Optimal Design of Minimum-Power Stimuli for Spiking Neurons

Details Optimal Design of Minimum-Power Stimuli for Spiking Neurons Optimal Design of Minimum-Power Stimuli for Spiking Neurons

2010-11-16

arxiv.org/abs/1011.3842v1

Mathematics

Dynamical Systems

8 pages, 10 figures

Scientific paper

In this article, we study optimal control problems of spiking neurons whose dynamics are described by a phase model. We design minimum-power current stimuli (controls) that lead to targeted spiking times of neurons, where the cases with unbounded and bounded control amplitude are considered. We show that theoretically the spiking period of a neuron, modeled by phase dynamics, can be arbitrarily altered by a smooth control. However, if the control amplitude is bounded, the range of possible spiking times is constrained and determined by the bound, and feasible spiking times are optimally achieved by piecewise continuous controls. We present analytic expressions of these minimum-power stimuli for spiking neurons and illustrate the optimal solutions with numerical simulations.

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