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Cog Psych Ch 1 - Cog Psych Chapter 1 Possibilities...

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Cog Psych Chapter 1 – Possibilities, information, and approaches to the study of the mind - Introduction o Domain of Cognitive Psych Cognitive psych – the study of thought The ability to perceive, reason, solve problems, use language, learn and remember, and move about our world o Intuition Cant use common sense or intuition to explain cog psych Naïve realism – perception involves nothing more and nothing less than seeing the world as it is It doesn’t address the fact that our perception is often colored by our expectations and beliefs Doesn’t provide any explanation of how perception is actually accomplished o Puzzles Perceptual system makes assumptions about the nature of the world to deal with ambiguity Assumptions are accurate enough but no infalliable Fail = illusions Shape constancy – an object does not appear to stretch or shrink or change size as you change views Normally we are not aware of the assumptions made by our perceptual system The perceptual system is normally faced with ambiguous information which it interprets by making assumptions that resolve the ambiguity o Usually close enough to the truth The tasks that come most naturally to people are the ones often more difficult to impliment into a machine (for example, common
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sense) Artificial intelligence – the science of writing programs that do interlligent things o Possibilities Information overload – hard to filter thru all this info to focus on the part that is useful or personally relevant The more possibilities or potential information, the harder it is to single out what will be useful o A Framework Computational complexity – the observation that many cognitive procedures are impractical because of the time and effort needed to evaluate the very large number of alternative possibilities
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