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L01-Intro - Definition of Psychobiology the study of...

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01/18/07 Definition of Psychobiology: the study of biological mechanisms that give rise to sensation, perception, thought, and behavior Origins of Psychobiology o Egyptians (~3000 BC) recognized links between the brain and behavior o Hippocrates (~400 BC) wrote about the brain: brain responsible for emotions, learning, ethics, and senses. o Plato shared this view, but Aristotle (~320 BC) abandoned it, believing that the heart and other organs were the source of wisdom and intellect. Brain vs. Heart o Lucretius (~55 BC): The heart “is the seat of the intellect and mind.” o Galen (~150 BC) demonstrated using live dissection that the brain was the center of control for physical and mental activity o Experimental evidence shows that the brain is responsible for behavior and perception o Medieval scholars were influenced by Aristotle and the Bible, which placed the seat of reason, intellect, and emotions in different bodily organs (heart, kidney, liver, etc.) o
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