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Updated: Feb 12, 2026

Inducing Plasticity of Astrocytic Receptors by Manipulation of Neuronal Firing Rates
Published on: March 20, 2014
Asymmetry in electrical coupling between neurons alters multistable firing behavior
A N Pisarchik1, R Jaimes-Reátegui2, M A García-Vellisca1
1Center for Biomedical Technology, Technical University of Madrid, Pozuelo de Alarcon 28223, Spain.
Abstract:
The role of asymmetry in electrical synaptic connection between two neuronal oscillators is studied in the Hindmarsh-Rose model. We demonstrate that the asymmetry induces multistability in spiking dynamics of the coupled neuronal oscillators. The coexistence of at least three attractors, one chaotic and two periodic orbits, for certain coupling strengths is demonstrated with time series, phase portraits, bifurcation diagrams, basins of attraction of the coexisting states, Lyapunov exponents, and standard deviations of peak amplitudes and interspike intervals. The experimental results with analog electronic circuits are in good agreement with the results of numerical simulations.
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