"In their seminal works on squid giant axons, Hodgkin, and Huxley approximated the membrane leak current as Ohmic, i.e., linear, since in their preparation, sub-threshold current rectification due to the influence of ionic concentration is negligible. Most studies on mammalian neurons have made the same, largely untested, assumption. Here we show that the membrane time constant and input resistance of mammalian neurons (when other major voltage-sensitive and ligand-gated ionic currents are discounted) varies non-linearly with membrane voltage, following the prediction of a Goldman-Hodgkin-Katz-based passive membrane model. ..." (see paper for details and more).
Cell Type(s): Cerebellum Purkinje GABA cell; Hodgkin-Huxley neuron
Currents: I K,leak; I Cl, leak
Simulation Environment: NEURON; Python
Implementer(s): Huang, Shiwei [shiweihuang at outlook.com]; Hong, Sungho [shhong at oist.jp]
References:
Huang S, Hong S, De Schutter E. (2015). Corrigendum: Non-linear leak currents affect mammalian neuron physiology. Frontiers in cellular neuroscience. 9 [PubMed]
Huang S, Hong S, De Schutter E. (2015). Non-linear leak currents affect mammalian neuron physiology. Frontiers in cellular neuroscience. 9 [PubMed]