PSYC 208 Lecture Notes - Lecture 2: Wilhelm Griesinger, Richard Caton, Sleep Deprivation
Document Summary
Chapter 9 and 12 historical context on sleep and dreams (page: 307- Tutu (egyptian) protects the sleeper from nightmares, omens and other types of dangers. Hypnos (greek) origin of the word hypnosis; god of sleep. Somnus (roman) origin of the word insomnia; god of sleep. Morpheus (greek and roman) son of hypnos. Serapis (egyptian) - god of dreams; gives instructions in dreams; involved with resurrection. 450 bc alcmaeon: earliest documented theory of sleep, loss of consciousness as blood retreats from surface of body. 400 bc hippocrates: sleep is due to blood retreating to the inner regions of the body; we should sleep at night, in a cool environment. 350 bc aristotle: sleep due to warm vapours rising from the heart during digestion, sleep is a physical time of renewal. 162 bc - galen (physician): consciousness is in brain, not the heart; sleep is about recovery of the brain. Philosophy of sleep sleep is temporary metaphysical death.
