comunicación de congreso
Boundary integral formulation for the electrical response of a nerve to an extracellular stimulation
Fecha
2013Registro en:
10.1109/EMBC.2013.6610971
978-1-4577-0216-7
1558-4615
1094-687X
Autor
Henriquez Barraza, Fernando Jose
Jerez Hanckes, Carlos F.
Altermatt, Fernando R.
Institución
Resumen
We present a two-dimensional boundary integral formulation of nerve impulse propagation. A nerve impulse is a potential difference across the cellular membrane that propagates along the nerve fiber. The traveling transmembrane potential is produced by the transfer of ionic species between the intra- and extra-cellular mediums. This current flux across the membrane-composed of conduction, diffusion and capacitive terms- is regulated by passive and active mechanisms that are highly complicated to describe mathematically from a microscopic point of view. Based on the Hodgkin and Huxley axon model, we propose a well-posed integral formulation based on a quasi-static approximation amenable to time-stepping schemes and discuss first results.