Léa Caya-Bissonnette

Cellular Substrate of Eligibility Traces

The paper investigates synaptic eligibility traces in mice prefrontal cortex neurons, showing how calcium dynamics and molecular mechanisms enable delayed credit assignment for learning.

Temporal derivative computation in the dorsal raphe network revealed by an experimentally-driven augmented integrate-and-fire modeling framework

The paper uses an augmented integrate-and-fire model to show that the dorsal raphe network encodes both input intensity and its temporal derivative, with the derivative dominating during rapid input increases.

Nonlinear computation by a habenula-driven recurrent inhibitory network in the raphe

The paper identifies a slow serotonergic recurrent inhibitory network in the dorsal raphe nucleus that generates non-linear dynamics and winner-take-all computations, affecting reward-conditioned behavior.