Novel Types of Bistability in a Model of a Bursting Pacemaker Neuron RPa1 from the Snail, Helix pomatia

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Abstract

The RPal 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 RPal.

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Acknowledgement

The author would like to thank Enago (www.enago.jp) for the English language review.

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Correspondence to T. Shirahata.

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Shirahata, T. Novel Types of Bistability in a Model of a Bursting Pacemaker Neuron RPa1 from the Snail, Helix pomatia. BIOLOGIA FUTURA 64, 131–135 (2013). https://doi.org/10.1556/ABiol.64.2013.1.12

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Keywords

  • Bursting
  • Helix pomatia
  • model
  • bistability
  • period-doubling