人类海马体中缓慢的Theta-gamma相幅耦合支持新的情景记忆的 …
人类海马体中缓慢的Theta-gamma相幅耦合支持新的情景记忆的形成. 相幅耦合 (PAC)被认为是一种协调脑区信息加工的神经机制。. 在这里，我们试图描述在形成新的情景记忆的过程中， 在人类海马体、颞叶和额叶皮质中的PAC。. 56名神经外科患者学习和回忆单词列表 ...
Control of working memory by phase–amplitude coupling of …
2024年4月17日 · Here we show that interactions of frontal control and hippocampal persistent activity are coordinated by theta–gamma phase–amplitude coupling (TG-PAC). We recorded single neurons in the human...
Theta-gamma coupling binds visual perceptual features in an …
2018年12月6日 · Theta-gamma PAC was assessed between individual theta phase across the mid-frontal and -central clusters with the 50–80 Hz gamma amplitude at each electrode.
Theta-gamma-coupling as predictor of working memory …
1 天前 · Research indicates an interaction between theta and gamma oscillations through PAC. This means that the amplitude of the gamma oscillations is modulated by the phase of the theta oscillations. It is assumed that this coupling plays a crucial role in the organization and coordination of neuronal activity during WM tasks [57, 58, 65, 68]. This ...
Phase–Amplitude Coupling, Mental Health and Cognition: …
2021年3月26日 · Theta–gamma PAC (one of the most prominent types of PAC) has been recorded within multiple brain regions, but specifically in the hippocampal region and prefrontal cortex during working memory tasks. These results have been replicated in adolescents.
Control of working memory by phase-amplitude coupling of …
Here we show that interactions of frontal control and hippocampal persistent activity are coordinated by theta-gamma phase-amplitude coupling (TG-PAC). We recorded single neurons in the human medial temporal and frontal lobe while patients maintained multiple items in their working memory.
Phase-Amplitude Coupling: A General Mechanism for
2018年1月3日 · The most-studied example is theta-gamma PAC (Figure 1 C), which is observed during wakefulness in hippocampus and neocortex during working memory, information encoding, and retrieval (Fell and Axmacher, 2011) and linked to theta-phase-dependent processes of synaptic potentiation and depotentiation (Huerta and Lisman, 1995).
Working memory revived in older adults by synchronizing ... - Nature
2019年4月8日 · During working-memory maintenance, a specific form of cross-frequency coupling called theta (4–8 Hz)–gamma (>25Hz) phase–amplitude coupling (PAC), in which the amplitude of gamma rhythms is...
Cross-regional phase amplitude coupling supports the encoding …
Phase amplitude coupling (PAC) between theta and gamma oscillations represents a key neurophysiological mechanism that promotes the temporal organization of oscillatory activity. For this reason, PAC has been implicated in item/context integration for episodic processes, including coordinating activ ….
2024年3月24日 · This study aims to investigate the neurophysiological function of theta-gamma PAC in the human hippocampus during a multi-item working memory task and characterize its association with performance.