) low frequency 1-4 hz, high amplitude eeg theta (light sleep-drowsiness) 4-7 hz eeg. Beta (underlined in red) and alpha (in blue) eeg. Veog is a recording of vertical eye movements (i. e. , not eeg). The 6 other channels represent eeg activity from 6 diferent sites. The 3 remaining channels record eeg from frontal (fz), central (cz) and parietal (pz) electrode placements. The eeg was recorded over an 8 sec interval. In humans, sleep is a circadian rhythm detection of light-dark.