NPB%20112%2009%20intro

NPB%20112%2009%20intro - NPB 112, Sept. 24, 2009 Lecture 1...

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1 NPB 112, Sept. 24, 2009 Lecture 1 I. Historical concepts of brain function (Ch. 1) A. The brain is a fist-sized mass of billions of nerve cells (neurons). Most modern neuroscientists believe that the brain is involved in higher mental activity (at least the brains of UCD undergraduates, if not their professors). B. Ancient cultures: the heart is the seat of intelligence and the soul 1. Ancient Egyptians, when embalming dead, threw out brain, saved heart 2. Aristotle: brain cools blood for the heart to operate at an optimal temperature. C. Middle ages: certain cognitive functions were attributed to the brain 1. Dualism: intellect is not merely an epiphenomenon of brain activity, but depends on links with outside forces such as a diety 2. Monism: brain cell activity gives rise to the mind a. Descartes (1600s): nervous system as a "machine", nerves as ropes- example of boy being burned by fire, which pulls threads to ring a “bell” in the brain for pain sensation D. Phrenology (early 1800s):
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This note was uploaded on 11/14/2009 for the course NPB 33042 taught by Professor Carstens during the Spring '09 term at UC Davis.

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NPB%20112%2009%20intro - NPB 112, Sept. 24, 2009 Lecture 1...

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