PSY 1101 Lecture Notes - Lecture 7: Samuel Taylor Coleridge, Non-Rapid Eye Movement Sleep, Alpha Beta

• 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 brain"s response to stimuli (evoked potentials) Beta (underlined in red) and alpha (in blue) eeg. In humans, sleep is a circadian rhythm dark. Suprachiasmatic nucleus & pineal gland: we normally sleep on a 24 hour schedule, this is regulated by the light-dark cycle. It is the suprachiasmatic nucleus (scn) that detects lightness-darkness. What is the effect of constant lightness/darkness: what happens if the optic nerve is severed prior to scn. The animal is now in constant darkness and because it no longer receives cues about the 24 hour light/darkness cycle, a new sleep-wake cycle develops: this cycle last about 25 hours in humans.