3790Chapter1notes - Chapter 1 Cognitive Science- the...

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Chapter 1 Cognitive Science- the interdisciplinary study of the mind; not unified field, but intersection o Primary methodology is scientific method; that along with the topic of the mind hold cognitive science together. Theoretical Perspective- computation (aka information processing); information is represented and transformed—the mind must incorporate some for of mental representation and processes that act on and manipulate the information. Computers represent and transform information (in like fashion as the mind) o Represented-information input via devices (keyboard) and stored o Transformed o Although very different from computer processes, cog. Scientists view the mind as a machine or mechanism whose workings they are trying to understand. Representation- fundamental to cognitive science o Symbolic- stands for something else; referent-what the representation stands for; is realized by an entity Categories of Representation 1. Concepts- stands for single thing/group of things; doesn’t need to refer to concrete object; can be related to each other in hierarchical fashion 2. Propositions- can prove true or false; can apply rules of formal logic to determine validity ex: “Mary has black hair.” 3. Rules- specifies relationship between propositions (perform operations on propositions. i.e. If it is 1:30 on Tu/Th, I go to Boggs, or “if it is raining, then I will bring my umbrella” 4. Analogies- to make comparisons between similar objects; relationships. Involves applying familiarity from an old situation with a new one. Four Crucial aspects of any Representation: o “representation bearer” such as a human must realize a representation o a representation must have content—meaning it stands for one or more objects. o Representation must be “grounded,” there much be some way in which the representation and its referent come to be related. o Representation must be interpretable by some interpreter, either the representation bearer himself or somebody else. Human mental representation (esp. linguistic ones) are said to be semantic, have meaning. o Intentionality- “directed upon an object”; mental states and events are intentional. Has 2 properties: 1. Isomorphism- similarity of structure between a representation and its referent. Ex: analog visual images (preserve spatial characteristics of the referent)
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2. Appropriate causal relation- The relationship between inputs and outputs to the world. Intentional representation must be
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This note was uploaded on 09/17/2009 for the course ISYE/PSYC/ 3790 taught by Professor Arriaga during the Fall '08 term at Georgia Tech.

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3790Chapter1notes - Chapter 1 Cognitive Science- the...

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