Jan Grewe

Modelling individual ampullary afferents in two species of gymnotiform fish using simulation-based inference

The paper develops a mechanistic model of ampullary electroreception in two electric fish species using simulation-based inference to capture response properties and spectral characteristics.

Spike generation in electroreceptor afferents introduces additional spectral response components by weakly nonlinear interactions

The paper identifies nonlinear spectral response components in electroreceptor afferents under weakly nonlinear conditions, showing interactions between stimulus frequencies and baseline firing rates.

Bursts boost nonlinear encoding in electroreceptor afferents

The paper shows bursts enhance nonlinear encoding in electroreceptor afferents, improving detection of weak signals in complex environments.

Receptive field sizes and neuronal encoding bandwidth are constrained by axonal conduction delays.

The paper analyzes how axonal conduction delays affect stimulus encoding in neuronal populations, showing that receptive field sizes and population sizes are constrained by these delays.

Beat encoding at mistuned octaves within single sensory neurons

The paper investigates how single sensory neurons encode beat-like amplitude modulations across a range of difference frequencies in electric fish, revealing a novel mechanism involving threshold operations with exponentiation.

Simultaneous spike-time locking to multiple frequencies

The paper investigates how neurons can lock their firing to multiple frequencies and shows that this phenomenon provides a richer sensory representation than previously assumed.

Sensory tuning does not match behavioral relevance of communication signals in free-living weakly electric fish

The paper quantifies sensory scenes in free-living weakly electric fish and finds that sensory neuron tuning does not align with the frequency of behaviorally relevant communication signals.