Emergent Central Pattern Generator Behavior in Gap-Junction-Coupled Hodgkin-Huxley Style Neuron Model

Autor: Kyle G. Horn, Irene C Solomon, Heraldo Memelli
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Computational Intelligence and Neuroscience, Vol 2012 (2012)
Computational Intelligence and Neuroscience
ISSN: 1687-5265
DOI: 10.1155/2012/173910
Popis: Most models of central pattern generators (CPGs) involve two distinct nuclei mutually inhibiting one another via synapses. Here, we present a single-nucleus model of biologically realistic Hodgkin-Huxley neurons with random gap junction coupling. Despite no explicit division of neurons into two groups, we observe a spontaneous division of neurons into two distinct firing groups. In addition, we also demonstrate this phenomenon in a simplified version of the model, highlighting the importance of afterhyperpolarization currents (I(AHP)) to CPGs utilizing gap junction coupling. The properties of these CPGs also appear sensitive to gap junction conductance, probability of gap junction coupling between cells, topology of gap junction coupling, and, to a lesser extent, input current into our simulated nucleus.
Databáze: OpenAIRE