PSYC 444 Lecture Notes - Lecture 1: Polysomnography, Homeostasis, Organism

• School: McGill University
• Department: Psychology
• Course: PSYC 444
• Professor: Elizaveta Solomonova

Document Summary

Sacre-coeur hospital for sleep research (universt de montreal) Sleep scientist view: electrodes (polysomnographic markers) only way to know what stage of sleep you are in. Subjective experience: when you open your eyes, you have a subjective feeling that you slept. It is not the same as being knocked out or being in a coma: you have a feeling that you were sleeping. Homeostasis: an organism needs to maintain internal stability in face of environmental perturbation. Some people are fine with 4, others need 12: research says that sleeping too much is as bad as not sleeping enough. If sleep does not have a vital function then it serves nothing for evolution. We need sleep for memory and consolidation of memory, we need it for emotion, attention and other cognitive functions. Organism without central systems have patterns of activity and rest. Wake: awareness of self and world, reflexes: if something falls on you, you will jump out.