Michael Thomas (1998) Connectionism is a Progressive Research Programme: . Psycoloquy: 9(36) Connectionist Explanation (29)
Versions: ASCII formatted
Psycoloquy 9(36): Connectionism is a Progressive Research Programme:

CONNECTIONISM IS A PROGRESSIVE RESEARCH PROGRAMME:
"COGNITIVE" CONNECTIONIST MODELS ARE JUST MODELS
Commentary on Green on Connectionist-Explanation

Michael Thomas
Department of Psychology
King Alfred's University College
Winchester
Hants SO22 4NR

Tony Stone
Division of Psychology
South Bank University
London SE1 0AA

michael.thomas@psy.ox.ac.uk stonea@sbu.ac.uk

Abstract

Connectionist models are cognitive models which can serve two functions. They can demonstrate the computational feasibility of a cognitive theory (in this sense they model cognitive theories), or they can suggest new ways of conceiving the functional structure of the cognitive system. The latter leads to connectionist theories with new theoretical constructs, such as stable attractors, or soft constraint satisfaction. A number of examples of connectionist models and theories demonstrate the fertility of connectionism, a progressive research programme in Lakatos's (1970) sense. Green's (1998a) specificity argument against connectionist theoretical constructs fails because it relies upon a simplistic view of theoretical constructs that would undermine even the "gene" construct, Green's paradigmatic example of a theoretical entity in good standing. This view of theoretical entities is based upon a simplistic Popperian picture of science.

Keywords

artificial intelligence, cognition, computer modelling, connectionism, epistemology, explanation, methodology, neural nets, philosophy of science, theory.

References