Dynamical Phase Transitions In Driven Integrate-And-Fire Neurons

Jan R. Engelbrecht; Renato Mirollo

doi:10.1103/physreve.79.021904

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arXiv · 0710.0391

Dynamical Phase Transitions In Driven Integrate-And-Fire Neurons

Jan R. Engelbrecht·Renato Mirollo

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Abstract

We explore the dynamics of an integrate-and-fire neuron with an oscillatory stimulus. The frustration due to the competition between the neuron's natural firing period and that of the oscillatory rhythm, leads to a rich structure of asymptotic phase locking patterns and ordering dynamics. The phase transitions between these states can be classified as either tangent or discontinuous bifurcations, each with its own characteristic scaling laws. The discontinuous bifurcations exhibit a new kind of phase transition that may be viewed as intermediate between continuous and first order, while tangent bifurcations behave like continuous transitions with a diverging coherence scale.

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BibTeX RIS

Jan R. Engelbrecht, Renato Mirollo. 2007-10-01. Dynamical Phase Transitions In Driven Integrate-And-Fire Neurons. https://doi.org/10.1103/physreve.79.021904

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