Cisco Webex, Online seminar
(線上演講 Cisco Webex)
Dynamics of Excitable Cells: Spike-adding Phenomena in Action
Roberto Barrio (University of Zaragoza)
Abstract
In this talk I review the dynamics of action potentials of some electrically excitable cells: neurons and cardiac muscle cells. Bursting, following a fast-slow dynamics denomination, is the most characteristic behavior of these dynamical systems, and the number of spikes can vary due to the spike-adding phenomenon. Using analytical and numerical methods, focusing on the paradigmatic 3D Hindmarsh-Rose neuronal model, I present a review of recent results on the global organization of the parameter space of neuronal models with bursting regions occurring between saddle-node and homoclinic bifurcations (fold/hom bursting). I provide a generic overview of the different bursting regimes that appear in the parametric phase space of the model and the bifurcations among them. These techniques are applied in two realistic frameworks: changes in insect movement and the appearance of Early Afterdepolarizations in cardiac dynamics.
Meeting number (access code): 2518 893 9437
Meeting password: bfY8DQgW3D7 (23983749 when dialing from a phone or video system)
Organizers: Chueh-Hsin Chang (CCU), Jia-Yuan Dai (NTHU), Bo-Chih Huang (CCU), Chih-Chiang Huang (CCU), Alejandro López-Nieto (NTU), Chang-Hong Wu (NYCU)
