CHAPTER 8 - knowledge representation ii observe the links...

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I. Mental Representation of knowledge A. declarative knowledge : knowledge of facts that can be stated (date of birth, name of your best friend) B. procedural knowledge: knowledge of procedures that can be implemented (steps involved in typing your shoelaces, adding a column of numbers or driving a car) C. cognitive psychologist have made extensive use of rationalist insights as a starting point for understanding cognition 1. seek some kind of empirical support for the insights proposed in rationalist accounts of cognition 2. two main sources of empirical data on knowledge representation a. standard laboratory experiments i. indirectly study knowledge representation ii. do so by observing how people handle various cognitive task that require the manipulation of mentally represented knowledge b. neuropsychological studies i. observe how the normal brain responds to various cognitive tasks involving
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Unformatted text preview: knowledge representation ii. observe the links between various deficits in knowledge representation and associated pathologies in the brain D. external representations: pictures vs. words 1. symbolic representation : that the relationship between the word and what it represents is simply arbitrary, nothing inherently catlike about the word 2. pictures aptly capture concrete and spatial information in a manner analogous to whatever they represent a. convey all features simultaneously 3. words handily capture abstract and categorical information in a manner that is symbolic of whatever they represent a. convey information sequentially E. Mental Imagery 1. imagery : the mental representation of things that are not currently being sensed by the sense organs a. may involve mental representations in any of the sensory modalities, such as hearing, smell or taste...
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