Interacting slow and fast dynamics in precise spiking-bursting neurons

  • Authors:
  • Fabiano Baroni;Joaquin J. Torres;Pablo Varona

  • Affiliations:
  • Grupo de Neurocomputación Biológica (GNB), Dpto. de Ingeniería Informática, Escuela Politécnica Superior, Universidad Autónoma de Madrid, Madrid, Spain;Departamento de Electromagnetismo y Física de la Materia, Universidad de Granada, Granada, Spain;Grupo de Neurocomputación Biológica (GNB), Dpto. de Ingeniería Informática, Escuela Politécnica Superior, Universidad Autónoma de Madrid, Madrid, Spain

  • Venue:
  • IWINAC'05 Proceedings of the First international conference on Mechanisms, Symbols, and Models Underlying Cognition: interplay between natural and artificial computation - Volume Part I
  • Year:
  • 2005

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Abstract

We have explored the role of the interaction of slow and fast intracellular dynamics in generating precise spiking-bursting activity in a model of the heartbeat central pattern generator of the leech. In particular we study the effect of calcium-dependent currents on the neural signatures generated in the circuit. These neural signatures are cell-specific interspike intervals in the spiking-bursting activity of each neuron. Our results show that the slow dynamics of intracelullar calcium concentration can regulate the precision and shape of the neural signatures.