PSYC 1010 Lecture Notes - Lecture 6: Sleepwalking, Melatonin, Night Terror

• School: York University
• Department: Psychology
• Course: PSYC 1010
• Professor: Myriam Mongrain

Document Summary

Chapter 5: variations in consciousness part 1: structure of consciousness, everyday changes in consciousness, circadian rhythms, the sleep cycle, structure of consciousness, tip of the iceberg. Conscious awareness of yourself and your environment. We protect ourselves from information that is threatening to us: everyday changes in consciousness. Biological clock governing cycles in bodily functions. 24 hours of alertness, core body temperature, sensation of growth hormone. Core body temperature goes down when sleeping. Receptors in the retina send input to the hypothalamus. Small structure of the hypothalamus sends signal to pineal gland. Leads to the secretion of melatonin which contributes to sleep regulation. Easier to add additional time to your day. Harder to subtract time from your day: b) the sleep cycle. Stage 3 & 4 (combined because they are quite similar) Slow-wave sleep (delta waves) It"s not restorative sleep unless its natural. Longer in the first part of the night.