Epam Theorymodelprogram

The American cognitive psychologist, economist, and philosopher Herbert Alexander Simon (1916-2001) and the cognitive/computer scientist Edward A. Feigenbaum (1936- ) proposed and developed this unified theory simulating perception and memory called EPAM ("elementary perceiver and memo-rizer") in 1959, which is a computer program that explains behavior in a number of experimental paradigms, including the classical experimental domain of verbal memory, and learning to categorize stimuli. Thus, EPAM -as a computer simulation of human perceptual, recognition, and memory processes, and the symbolic structures that support them -has been successful in predicting a large range of experimental/empirical findings about human perception, verbal and concept learning, and short-term and long-term memory. The most recent version of this model is called EPAM IV and has been adapted to handle short- and long-term memory tasks as well as expert memory tasks. The major current modifications include a retrieval structure, or a long-term memory schema, created by the expert's learning operations and complemented by the addition of an associative search process in long-term memory. See also ADAPTIVE CONTROL OF THOUGHT THEORY/MODEL; INFORMATION AND INFORMATION-PROCESSING THEORY; SHORT-TERM AND LONG-TERM MEMORY, THEORIES OF. REFERENCES

Simon, H. A., & Newell, A. (1964). Information processing in computer and man. American Scientist, 52, 281300.

Feigenbaum, E. A. (1965). Memory mechanism and EPAM theory. In D. Kimble (Ed.), The anatomy of memory. New York: Science and Behavior Books.

Simon, H. A., & Barenfeld, M. (1969). Information processing analysis of perceptual processes in problem solving. Psychological Review, 76, 473483.

Newell, A. (1990). Unified theories of cognition. Cambridge, MA: Harvard University Press. Richman, H. B., Staszewski, J. J., & Simon, H. A. (1995). Simulation of expert memory using EPAM IV. Psychological Review, 102, 305-330.

EPIGENETIC THEORY. See ERIKSON'S THEORY OF PERSONALITY; GALTON'S LAWS; WEISMANN'S THEORY.

EPIMENIDES' PARADOX. See GODEL'S THEOREM/PROOF.

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