PSYC 3260 Chapter Notes - Chapter 9: Lexical Decision Task, Fault Tolerance, Eleanor Rosch
30 Nov 2016
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Knowledge: concept: mental representation used for a variety of cognitive functions, categorization is the process by which things are placed into groups called categories. Why categories are useful: help to understand individual cases not previously encountered, pointers to knowledge . Categories provide a wealth of general information about an item. Allow us to identify the special characteristics of a particular item. Prototypes or exemplars: may use both, exemplars may work best for small categories, prototypes may work best for larger categories. A hierarchical organization: to fully understand how people categorize objects, one must consider. Is predictive and explanatory of some results, but not all: generated multiple experiments, lack of falsifiability. No rules for determining link length or how long activation will spread. Therefore, there is no experiment that would prove it wrong . The connectionist approach: how do neurons that can only either signal or not signal (on-off) represent knowledge, model on digital circuitry.
