The Instantaneous Effect and Its Mechanism of Transcranial Direct Current Stimulation on Working Memory Based on Delta and Gamma Band Electroencephalography Characteristics.

Pengyi Lu, Hongli Yu

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In one paragraph

Article in Brain sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

2 authors.

Pengyi LuState Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300130, China.

Hongli YuState Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300130, China.

Funding

National Natural Science Foundation of China 51877068Natural Science Foundation of Hebei Province H202202081Tianjin Municipal Science and Technology Program 22JCZXJC00070

6 · The paper itself

Abstract

backgroundWorking memory (WM) is a critical component of cognitive performance. Although transcranial direct current stimulation (tDCS) is a promising neuromodulation technique, its effect on working memory in healthy individuals remains unclear.

methodsIn this study, EEG signals were recorded from different groups (working memory group, tDCS group, and sham group) and analyzed using phase-amplitude coupling, power spectral density, and brain network analysis to investigate the effect and mechanism of tDCS on working memory tasks in healthy individuals.

resultsThe results showed that in the tDCS group, the power spectral density of the EEG was increased in the gamma band and decreased in the delta band, while the delta-gamma phase-amplitude coupling was also decreased during the working memory task. Meanwhile, brain network analysis indicated significant differences in the node degree and clustering coefficient between the active and sham stimuli.

conclusionsDespite the absence of immediate behavioral improvements, these results suggest that tDCS could significantly modulate working memory-related EEG activity.

Indexed as

brain networkelectroencephalographyphase–amplitude couplingpower spectral densitytranscranial direct current stimulationworking memory

Identifiers

PMID40563751

DOI10.3390/brainsci15060579

PMCPMC12190593

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LicenceCC BY

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.