Vision - For Vision we will not be covering the sections of...

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For Vision, we will not be covering the sections of the text discussing color, form, spatial frequency, spatial location, or movement.
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Some important events: Around 1000 A.D., the Arab philosopher Ibn al- Haythem discovered that light striking the eye results in vision; it had been previously thought that the eye sent out sight-rays. This is considered to be the first scientific psychological research. 1649, Rene Descartes writes about mind Also 17th century: John Locke expounds Tabula Rasa 1740s: Davids (Hume and Hartley) pioneer the British Associationist movement. Determinism, empiricism.
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Sensation and Perception The study of S & P is the origin of study of Psychology - Where does knowledge come from? Nativists: We inherit or are born with knowledge Empiricists: We acquire knowledge through interactions with universe - requires perception of world around us - assumed we can come to know everything about universe through experience (via perceptions) - Comte: Logical Positivism - application of empirical scientific methods to study mental processes (widely thought to be the pioneer of current scientific thought and research – secular humanism, altruism.)
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- Locke: mind is a “tabula rasa” modified by experience Study of S&P is study of methods for modifying blank slate: How do we extract information from the universe? How does a stimulus lead to experience?
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Why S & P Easily observed It was thought that “answerable” questions could be asked (psychophysical function) Wundt, Tichner
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Studying Sensation Relationship between stimuli and sensation This WAS psychology to a large extent Early on, 50% of publication. Now, 5-10%. Biggest reason – question was ANSWERABLE, unlike, seemingly, questions about personality. Also, answers nonobvious. Eg: Double bright light doesn’t equal double bright percept; leads to mathematical equation called Psychophysical Function. Scientific methods answering psychological questions.
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Problems with early Empiricist views and the “Tabula Rasa” - Mind is not truly a “blank slate”
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  • Spring '09
  • Tomei
  • Psychology, Photoreceptor cell, receptive field, Visual Assn Ctx

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