Speaker
Description
The fluctuations and the response of stochastic systems are related by fluctuation-dissipation theorems or, equivalently, fluctuation-response relations (FRRs). Originally introduced for systems in thermodynamic equilibrium, generalizations of such relations for non-equilibrium situations have been derived and studied since the 1970's and are particularly appealing for biological systems. In my talk I report a new class of FRRs for spiking neurons that relate the pronounced fluctuations of spontaneous neural firing to their average response to sensory stimuli, i.e. to the processing of sensory information that is the raison d'etre of neural systems. Extensions of FRRs to neurons with a finite spike shape, with shot noise, or to groups of neurons that driven by common stimuli are also discussed.
Refs.:
B. Lindner 129, 198101 Phys. Rev. Lett. (2022);
F. Puttkammer and B. Lindner Biol. Cyb. 118, 7 (2024)
J. Stubenrauch & B. Lindner Phys. Rev. X 14, 041047 (2024)
