Complex Oscillations in an Electrically Stimulated Membrane Model

نویسنده

  • E. J. Delgado
چکیده

Este artigo investiga, teoricamente, a dinâmica de um modelo de membrana sob estimulação elétrica externa. Este sistema mostra vários tipos de respostas oscilatórias no potencial da membrana, quando uma corrente sinoidal AC é superposta à corrente DC aplicada através da membrana. À medida que a frequência da corrente AC varia, este comportamento varia de oscilações periódicas, P1, até oscilações do tipo explosivas, através de regiões de quase-periodicidade. As séries temporais que apresentam estes comportamentos são caracterizadas usando métodos de Teoria de Sistemas Dinâmicos, a saber: mapas de retorno, expoentes de Lyapunov, espectro de potências e dimensão de capacidade. Os resultados são discutidos em relação a membranas biológicas sob condições similares.

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تاریخ انتشار 1999