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Published April 2007 | public
Journal Article

From memory based decisions to decision based movements: A model of interval discrimination followed by action selection

Abstract

Interval discrimination task is a classical experimental paradigm that is employed to study working memory and decision making and typically involves four phases. First the subject receives a stimulus, then holds it in the working memory, then makes a decision by comparing it with another stimulus, and finally acts on this decision, usually by pressing one of the two buttons corresponding to the binary decision. A neurocomputational algorithm using generic neural microcircuits with feedback is presented here that integrates the four computational stages into a single unified framework. The algorithm is tested using two-interval discrimination and delayed-match-to-sample experimental paradigms as benchmarks.

Additional Information

Copyright © 2007 Elsevier Ltd. Available online 3 May 2007. Helpful comments from Wolfgang Maass, Herbert Jaeger, Carlos Brody and anonymous reviewers on the draft version of this manuscript are gratefully acknowledged. Written under partial support by the Austrian Science Fund FWF, project #P17229-N04 and project #FP6-015879 (FACETS) of the European Union.

Additional details

Created:
September 15, 2023
Modified:
October 23, 2023