Johanni Brea

Remembering the "When": Hebbian Memory Models for the Time of Past Events

The paper develops Hebbian memory models to simulate how neural mechanisms enable remembering the time of past events, showing multiple biologically plausible implementations.

Learning is a fundamental source of behavioral individuality

The paper shows that learning increases behavioral individuality in genetically identical flies, distinguishing it from genetic and environmental factors.

Two-factor synaptic consolidation reconciles robust memory with pruning and homeostatic scaling

This paper proposes a computational model of memory consolidation that integrates replay and two-factor synapses to explain experimental observations of homeostatic scaling, pruning, and memory robustness.

Surprise: a unified theory and experimental predictions

The paper identifies 16 mathematical definitions of surprise, classifies them into four categories, and proposes a combined definition with experimental predictions.