title: Novel types of bistability in a model of a bursting pacemaker neuron RPa1 from the snail, Helix pomatia.
abstract: The RPa1 neuron identified in the snail, Helix pomatia, produced a variety of electrical activities (e.g. bursting and spiking). A previously developed mathematical model, which described these activities, revealed bistability between bursting and chaotic spiking, where chaotic spiking was transformed into bursting by a short-lasting external stimulus, and vice versa. The present study used this model to detect other types of bistability, i.e. bistability between bursting and period-2 spiking and between bursting and period-4 spiking (period-2 and -4 spiking are generated by period-doubling bifurcation). This contributes to our understanding of the electrophysiological properties of RPa1.
authors.affiliation: Tokushima Bunri University, Kagawa School of Pharmaceutical Sciences, Sanuki Kagawa, Japan. tshi@kph.bunri-u.ac.jp
authors.forename: T
authors.initials: T
authors.lastname: Shirahata
mesh_terms: D000818:Animals; D001683:Biological Clocks; D006372:Helix, Snails / Q000502:physiology*; D008954:Models, Biological; D009474:Neurons / Q000502:physiology*