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

Jeong Woo Choi, Jong Ku Lee, Deokwon Ko, Gwan Taek Lee, Ki Young Jung, Kyung Hwan Kim

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)120-125
Number of pages6
JournalNeuroscience Letters
Publication statusPublished - 2013 Aug 26

Bibliographical note

Funding Information:
This research was supported by the Original Technology Research Program for Brain Science through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (No. 20100018840 ), and by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 20110029740 ).

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)


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