On A Possible Relationship between Linguistic Expertise and EEG Gamma Band Phase Synchrony
Recent research has shown that extensive training in and exposure to a second language can modify the language organization in the brain by causing both structural and functional changes. However it is not yet known how these changes are manifested by the dynamic brain oscillations and synchronizati...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2011-11-01
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| Series: | Frontiers in Psychology |
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| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fpsyg.2011.00334/full |
| _version_ | 1819010701072531456 |
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| author | Susanne Maria Reiterer Susanne Maria Reiterer Susanne Maria Reiterer Ernesto ePereda Joydeep eBhattacharya Joydeep eBhattacharya |
| author_facet | Susanne Maria Reiterer Susanne Maria Reiterer Susanne Maria Reiterer Ernesto ePereda Joydeep eBhattacharya Joydeep eBhattacharya |
| author_sort | Susanne Maria Reiterer |
| collection | DOAJ |
| description | Recent research has shown that extensive training in and exposure to a second language can modify the language organization in the brain by causing both structural and functional changes. However it is not yet known how these changes are manifested by the dynamic brain oscillations and synchronization patterns subserving the language networks. In search for synchronization correlates of proficiency and expertise in second language acquisition, multivariate EEG signals were recorded from 44 high and low proficiency bilinguals during processing of natural language in their first and second languages. Gamma band (30-45 Hz) phase synchronization was calculated mainly by two recently developed methods: coarse-graining of Markov chains (estimating global phase synchrony, measuring the degree of phase synchronization between one electrode and all other electrodes), and phase lag index (estimating bivariate phase synchrony, measuring the degree of phase synchronization between a pair of electrodes). On comparing second versus first language processing, global phase synchronization by coarse-graining Markov chains indicated that processing of the second language (L2) needs significantly higher synchronization strength than first language. On comparing the proficiency groups, bivariate phase synchronization measures (e.g. phase lag index) revealed that during second language processing the low proficiency group showed stronger and broader network patterns than the high proficiency group, with interconnectivities between a left fronto-parietal network. Synchronization cluster analysis also indicated that the network activity was globally stronger in the low proficiency group during second language processing. |
| first_indexed | 2024-12-21T01:16:26Z |
| format | Article |
| id | doaj.art-610b6349d9824889be5fc75308759b0a |
| institution | Directory Open Access Journal |
| issn | 1664-1078 |
| language | English |
| last_indexed | 2024-12-21T01:16:26Z |
| publishDate | 2011-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Psychology |
| spelling | doaj.art-610b6349d9824889be5fc75308759b0a2022-12-21T19:20:46ZengFrontiers Media S.A.Frontiers in Psychology1664-10782011-11-01210.3389/fpsyg.2011.0033411369On A Possible Relationship between Linguistic Expertise and EEG Gamma Band Phase SynchronySusanne Maria Reiterer0Susanne Maria Reiterer1Susanne Maria Reiterer2Ernesto ePereda3Joydeep eBhattacharya4Joydeep eBhattacharya5University of TuebingenUniversity of TuebingenUniversity of ViennaUniversity of La LagunaUniversity of LondonAustrian Academy of SciencesRecent research has shown that extensive training in and exposure to a second language can modify the language organization in the brain by causing both structural and functional changes. However it is not yet known how these changes are manifested by the dynamic brain oscillations and synchronization patterns subserving the language networks. In search for synchronization correlates of proficiency and expertise in second language acquisition, multivariate EEG signals were recorded from 44 high and low proficiency bilinguals during processing of natural language in their first and second languages. Gamma band (30-45 Hz) phase synchronization was calculated mainly by two recently developed methods: coarse-graining of Markov chains (estimating global phase synchrony, measuring the degree of phase synchronization between one electrode and all other electrodes), and phase lag index (estimating bivariate phase synchrony, measuring the degree of phase synchronization between a pair of electrodes). On comparing second versus first language processing, global phase synchronization by coarse-graining Markov chains indicated that processing of the second language (L2) needs significantly higher synchronization strength than first language. On comparing the proficiency groups, bivariate phase synchronization measures (e.g. phase lag index) revealed that during second language processing the low proficiency group showed stronger and broader network patterns than the high proficiency group, with interconnectivities between a left fronto-parietal network. Synchronization cluster analysis also indicated that the network activity was globally stronger in the low proficiency group during second language processing.http://journal.frontiersin.org/Journal/10.3389/fpsyg.2011.00334/fullEEGgamma bandBilingualscortical efficiencylinguistic expertisephase synchronization |
| spellingShingle | Susanne Maria Reiterer Susanne Maria Reiterer Susanne Maria Reiterer Ernesto ePereda Joydeep eBhattacharya Joydeep eBhattacharya On A Possible Relationship between Linguistic Expertise and EEG Gamma Band Phase Synchrony Frontiers in Psychology EEG gamma band Bilinguals cortical efficiency linguistic expertise phase synchronization |
| title | On A Possible Relationship between Linguistic Expertise and EEG Gamma Band Phase Synchrony |
| title_full | On A Possible Relationship between Linguistic Expertise and EEG Gamma Band Phase Synchrony |
| title_fullStr | On A Possible Relationship between Linguistic Expertise and EEG Gamma Band Phase Synchrony |
| title_full_unstemmed | On A Possible Relationship between Linguistic Expertise and EEG Gamma Band Phase Synchrony |
| title_short | On A Possible Relationship between Linguistic Expertise and EEG Gamma Band Phase Synchrony |
| title_sort | on a possible relationship between linguistic expertise and eeg gamma band phase synchrony |
| topic | EEG gamma band Bilinguals cortical efficiency linguistic expertise phase synchronization |
| url | http://journal.frontiersin.org/Journal/10.3389/fpsyg.2011.00334/full |
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