Marielena Sosa

The paper introduces a platform for studying navigation in rats that combines free movement with controlled stimuli and rewards, revealing spatial coding in the medial entorhinal cortex.

This study shows that postsynaptic membrane fusion via Stx3 is essential for specific hippocampal computations like novelty processing and memory consolidation, but not for presynaptic representations.

The paper shows that hippocampal sequences adapt to reward locations, with reward-relative cells spanning task structure and increasing with experience.

The paper investigates how hippocampal spiking during sharp wave-ripples (SWRs) varies with experience, suggesting a mechanism for temporally flexible memory storage.

This study develops a state space model to analyze hippocampal replay events in rats, finding that most replay events contain spatially coherent content and often occur at real-world speeds.

The paper shows hippocampal neurons cycle between representations of alternative future locations at 8 Hz, driven by theta rhythm, and also represent heading direction alternatives.

The paper shows that dorsal and ventral hippocampus engage opposing networks in the nucleus accumbens during spatial-reward memory processing.