ArticleFrontiers in aging neuroscience2025
Cross-frequency neuromodulation: leveraging theta-gamma coupling for cognitive rehabilitation in MCI patients.
Article in Frontiers in aging neuroscience, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Mapping EEG Metrics to Human Affective and Cognitive Models: An Interdisciplinary Scoping Review from a Cognitive Neuroscience Perspective.Biomimetics (Basel, Switzerland) · 2025Review
- Enhancing working memory in MCI: Modulating alpha-gamma coupling and gamma oscillations via rTMS.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025Article
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Authors and funding
12 authors.
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Abstract
Background: Theta-gamma coupling (TGC) plays a critical role in working memory (WM) processing, yet it is often dysregulated in mild cognitive impairment (MCI). While gamma activity is known to support cognitive functions, excessive gamma activity in MCI may impair WM. This study investigates how repetitive transcranial magnetic stimulation (rTMS) modulates gamma activity by regulating TGC to enhance WM in MCI patients. Objectives: This study aims to explore the effects of rTMS on WM by targeting TGC and reducing occipital gamma activity under varying WM loads. Methods: We recruited 34 participants, including 20 MCI patients and 14 healthy elderly controls (HC), from Shanghai Tongji Hospital. All participants received a 1 week intervention of 10 Hz rTMS targeting the left dorsolateral prefrontal cortex (DLPFC). Gamma power and TGC were measured using electroencephalography (EEG), and WM performance (accuracy, capacity, reaction time) was assessed through a visual WM paradigm. Results: The rTMS intervention significantly reduced gamma power in left occipital region, correlating with improved WM performance (enhanced accuracy, capacity, and faster reaction time). Changes in TGC between left frontal theta and occipital gamma oscillations were significantly associated with WM performance, indicating a neurocognitive link. Conclusion: This study highlights rTMS as a non-invasive tool for enhancing WM by modulating TGC and reducing gamma power. These findings suggest a promising strategy for improving cognitive function in MCI, with significant clinical implications for cognitive optimization and therapeutic interventions.
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