Theta Gamma Coupling
Theta Gamma Coupling - Related Videos
11:37
Tuning in the Hippocampal Theta Band In Vitro: Methodologies for Recording from the Isolated Rodent Septohippocampal Circuit
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Cited by 4 •
2017
Here, we present a protocol for recording rhythmic neuronal network theta and gamma oscillations from an isolated whole hippocampal preparation. We describe the experimental steps from extraction of the hippocampus to details of field, unitary and whole-cell patch clamp recordings as well as optogenetic pacing of the theta rhythm.
09:35
Automatic Detection of Highly Organized Theta Oscillations in the Murine EEG
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Cited by 5 •
2017
Theta activity in the hippocampus is related to specific cognitive and behavioral stages. Here, we describe an analytical method to detect highly-organized theta oscillations within the hippocampus using a time-frequency (i.e., wavelet analysis)-based approach.
02:39
In Vitro Recording of Theta Oscillations in the Mouse Hippocampus
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2025
This video demonstrates the recording of rhythmic neuronal network activity, also known as theta oscillations, in an isolated hippocampus. Electrodes are inserted into various layers and spatial positions to detect and analyze theta oscillations. This shows the unique neuronal compositions and the connectivity of the neuronal network across different layers of the hippocampus.
02:11
Selective Manipulation of Theta Oscillations in a Mouse Model
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2025
This video demonstrates a protocol to modulate theta oscillations in a genetically engineered mouse model with light-sensitive ion channels in its GABAergic medial septum neurons. By delivering light pulses to the hippocampus, the protocol aims to synchronize neuronal activity and generate theta oscillations, which are recorded as local field potentials.
01:32
Evoked Gamma Oscillations for the Treatment of Alzheimer’s Disease
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2025
Begin with a patient diagnosed with Alzheimer’s disease, wearing a gamma therapy stimulation device.The device consists of an eye-set and headphones.Using the controller, activate the device to deliver auditory and visual stimulation.The visual component emits flickering light at a gamma frequency, while the auditory component produces synchronized sound pulses.Gamma oscillations are brain waves generated by synchronized neuronal firing, crucial for cognition and memory.In AD, these...
FAQs
Theta phase provides a recurring temporal framework that can determine when gamma-frequency activity becomes stronger or when gamma-related firing bursts occur. This timing relationship allows activity at a slower rhythm to organize faster neural events rather than treating each frequency independently. Studying the relationship helps researchers examine how neural circuits coordinate computations across different temporal scales.
The position of gamma activity within the theta cycle can indicate when particular circuit operations are coordinated. If gamma bursts consistently occur at selected theta phases, the pattern may reveal structured organization of neural processing rather than unrelated fluctuations. This relationship is therefore relevant for examining how brain networks support information processing, working memory, navigation, learning, and episodic memory.
The interaction connects the slower organization of theta activity with faster gamma events, providing a way to examine whether neural processing is coordinated across timescales. Strong or systematic coupling may indicate that network activity follows an organized temporal relationship. Researchers can use this pattern to investigate how distributed or local circuit activity contributes to complex cognitive functions.
Changes in the coupling relationship may reflect altered coordination among brain networks. Because researchers examine this interaction in relation to information processing, memory, learning, and navigation, differences in coupling can help identify changes in how those networks organize activity. Such findings may also provide insight into disruptions associated with neurological and psychiatric conditions, without treating coupling alone as a complete explanation.
Researchers investigate theta gamma coupling with electrophysiological recordings followed by signal analysis. The recordings provide neural activity containing slower and faster oscillatory components, while analysis examines their relationship, including whether gamma amplitude or timing varies with theta phase. This approach allows investigators to characterize temporal coordination in neural circuits during studies of cognition and behavior.
Signal analysis can characterize whether gamma activity is organized according to particular phases of the theta cycle and whether that relationship changes across conditions. The resulting patterns help researchers evaluate coordination between slower and faster activity rather than focusing on a single oscillation. These measurements can then be related to processes such as working memory, navigation, learning, and episodic memory.
Theta gamma coupling is examined in research on information processing, working memory, navigation, learning, and episodic memory. These areas share an interest in how neural circuits arrange activity over time. Researchers may also compare coupling patterns when investigating neurological or psychiatric disruptions, using changes in the interaction to explore how altered network coordination relates to brain function.