title: Spike width and frequency alter stability of phase-locking in electrically coupled neurons.
abstract: The stability of phase-locked states of electrically coupled type-1 phase response curve neurons is studied using piecewise linear formulations for their voltage profile and phase response curves. We find that at low frequency and/or small spike width, synchrony is stable, and antisynchrony unstable. At high frequency and/or large spike width, these phase-locked states switch their stability. Increasing the ratio of spike width to spike height causes the antisynchronous state to transition into a stable synchronous state. We compute the interaction function and the boundaries of stability of both these phase-locked states, and present analytical expressions for them. We also study the effect of phase response curve skewness on the boundaries of synchrony and antisynchrony.
authors.affiliation: Department of Biology, University of Texas at San Antonio, San Antonio, TX 78249, USA. ramana.dodla@utsa.edu
authors.forename: Ramana
authors.initials: R
authors.lastname: Dodla
authors.forename: Charles J
authors.initials: CJ
authors.lastname: Wilson
mesh_terms: D000200:Action Potentials / Q000502:physiology*; D000818:Animals; D054351:Electrical Synapses / Q000502:physiology*; D008959:Models, Neurological; D009415:Nerve Net / Q000502:physiology; D009474:Neurons / Q000502:physiology*