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

Recent work continues to place cholinergic circuits at center stage for normal executive and
mnemonic functioning and provides compelling evidence that the loss of cholinergic …

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 …

Theta oscillations in the limbic system depend on the integrity of the medial septum. The
different populations of medial septal neurons (cholinergic and GABAergic) are assumed to …

The theta rhythm organizes neural activity across hippocampus and entorhinal cortex. A role
for theta oscillations in spatial navigation is supported by half a century of research reporting …

Assessing the behavioral relevance of the hippocampal theta rhythm has proven difficult,
due to a shortage of experiments that selectively manipulate phase-specific information …

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

Hippocampal theta oscillations have been implicated in spatial memory function in both
rodents and humans. What is less clear is how hippocampal theta interacts with higher …

The brain supports adaptive behavior by generating predictions, learning from errors, and
updating memories to incorporate new information. Prediction error, or surprise, triggers …

Hippocampal theta oscillations orchestrate faster beta-to-gamma oscillations facilitating the
segmentation of neural representations during navigation and episodic memory. Supra …