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Dynamics of a neuron exposed to integer- and fractional-order discontinuous external magnetic flux

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We propose a modified Fitzhugh-Nagumo neuron (MFNN) model. Based on this model, an integer-order MFNN system (case A) and a fractional-order MFNN system (case B) were investigated. In the presence of electromagnetic induction and radiation, memductance and induction can show a variety of distributions. Fractional-order magnetic flux can then be considered. Indeed, a fractional-order setting can be acceptable for non-uniform diffusion. In the case of an MFNN system with integer-order discontinuous magnetic flux, the system has chaotic and non-chaotic attractors. Dynamical analysis of the system shows the birth and death of period doubling, which is a sign of antimonotonicity. Such a behavior has not been studied previously in the dynamics of neurons. In an MFNN system with fractional-order discontinuous magnetic flux, different attractors such as chaotic and periodic attractors can be observed. However, there is no sign of antimonotonicity.

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Correspondence to Viet-Thanh Pham.

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Rajagopal, K., Nazarimehr, F., Karthikeyan, A. et al. Dynamics of a neuron exposed to integer- and fractional-order discontinuous external magnetic flux. Frontiers Inf Technol Electronic Eng 20, 584–590 (2019). https://doi.org/10.1631/FITEE.1800389

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  • DOI: https://doi.org/10.1631/FITEE.1800389

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