The hippocampal cognitive map is thought to be driven by distal visual cues and self-motion
cues. However, other sensory cues also influence place cells. Hence, we measured rat …

The phase of spikes of hippocampal pyramidal cells relative to the local field θ oscillation
shifts forward (“phase precession”) over a full θ cycle as the animal crosses the cell's …

The hippocampus is critical to remembering the flow of events in distinct experiences and, in
doing so, bridges temporal gaps between discontiguous events. Here, we report a robust …

Episodic memory retrieval relies on the recovery of neural representations of waking
experience. This process is thought to involve a communication dynamic between the …

The activity of ensembles of hippocampal place cells represents a hallmark of an animal's
spatial experience. The neuronal mechanisms that enable the rapid expression of novel …

The mammalian cerebral cortex supports cognitive functions such as sensorimotor
integration, memory, and social behaviors. Normal brain function relies on a diverse set of …

Hippocampal replays have been demonstrated to play a crucial role in memory. Chains of
ripples (ripple bursts) in CA1 have been reported to co-occur with long-range place cell …

The hippocampus is crucial for spatial memory formation, yet it does not store long-lasting
memories. By combining functional brain imaging and region-specific neuronal inactivation …

Hippocampal cell assemblies coding for past, present and future events form theta-timescale
(∼ 100 ms) sequences that represent spatio-temporal episodes. However, the underlying …

How the brain stores a sequence in memory remains largely unknown. We investigated the
neural code underlying sequence working memory using two-photon calcium imaging to …