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class+2+slides_posted - Sensation and Perception Class II...

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Sensation and Perception Class II: Philosophy (cont.) Psychophysics
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Nativism and Empiricism Nativism : The idea that the mind produces ideas that are not derived from external sources, and that we have abilities that are innate and not learned Dualism : The idea that both mind and body exist and are separate entities Both of these ideas were championed by Descartes
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Nativism and Empiricism René Descartes (1596– 1650) argued for mind- body dualism , the idea that the universe consists of spirit/soul and matter/body Cogito ergo sum I think, therefore I am.
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Nativism and Empiricism Empiricism : The idea that all knowledge comes through the senses Opposed to nativism, which says that some knowledge is innate According to empiricism, perception is the source of all knowledge about the world
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Nativism and Empiricism Thomas Hobbes (1588– 1678) believed that everything that could ever be known or imagined had to be learned through the senses
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Nativism and Empiricism John Locke (1632–1704) sought to explain how all thoughts, even complex ones, could be constructed from experience with a collection of sensations Believed that humans begin life as a “tabula rasa” , a blank slate.
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Nativism and Empiricism George Berkeley (1685–1753) studied ways in which perception is limited to the information available to us through our eyes He was concerned that if empiricism (Locke) was right that all knowledge reached us through our senses, then how did we know there was a material world out there at all? Idealism: “Esse est percipi” – to be is to be perceived. The rejection of a physical world outside the realm of perception.
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Figure 1.9 Berkeley’s exploration of how vision works
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Nativism and Empiricism How do the ideas of Nativism and Empiricism relate to neuroscience and perception? Genes play a major role in building the brain and the sensory organs and can shape our sensations and perceptions.
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Nativism and Empiricism How do the ideas of Nativism and Empiricism relate to neuroscience and perception? Genes play a major role in building the brain and the
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class+2+slides_posted - Sensation and Perception Class II...

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