A Computational Model of Cortico-Striato-Thalamic Circuits in Goal-Directed Behaviour

Authors:
N. Serap Şengör;"Ozkan Karabacak;Ulrich Steinmetz
Affiliations:
Electrical and Electronics Engineering Faculty, Maslak, Istanbul Technical University, Istanbul, Turkey 34469;Electrical and Electronics Engineering Faculty, Maslak, Istanbul Technical University, Istanbul, Turkey 34469 and School of Engineering, Computing and Mathematics, Harrison Building, University of ...;FGAN-FOM, Forschungsinstitut fr Optronik und Mustererkennung, Ettlingen, Germany D-76275
Venue:
ICANN '08 Proceedings of the 18th international conference on Artificial Neural Networks, Part II
Year:
2008

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Abstract

A connectionist model of cortico-striato-thalamic loops unifying learning and action selection is proposed. The aim in proposing the connectionist model is to develop a simple model revealing the mechanisms behind the cognitive process of goal directed behaviour rather than merely obtaining a model of neural structures. In the proposed connectionist model, the action selection is realized by a non-linear dynamical system, while learning that modifies the action selection is realized similar to actor-critic model of reinforcement learning. The task of sequence learning is solved with the proposed model to make clear how the model can be implemented.