Regulating noise-induced spiking using feedback

Abstract

We report successful manipulation of the noise provoked spiking behavior using delayed feedback control. Experiments were performed in a three electrode electrochemical cell under potentiostatic conditions. The uncontrolled system exhibited noise invoked oscillations whose regularity was quantified using normalized variance (NV). Superimposing delayed feedback, for appropriate values of delay (tau), an enhancement in the regularity of the spike sequence was attained. Numerical simulations corroborated experimental observations.