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Fronto-temporal interactions in the theta-band during auditory deviant processing

Authors
Choi, Jeong WooLee, Jong KuKo, DeokwonLee, Gwan-TaekJung, Ki-YoungKim, Kyung Hwan
Issue Date
26-8월-2013
Publisher
ELSEVIER IRELAND LTD
Keywords
Mismatch negativity (MMN); Fronto-temporal interactions; Phase synchrony (PS); Granger causality (GC); Event-related potential (ERP)
Citation
NEUROSCIENCE LETTERS, v.548, pp.120 - 125
Indexed
SCIE
SCOPUS
Journal Title
NEUROSCIENCE LETTERS
Volume
548
Start Page
120
End Page
125
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/102423
DOI
10.1016/j.neulet.2013.05.079
ISSN
0304-3940
Abstract
Mismatch negativity (MMN) is a negative component of event-related potential (ERP) that reflects auditory deviant detection. Previous studies repeatedly suggested that MMN is generated by the fronto-temporal network However, it is still unclear how the frontal and temporal areas interact. To verify this, we observed the spatiotemporal pattern of inter-regional functional connectivity using phase synchrony and Granger causality, by analyzing event-related electroencephalograms (EEGs) elicited by standard and deviant tones in an oddball paradigm. Strong theta-band phase synchrony and bidirectional Granger causality were observed between the frontal and temporal areas during the processing of auditory deviants, especially at the temporal interval of MMN. Our results support the hypothesis that fronto-temporal interactions are crucial to the generation of MMN during auditory deviant processing. (C) 2013 Elsevier Ireland Ltd. All rights reserved.
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