Hippocampal-prefrontal theta-gamma coupling during performance …
2017年12月19日 — Here we report that theta–slow gamma coupling between the hippocampus and medial prefrontal cortex (mPFC) is augmented in a genetic mouse model of cognitive dysfunction. This increased...
人类海马体中缓慢的Theta-gamma相幅耦合支持新的情景记忆的 …
当Gamma振荡与慢theta振荡的波谷耦合时，海马PAC增加. 动物记录和计算模型表明，特定阶段的theta-gamma耦合影响基于膜电位激活和相关LTP的学习。
Theta-gamma-coupling as predictor of working memory …
1 天前 — The relationship between working memory (WM) and neuronal oscillations can be studied in detail using brain stimulation techniques, which provide a method for modulating these oscillations and thus influencing WM. The endogenous coupling between the amplitude of gamma oscillations and the phase of theta oscillations is crucial for cognitive control. Theta/gamma peak-coupled transcranial ...
Theta-gamma coupling binds visual perceptual features in an …
2018年12月6日 — Recent evidence suggests a specific role for the theta rhythm (4–8 Hz) in mnemonic processes and the coupling between the theta and the gamma rhythm (40–120 Hz) in ordering and binding ...
Frontiers | Modeling the contribution of theta-gamma coupling …
2024年5月24日 — A compromised precision of theta-gamma coupling has also been postulated as a possible cause for the decline in associative memory in old age (Karlsson et al., 2022). The availability of synthetic neurocomputational models of theta-gamma role in memory can represent an innovative and promising tool for helping the mechanistic understanding of ...
The Theta-Gamma Neural Code: Neuron - Cell Press
Theta and gamma frequency oscillations occur in the same brain regions and interact with each other, a process called cross-frequency coupling. Here, Lisman and Jensen review evidence in support of the hypothesis that the dual oscillations form a code for representing multiple items in an ordered way.
Hippocampus, Theta, Gamma, and Cross-Frequency Coupling
2022年1月1日 — Theta–Gamma Coupling. Theta–gamma coupling can be grouped into two forms: (1) phase–amplitude coupling, which refers to the phenomenon where the phase of the theta rhythm modulates the amplitude of the gamma frequency (Fig. 3), and (2) phase–phase coupling, where the phases of gamma and theta covary due to gamma waves occurring at ...
Theta-gamma coupling and ordering information: a stable brain …
Prefrontal theta-gamma coupling (TGC) is a neurophysiologic measure associated with ordering of information during the performance of a working memory task (N-back).
Theta–gamma coupling and ordering information: a stable …
2020年7月18日 — Theta–gamma coupling (TGC) is a form of cross-frequency coupling whereby high-frequency gamma (30–50 Hz) oscillations are modulated by low-frequency theta (4–8 Hz) oscillations .
Working memory revived in older adults by synchronizing ... - Nature
2019年4月8日 — Here we show a core feature of cognitive decline—working-memory deficits—emerges from disconnected local and long-range circuits instantiated by theta–gamma phase–amplitude coupling in ...