Neural Coupling between Interhemispheric and Frontoparietal Functional Connectivity during Semantic Processing
Interhemispheric and frontoparietal functional connectivity have been reported to increase during explicit information processing. However, it is unclear how and when interhemispheric and frontoparietal functional connectivity interact during explicit semantic processing. Here, we tested the neural...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-11-01
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| Series: | Brain Sciences |
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| Online Access: | https://www.mdpi.com/2076-3425/13/11/1601 |
| _version_ | 1797459942740852736 |
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| author | Takahiro Soshi |
| author_facet | Takahiro Soshi |
| author_sort | Takahiro Soshi |
| collection | DOAJ |
| description | Interhemispheric and frontoparietal functional connectivity have been reported to increase during explicit information processing. However, it is unclear how and when interhemispheric and frontoparietal functional connectivity interact during explicit semantic processing. Here, we tested the neural coupling hypothesis that explicit semantic processing promotes neural activity in the nondominant right hemispheric areas, owing to synchronization with enhanced frontoparietal functional connectivity at later processing stages. We analyzed electroencephalogram data obtained using a semantic priming paradigm, which comprised visual priming and target words successively presented under direct or indirect attention to semantic association. Scalp potential analysis demonstrated that the explicit processing of congruent targets reduced negative event-related potentials, as previously reported. Current source density analysis showed that explicit semantic processing activated the right temporal area during later temporal intervals. Subsequent dynamic functional connectivity and neural coupling analyses revealed that explicit semantic processing increased the correlation between right temporal source activities and frontoparietal functional connectivity in later temporal intervals. These findings indicate that explicit semantic processing increases neural coupling between the interhemispheric and frontoparietal functional connectivity during later processing stages. |
| first_indexed | 2024-03-09T16:59:06Z |
| format | Article |
| id | doaj.art-ea76c31d3c9a4a0d95ff41d149f2c3fb |
| institution | Directory Open Access Journal |
| issn | 2076-3425 |
| language | English |
| last_indexed | 2024-03-09T16:59:06Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Brain Sciences |
| spelling | doaj.art-ea76c31d3c9a4a0d95ff41d149f2c3fb2023-11-24T14:32:53ZengMDPI AGBrain Sciences2076-34252023-11-011311160110.3390/brainsci13111601Neural Coupling between Interhemispheric and Frontoparietal Functional Connectivity during Semantic ProcessingTakahiro Soshi0Department of English Language Studies, Faculty of Foreign Language Studies, Mejiro University, Shinjyuku, Tokyo 161-8539, JapanInterhemispheric and frontoparietal functional connectivity have been reported to increase during explicit information processing. However, it is unclear how and when interhemispheric and frontoparietal functional connectivity interact during explicit semantic processing. Here, we tested the neural coupling hypothesis that explicit semantic processing promotes neural activity in the nondominant right hemispheric areas, owing to synchronization with enhanced frontoparietal functional connectivity at later processing stages. We analyzed electroencephalogram data obtained using a semantic priming paradigm, which comprised visual priming and target words successively presented under direct or indirect attention to semantic association. Scalp potential analysis demonstrated that the explicit processing of congruent targets reduced negative event-related potentials, as previously reported. Current source density analysis showed that explicit semantic processing activated the right temporal area during later temporal intervals. Subsequent dynamic functional connectivity and neural coupling analyses revealed that explicit semantic processing increased the correlation between right temporal source activities and frontoparietal functional connectivity in later temporal intervals. These findings indicate that explicit semantic processing increases neural coupling between the interhemispheric and frontoparietal functional connectivity during later processing stages.https://www.mdpi.com/2076-3425/13/11/1601neural couplingfunctional connectivitysemantic processingelectroencephalogram |
| spellingShingle | Takahiro Soshi Neural Coupling between Interhemispheric and Frontoparietal Functional Connectivity during Semantic Processing Brain Sciences neural coupling functional connectivity semantic processing electroencephalogram |
| title | Neural Coupling between Interhemispheric and Frontoparietal Functional Connectivity during Semantic Processing |
| title_full | Neural Coupling between Interhemispheric and Frontoparietal Functional Connectivity during Semantic Processing |
| title_fullStr | Neural Coupling between Interhemispheric and Frontoparietal Functional Connectivity during Semantic Processing |
| title_full_unstemmed | Neural Coupling between Interhemispheric and Frontoparietal Functional Connectivity during Semantic Processing |
| title_short | Neural Coupling between Interhemispheric and Frontoparietal Functional Connectivity during Semantic Processing |
| title_sort | neural coupling between interhemispheric and frontoparietal functional connectivity during semantic processing |
| topic | neural coupling functional connectivity semantic processing electroencephalogram |
| url | https://www.mdpi.com/2076-3425/13/11/1601 |
| work_keys_str_mv | AT takahirososhi neuralcouplingbetweeninterhemisphericandfrontoparietalfunctionalconnectivityduringsemanticprocessing |