PSY 102 Chapter 5: Psychology Chapter 5 Textbook Notes

• School: Ryerson University
• Department: Psychology
• Course: PSY 102
• Professor: Kosha Bramesfeld

Document Summary

* consciousness: subjective experience of the world and ourselves, awareness of thoughts, emotions, bodily sensations, events and actions. The circadian rhythm: the cycle of everyday life. * circadian rhythm is a term for changes that occur on a 24 hour basis in our biological processes. * scn: biological clock, in the hypothalamus, make us feel drowsy at different times of the day/night. * melatonin: hormone which triggers feelings of sleepiness, which increase after dark. * adults need 7-10 hours of sleep, babies need 16 over the course of a day, students need 9 hours. * sleep deprivation is associated with weight gain, high blood pressure, diabetes and heart problems. * rem (rapid eye movement): eye movement in sleep supposedly due to vivid dreams. * stage one sleep: brain powers down 50% or more, produce theta waves, experience hypnagogic imagery or bizarre dreamlike images, jerking.