Theta-Gamma Coupling and Working Memory in Alzheimer’s Dementia and Mild Cognitive Impairment [PDF]
Frontiers in Aging Neuroscience, 2018 Working memory deficits are common among individuals with Alzheimer’s dementia (AD) or mild cognitive impairment (MCI). Yet, little is known about the mechanisms underlying these deficits.
Michelle S. Goodman +40 more
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Theta-gamma coupling: nonlinearity as a universal cross-frequency coupling mechanism [PDF]
Frontiers in Behavioral NeuroscienceThe Cross Frequency Coupling (CFC) phenomenon is defined as a statistical correlation between characteristic parameters neural oscillations. This study demonstrates and analyzes the nonlinear mechanism of the CFC, with a focus on the coupling between ...
Alex Sheremet, Yu Qin
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Theta-gamma coupling emerges from spatially heterogeneous cholinergic neuromodulation. [PDF]
PLoS Computational Biology, 2021 Theta and gamma rhythms and their cross-frequency coupling play critical roles in perception, attention, learning, and memory. Available data suggest that forebrain acetylcholine (ACh) signaling promotes theta-gamma coupling, although the mechanism has ...
Yihao Yang +5 more
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Is Cortical Theta-Gamma Phase-Amplitude Coupling Memory-Specific?
Brain Sciences, 2022 One of the proposed neural mechanisms involved in working memory is coupling between the theta phase and gamma amplitude. For example, evidence from intracranial recordings shows that coupling between hippocampal theta and cortical gamma oscillations ...
Orestis Papaioannou +6 more
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Sub-second dynamics of theta-gamma coupling in hippocampal CA1 [PDF]
eLife, 2019 Oscillatory brain activity reflects different internal brain states including neurons’ excitatory state and synchrony among neurons. However, characterizing these states is complicated by the fact that different oscillations are often coupled, such as ...
Lu Zhang +3 more
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Frontiers in Human Neuroscience, 2010 The phase of ongoing theta (4-8 Hz) and alpha (8-12 Hz) electrophysiological oscillations is coupled to high gamma (80-150 Hz) amplitude, which suggests that low frequency oscillations modulate local cortical activity. While this phase-amplitude coupling
Bradley Voytek +7 more
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Hippocampal-prefrontal theta-gamma coupling during performance of a spatial working memory task [PDF]
Nature Communications, 2017 Theta- and gamma-frequency oscillatory synchrony correlates with spatial working memory performance. Here the authors report increases in theta-gamma cross-frequency coupling as a compensatory mechism associated with better working memory performance in ...
Makoto Tamura +4 more
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Theta-gamma-coupling as predictor of working memory performance in young and elderly healthy people [PDF]
Molecular BrainThe 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.
Mohammed Abubaker +4 more
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Theta power and theta‐gamma coupling support long‐term spatial memory retrieval [PDF]
Hippocampus, 2021 Umesh Vivekananda +2 more
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Theta-gamma phase-amplitude coupling: physiological basics, analysis methods, and perspectives of translation into clinical practice [PDF]
Анналы клинической и экспериментальной неврологии, 2022 Studying rhythmic neural synchronization (cross-frequency coupling in various ranges) is an emerging topic in present-day neurophysiology. One of the best-studied cross-frequency couplings is theta-gamma phase-amplitude coupling that contributes to the ...
Alexandra G. Poydasheva +6 more
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