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Homeostatic development of dynamic neural fields

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3 Author(s)
Claudius Glaser ; Honda Research Institute Europe, Carl-Legien-Str. 30, D-63073 Offenbach/Main, Germany ; Frank Joublin ; Christian Goerick

Dynamic neural field theory has become a popular technique for modeling the spatio-temporal evolution of activity within the cortex. When using neural fields the right balance between excitation and inhibition within the field is crucial for a stable operation. Finding this balance is a severe problem, particularly in face of experience-driven changes of synaptic strengths. Homeostatic plasticity, where the objective function for each unit is to reach some target firing rate, seems to counteract this problem. Here we present a recurrent neural network model composed of excitatory and inhibitory units which can self-organize via a learning regime incorporating Hebbian plasticity, homeostatic synaptic scaling, and self-regulatory changes in the intrinsic excitability of neurons. Furthermore, we do not define a neural field topology by a fixed lateral connectivity; rather we learn lateral connections as well.

Published in:

2008 7th IEEE International Conference on Development and Learning

Date of Conference:

9-12 Aug. 2008