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An integrate and fire model of prefrontal cortex provides a biological implementation of action selection in reinforcement learning theory that reuses known representations

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2 Author(s)
Koene, R.A. ; Dept. of Psychol. & Program in Neurosci., Boston Univ., MA, USA ; Hasselmo, M.E.

Task specific spiking activity that is selective for specific perceptions and actions is observed in the pre frontal cortex (PFC) of primates and rats during goal-directed behavior. A spiking neuron model of minicolumn circuits in PFC has been shown to successfully replicate the performance and categories of selective neuronal responses recorded in a primate visual discrimination task. The model provides a biological implementation of the action selection process used in reinforcement learning theory. Using this model, we propose a mechanistic explanation based on the reuse of previous encoding in PFC minicolumns for the ability to find short-cuts during the learning of some novel goal-directed tasks, but not others.

Published in:

Neural Networks, 2005. IJCNN '05. Proceedings. 2005 IEEE International Joint Conference on  (Volume:5 )

Date of Conference:

31 July-4 Aug. 2005