Berlin 2018 – wissenschaftliches Programm

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BP: Fachverband Biologische Physik

BP 34: Neuroscience

BP 34.5: Vortrag

Donnerstag, 15. März 2018, 16:15–16:30, H 1058

Nonlinear response of noisy neurons — •Benjamin Lindner and Sergej Voronenko — Humboldt Universität Berlin

We study the firing rate modulation of stochastic neurons in response to mixtures of periodic signals. For the leaky integrate-and-fire neuron with white Gaussian background noise, we calculate analytically the second order (weakly nonlinear) response of the instantaneous firing rate. We inspect several situations in which the nonlinear contributions shape the response significantly and a purely linear analysis would fail qualitatively. We demonstrate that similar effects are observed for a biophysically more realistic system, the NaK Izhikevich model endowed with channel noise.

Ref.: Voronenko & Lindner New J. Phys. 19, 033038 (2017)