Understanding how excitatory (E) and inhibitory (I) inputs are integrated by neurons requires
monitoring their subthreshold behavior. We probed the subthreshold dynamics using …

In vivo intracellular recordings of hippocampal neurons reveal the occurrence of fast events
of small amplitude called spikelets or fast prepotentials. Because intracellular recordings …

Introduction The mammalian space circuit contains several functionally specialized cell
types, such as place cells in the hippocampus and grid cells, head direction cells, and …

INTRODUCTION Perceptual experiences in mammals may arise from patterns of neural
circuit activity in cerebral cortex. For example, primary visual cortex (V1) is causally capable …

The hippocampus and entorhinal cortex play a pivotal role in spatial learning and memory.
The two forebrain regions are highly interconnected via excitatory pathways. Using …

Information processing in neuronal networks involves the recruitment of selected neurons
into coordinated spatiotemporal activity patterns. This sparse activation results from …

The hippocampus is critical for spatial learning and memory. Hippocampal neurons in
awake animals exhibit place field activity that encodes current location, as well as sharp …

The origin of the spatial receptive fields of hippocampal place cells has not been
established. A hippocampal CA1 pyramidal cell receives thousands of synaptic inputs …

Cell assembly sequences during learning are “replayed” during hippocampal ripples and
contribute to the consolidation of episodic memories. However, neuronal sequences may …

The behavior of immature cortical networks in vivo remains largely unknown. Using multisite
extracellular and patch-clamp recordings, we observed recurrent bursts of synchronized …