Summary Gamma oscillations (∼ 30–150 Hz) are widespread correlates of neural circuit
functions. These network activity patterns have been described across multiple animal …

The hippocampal local field potential (LFP) shows three major types of rhythms: theta, sharp
wave–ripples and gamma. These rhythms are defined by their frequencies, they have …

Recent studies have revealed the existence of hippocampal neurons that fire at successive
moments in temporally structured experiences. Several studies have shown that such …

Gamma oscillations (∼ 25–100 Hz) are believed to play a role in cognition. Accordingly,
aberrant gamma oscillations have been observed in several cognitive disorders, including …

Theta-gamma phase coupling and spike timing within theta oscillations are prominent
features of the hippocampus and are often related to navigation and memory. However, the …

Precisely how rhythms support neuronal communication remains obscure. We investigated
interregional coordination of gamma oscillations using high-density electrophysiological …

Hippocampal information processing is discretized by oscillations, and the ensemble activity
of place cells is organized into temporal sequences bounded by theta cycles. Theta …

Neural oscillations have been measured and interpreted in multitudinous ways, with a
variety of hypothesized functions in physiology, information processing and cognition. Much …

Highlights•Theta–gamma coupling supports memory processes in the entorhinal–
hippocampal network.•Theta-modulated slow gamma may promote memory retrieval.•Theta …

Theta oscillations reflect rhythmic inputs that continuously converge to the hippocampus
during exploratory and memory-guided behavior. The theta-nested operations that organize …