Controlling collective activity in a population of neurons
When: September 6, 2006 (Wed), 02:00PM to 04:00PM
Speaker: Dr. Michael Rosenblum, Potsdam University
This event is part of the Biophysics Seminar Series. 1:30 SCI 352
Abstract: We suggest a method for suppression of synchrony in a globally or randomly coupled oscillator network. The method is based on the time-delayed feedback via the mean field. Having in mind possible applications for suppression of pathological
rhythms in neural ensembles, we present numerical results for different models of coupled spiking and bursting neurons. We present a theory, based on the consideration of the synchronization transition as a Hopf bifurcation.
Next, we consider the main factors of imperfection of the control scheme and their influence on the suppression efficiency. Further, with the help of a realistic model of synaptically coupled population of inhibitory and excitatory neurons, we demonstrate the potential of the suppression scheme for neurophysiological applications.