Neurodynamic correlates for the cross-frequency coupled transcranial alternating current stimulation during working memory performance
DC Field | Value | Language |
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dc.contributor.author | Kim, Seong-Eun | - |
dc.contributor.author | Kim, Hyun-Seok | - |
dc.contributor.author | Kwak, Youngchul | - |
dc.contributor.author | Ahn, Min-Hee | - |
dc.contributor.author | Choi, Kyung Mook | - |
dc.contributor.author | Min, Byoung-Kyong | - |
dc.date.accessioned | 2022-11-15T14:40:54Z | - |
dc.date.available | 2022-11-15T14:40:54Z | - |
dc.date.created | 2022-11-15 | - |
dc.date.issued | 2022-10-03 | - |
dc.identifier.issn | 1662-4548 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/145487 | - |
dc.description.abstract | Transcranial current stimulation is a neuromodulation technique used to modulate brain oscillations and, in turn, to enhance human cognitive function in a non-invasive manner. This study investigated whether cross-frequency coupled transcranial alternating current stimulation (CFC-tACS) improved working memory performance. Participants in both the tACS-treated and sham groups were instructed to perform a modified Sternberg task, where a combination of letters and digits was presented. Theta-phase/high-gamma-amplitude CFC-tACS was administered over electrode F3 and its four surrounding return electrodes (Fp1, Fz, F7, and C3) for 20 min. To identify neurophysiological correlates for the tACS-mediated enhancement of working memory performance, we analyzed EEG alpha and theta power, cross-frequency coupling, functional connectivity, and nodal efficiency during the retention period of the working memory task. We observed significantly reduced reaction times in the tACS-treated group, with suppressed treatment-mediated differences in frontal alpha power and unidirectional Fz-delta-phase to Oz-high-gamma-amplitude modulation during the second half of the retention period when network analyses revealed tACS-mediated fronto-occipital dissociative neurodynamics between alpha suppression and delta/theta enhancement. These findings indicate that tACS modulated top-down control and functional connectivity across the fronto-occipital regions, resulting in improved working memory performance. Our observations are indicative of the feasibility of enhancing cognitive performance by the CFC-formed tACS. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | FRONTIERS MEDIA SA | - |
dc.subject | DORSOLATERAL PREFRONTAL CORTEX | - |
dc.subject | UPPER ALPHA | - |
dc.subject | BRAIN OSCILLATIONS | - |
dc.subject | THETA-OSCILLATIONS | - |
dc.subject | PHASE SYNCHRONIZATION | - |
dc.subject | EEG ALPHA | - |
dc.subject | TASK | - |
dc.subject | HEALTHY | - |
dc.subject | INTELLIGENCE | - |
dc.subject | NETWORKS | - |
dc.title | Neurodynamic correlates for the cross-frequency coupled transcranial alternating current stimulation during working memory performance | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Min, Byoung-Kyong | - |
dc.identifier.doi | 10.3389/fnins.2022.1013691 | - |
dc.identifier.scopusid | 2-s2.0-85139952305 | - |
dc.identifier.wosid | 000871292700001 | - |
dc.identifier.bibliographicCitation | FRONTIERS IN NEUROSCIENCE, v.16 | - |
dc.relation.isPartOf | FRONTIERS IN NEUROSCIENCE | - |
dc.citation.title | FRONTIERS IN NEUROSCIENCE | - |
dc.citation.volume | 16 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | Y | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Neurosciences & Neurology | - |
dc.relation.journalWebOfScienceCategory | Neurosciences | - |
dc.subject.keywordPlus | DORSOLATERAL PREFRONTAL CORTEX | - |
dc.subject.keywordPlus | UPPER ALPHA | - |
dc.subject.keywordPlus | BRAIN OSCILLATIONS | - |
dc.subject.keywordPlus | THETA-OSCILLATIONS | - |
dc.subject.keywordPlus | PHASE SYNCHRONIZATION | - |
dc.subject.keywordPlus | EEG ALPHA | - |
dc.subject.keywordPlus | TASK | - |
dc.subject.keywordPlus | HEALTHY | - |
dc.subject.keywordPlus | INTELLIGENCE | - |
dc.subject.keywordPlus | NETWORKS | - |
dc.subject.keywordAuthor | neuromodulation | - |
dc.subject.keywordAuthor | nodal efficiency | - |
dc.subject.keywordAuthor | transcranial alternating current stimulation (tACS) | - |
dc.subject.keywordAuthor | working memory | - |
dc.subject.keywordAuthor | cross-frequency coupling (CFC) | - |
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