CAMS-UA 170 Lecture Notes - Lecture 2: Ventricular System, Pineal Gland, Medicinal Plants
22 Aug 2016
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1: active vs. passive theories, distinguish between different discoveries made. Sleep/dreams are present in various countries/religions: india, bible, veda, koran. Disturbances (sleep seen as a medical problem): egypt goddess isis: early forms of hypnosis, medicinal plants induce sleep: opium, poppy, alcohol. Greek: death/sleep twin brothers homer: sleep thought of as a disease (inactive, bible: sleep is a way to rest/detach from troubles of world, hypnos, somnus, morpheus. Theory: caused by changes in distribution of blood in body. Aristotle on sleep and sleepiness : in digestion, vapors from stomach go to heart (believed to be the source of life, but really meant brain) to cause sleep. Descartes: hydraulic method of sleep 16th 17th century. Pineal gland: keeps part of brain open during day and when it shuts close, you go into sleep. Responsible for keeping cerebral ventricle full to maintain alertness/wakefulness. Macnish: sleep = intermediate between wake and death .
