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It is currently accepted that cortical maps are dynamic constructions thatare altered in response to external input. Experience-dependent structuralchanges in cortical microcurcuts lead to changes of activity, i.e. to changesin information encoded. Specific patterns of external stimulation can lead tocreation of new synaptic connections between neurons. The calcium influxescontrolled by neuronal activity regulate the processes of neurotrophic factorsreleased by neurons, growth cones movement and synapse differentiation indeveloping neural systems. We propose a model for description and investigationof the activity dependent development of neural networks. The dynamics of thenetwork parameters (activity, diffusion of axon guidance chemicals, growth coneposition) is described by a closed set of differential equations. The modelpresented here describes the development of neural networks under theassumption of activity dependent axon guidance molecules. Numerical simulationshows that morpholess neurons compromise the development of corticalconnectivity.

The simulation of the activity dependent neural network growth