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15 Cards in this Set
- Front
- Back
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definitional approach to categorization
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can decide whether something is a member of a category by determining whether a particular object meets the definition of the category in this approach
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family resemblance
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the idea that things in a particular category resemble one another in a number of ways
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prototype approach to categorization
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membership in a category is determined by comparing the object to a prototype that represents the category in this approach
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exemplars
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actual members of the category that a person has encountered in the past
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heirarchical organization
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organization in which larger, more general categories are divided into smaller, more specific categories, creating a number of levels of categories
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superordinate level
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global level (furniture)
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basic level
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level of organization (table)
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specific level
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level of organization (kitchen table)
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connectionism
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an approach to creating computer models for representing concepts and their properties based on characteristics of the brain
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parallel distributed processing model
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model that uses connectionism, called this because they propose that concepts are represented by activity that is distributed across a network
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input units
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units activated by signals received from other units presented by the experimenter
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input units to hidden units to output units
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order of signal sending
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connection weights
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this determines how signals sent from one unit either increase or decrease the activity of the next unit
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back propagation
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the process by which error signals are sent back to the hidden and representation units to provide information about how the connection weights should be changed so that the correct property units will be activated
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graceful degredation
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disruption of performance occurs only gradually as parts of the system are damaged
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