Over and above frequency: Gamma oscillations as units of neural circuit operations
Summary Gamma oscillations (∼ 30–150 Hz) are widespread correlates of neural circuit
functions. These network activity patterns have been described across multiple animal …
functions. These network activity patterns have been described across multiple animal …
Network abnormalities and interneuron dysfunction in Alzheimer disease
The function of neural circuits and networks can be controlled, in part, by modulating the
synchrony of their components' activities. Network hypersynchrony and altered oscillatory …
synchrony of their components' activities. Network hypersynchrony and altered oscillatory …
Nucleus reuniens transiently synchronizes memory networks at beta frequencies
M Jayachandran, TD Viena, A Garcia, AV Veliz… - Nature …, 2023 - nature.com
Episodic memory-based decision-making requires top-down medial prefrontal cortex and
hippocampal interactions. This integrated prefrontal-hippocampal memory state is thought to …
hippocampal interactions. This integrated prefrontal-hippocampal memory state is thought to …
Hippocampal sharp wave‐ripple: A cognitive biomarker for episodic memory and planning
G Buzsáki - Hippocampus, 2015 - Wiley Online Library
Sharp wave ripples (SPW‐Rs) represent the most synchronous population pattern in the
mammalian brain. Their excitatory output affects a wide area of the cortex and several …
mammalian brain. Their excitatory output affects a wide area of the cortex and several …
Rhythms of the hippocampal network
LL Colgin - Nature Reviews Neuroscience, 2016 - nature.com
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 …
wave–ripples and gamma. These rhythms are defined by their frequencies, they have …
Hippocampal GABAergic inhibitory interneurons
KA Pelkey, R Chittajallu, MT Craig… - Physiological …, 2017 - journals.physiology.org
In the hippocampus GABAergic local circuit inhibitory interneurons represent only~ 10–15%
of the total neuronal population; however, their remarkable anatomical and physiological …
of the total neuronal population; however, their remarkable anatomical and physiological …
Brain oscillations and the importance of waveform shape
Oscillations are a prevalent feature of brain recordings. They are believed to play key roles
in neural communication and computation. Current analysis methods for studying neural …
in neural communication and computation. Current analysis methods for studying neural …
Optogenetic gamma stimulation rescues memory impairments in an Alzheimer's disease mouse model
Abstract Slow gamma oscillations (30–60 Hz) correlate with retrieval of spatial memory.
Altered slow gamma oscillations have been observed in Alzheimer's disease. Here, we use …
Altered slow gamma oscillations have been observed in Alzheimer's disease. Here, we use …
The origin of extracellular fields and currents—EEG, ECoG, LFP and spikes
Neuronal activity in the brain gives rise to transmembrane currents that can be measured in
the extracellular medium. Although the major contributor of the extracellular signal is the …
the extracellular medium. Although the major contributor of the extracellular signal is the …
[HTML][HTML] The theta-gamma neural code
JE Lisman, O Jensen - Neuron, 2013 - cell.com
Theta and gamma frequency oscillations occur in the same brain regions and interact with
each other, a process called cross-frequency coupling. Here, we review evidence for the …
each other, a process called cross-frequency coupling. Here, we review evidence for the …