Working memory and response selection: A computational account of interactions among cortico-basalganglio-thalamic loops

  • Authors:

  • Henning Schroll;Julien Vitay;Fred H. Hamker

  • Affiliations:

  • Bernstein Center for Computational Neuroscience, Charité University Medicine, Philippstrasse 13, Haus 6, 10115 Berlin, Germany and Department of Psychology, Humboldt University Berlin, Unter ...;Department of Psychology, University of Münster, Fliednerstrasse 21, 48149 Münster, Germany and Department of Computer Science, Chemnitz University of Technology, Strasse der Nationen 62 ...;Bernstein Center for Computational Neuroscience, Charité University Medicine, Philippstrasse 13, Haus 6, 10115 Berlin, Germany and Department of Psychology, University of Münster, Fliedn ...

  • Venue:
  • Neural Networks
  • Year:
  • 2012

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Abstract

Cortico-basalganglio-thalamic loops are involved in both cognitive processes and motor control. We present a biologically meaningful computational model of how these loops contribute to the organization of working memory and the development of response behavior. Via reinforcement learning in basal ganglia, the model develops flexible control of working memory within prefrontal loops and achieves selection of appropriate responses based on working memory content and visual stimulation within a motor loop. We show that both working memory control and response selection can evolve within parallel and interacting cortico-basalganglio-thalamic loops by Hebbian and three-factor learning rules. Furthermore, the model gives a coherent explanation for how complex strategies of working memory control and response selection can derive from basic cognitive operations that can be learned via trial and error.