Over and above frequency: Gamma oscillations as units of neural circuit operations

A Fernandez-Ruiz, A Sirota, V Lopes-dos-Santos… - Neuron, 2023 - cell.com
Summary Gamma oscillations (∼ 30–150 Hz) are widespread correlates of neural circuit
functions. These network activity patterns have been described across multiple animal …

Local field potentials: myths and misunderstandings

O Herreras - Frontiers in neural circuits, 2016 - frontiersin.org
The intracerebral local field potential (LFP) is a measure of brain activity that reflects the
highly dynamic flow of information across neural networks. This is a composite signal that …

Gamma rhythm communication between entorhinal cortex and dentate gyrus neuronal assemblies

A Fernández-Ruiz, A Oliva, M Soula, F Rocha-Almeida… - Science, 2021 - science.org
INTRODUCTION Learning induces a dynamic reorganization of brain circuits but the
neuronal mechanisms underlying this process are not well understood. Interregional gamma …

Associative and predictive hippocampal codes support memory-guided behaviors

C Liu, R Todorova, W Tang, A Oliva, A Fernandez-Ruiz - Science, 2023 - science.org
Episodic memory involves learning and recalling associations between items and their
spatiotemporal context. Those memories can be further used to generate internal models of …

Entorhinal-CA3 dual-input control of spike timing in the hippocampus by theta-gamma coupling

A Fernández-Ruiz, A Oliva, GA Nagy, AP Maurer… - Neuron, 2017 - cell.com
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 …

Theta phase segregation of input-specific gamma patterns in entorhinal-hippocampal networks

EW Schomburg, A Fernández-Ruiz, K Mizuseki… - Neuron, 2014 - cell.com
Precisely how rhythms support neuronal communication remains obscure. We investigated
interregional coordination of gamma oscillations using high-density electrophysiological …

Toward reflective spiking neural networks exploiting memristive devices

VA Makarov, SA Lobov, S Shchanikov… - Frontiers in …, 2022 - frontiersin.org
The design of modern convolutional artificial neural networks (ANNs) composed of formal
neurons copies the architecture of the visual cortex. Signals proceed through a hierarchy …

Different theta frameworks coexist in the rat hippocampus and are coordinated during memory-guided and novelty tasks

VJ López-Madrona, E Pérez-Montoyo… - Elife, 2020 - elifesciences.org
Hippocampal firing is organized in theta sequences controlled by internal memory
processes and by external sensory cues, but how these computations are coordinated is not …

Reverse engineering of feedforward cortical-Hippocampal microcircuits for modelling neural network function and dysfunction

KS Hanssen, N Winter-Hjelm, SN Niethammer… - Scientific Reports, 2024 - nature.com
Engineered biological neural networks are indispensable models for investigation of neural
function and dysfunction from the subcellular to the network level. Notably, advanced …

[HTML][HTML] The unreasonable effectiveness of small neural ensembles in high-dimensional brain

AN Gorban, VA Makarov, IY Tyukin - Physics of life reviews, 2019 - Elsevier
Complexity is an indisputable, well-known, and broadly accepted feature of the brain.
Despite the apparently obvious and widely-spread consensus on the brain complexity …