PSY 1101 Lecture Notes - Lecture 6: Myelin, Optic Chiasm, Heart Rate

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

Document Summary

Consciousness & the two-track mind (chapter 3 in myers) Consciousness as a state (wake & sleep states) 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 theta (light sleep-drowsiness) 4-7 hz eeg delta (deep sleep; coma) low frequency 1-4 hz, high amplitude eeg. Beta (underlined in red) and alpha (in blue) eeg. The first channel veog is a recording of vertical eye movements (i. e. , not eeg). The eeg was recorded over an 8 sec interval. The 3 remaining channels record eeg from frontal (fz), central (cz) and parietal (pz) electrode placements. Eeg was recorded over an 8 sec interval. Suprachiasmatic nucleus & pineal gland: we normally sleep on a 24 hour schedule, this is regulated by the light-dark cycle.