Semantic Cognition: A Parallel Distributed Processing Approach

Semantic Cognition: A Parallel Distributed Processing Approach

by Timothy T. Rogers, James L. McClelland
     
 

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ISBN-10: 0262681579

ISBN-13: 9780262681575

Pub. Date: 01/20/2006

Publisher: MIT Press

This groundbreaking monograph offers a mechanistic theory of the representation and use of semantic knowledge, integrating the strengths and overcoming many of the weaknesses of hierarchical, categorization-based approaches,
similarity-based approaches, and the approach often called "theory theory." Building on earlier models by Geoffrey Hinton in the 1980s and

Overview

This groundbreaking monograph offers a mechanistic theory of the representation and use of semantic knowledge, integrating the strengths and overcoming many of the weaknesses of hierarchical, categorization-based approaches,
similarity-based approaches, and the approach often called "theory theory." Building on earlier models by Geoffrey Hinton in the 1980s and David Rumelhart in the early
1990s, the authors propose that performance in semantic tasks arises through the propagation of graded signals in a system of interconnected processing units. The representations used in performing these tasks are patterns of activation across units, governed by weighted connections among them. Semantic knowledge is acquired through the gradual adjustment of the strengths of these connections in the course of day-to-day experience.

The authors show how a simple computational model proposed by Rumelhart exhibits a progressive differentiation of conceptual knowledge, paralleling aspects of cognitive development seen in the work of Frank Keil and Jean Mandler. The authors extend the model to address aspects of conceptual knowledge acquisition in infancy, disintegration of conceptual knowledge in dementia, "basic-level" effects and their interaction with expertise, and many findings introduced to support the idea that semantic cognition is guided by naive,
domain-specific theories.

Product Details

ISBN-13:
9780262681575
Publisher:
MIT Press
Publication date:
01/20/2006
Series:
Bradford Books Series
Edition description:
New Edition
Pages:
448
Sales rank:
1,091,925
Product dimensions:
7.00(w) x 9.00(h) x 0.75(d)
Age Range:
18 Years

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