Biological Principles in Self-Organization of Young Brain - Viewed from Kohonen Model

Details Biological Principles in Self-Organization of Young Brain - Viewed from Kohonen Model Biological Principles in Self-Organization of Young Brain - Viewed from Kohonen Model

2006-08-31

arxiv.org/abs/physics/0609002v1

AIP Conf. Proc. Vol. 1018 (2008), 207-214

Physics

Biological Physics

Scientific paper

10.1063/1.2947685

Variants of the Kohonen model are proposed to study biological principles of self-organization in a model of young brain. We suggest a function to measure aquired knowledge and use it to auto-adapt the topology of neuronal connectivity, yielding substantial organizational improvement relative to the standard model. In the early phase of organization with most intense learning, we observe that neural connectivity is of Small World type, which is very efficient to organize neurons in response to stimuli. In analogy to human brain where pruning of neural connectivity (and neuron cell death) occurs in early life, this feature is present also in our model, which is found to stabilize neuronal response to stimuli.

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