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An integrated theory of the mind
John R Anderson1, Daniel Bothell, Michael D Byrne
1Psychology Department, Carnegie Mellon University, Pittsburgh, PA 15213, USA. ja@cmu.edu.
Psychological Review
|October 16, 2004
Summary
The Adaptive Control of Thought-Rational (ACT-R) theory integrates specialized cognitive modules, like perceptual-motor and memory systems, to explain coherent thought and learning through pattern recognition and subsymbolic process tuning.
Area of Science:
- Cognitive Science
- Computational Neuroscience
- Cognitive Psychology
Background:
- The Adaptive Control of Thought-Rational (ACT-R) is a cognitive architecture.
- ACT-R has evolved to incorporate multiple specialized modules.
- These modules are theorized to be associated with distinct cortical regions.
Purpose of the Study:
- To explain how specialized modules in ACT-R are integrated.
- To illustrate the function of modules like perceptual-motor, goal, and declarative memory.
- To demonstrate how subsymbolic processes guide cognitive operations and learning.
Main Methods:
- Description of ACT-R's modular structure.
- Explanation of information flow via buffers and a production system.
- Discussion of subsymbolic processes in rule selection and module operations.
Main Results:
- ACT-R integrates specialized modules (e.g., perceptual-motor, goal, declarative memory).
- A production system detects patterns in module buffers to select cognitive actions.
- Subsymbolic processes tune rule selection and module operations, underpinning learning.
Conclusions:
- The ACT-R architecture provides a framework for understanding integrated cognition.
- Module interaction and subsymbolic tuning are key to producing coherent thought.
- Empirical examples demonstrate the functional capabilities of ACT-R's modules.