Sangam: A Confluence of Knowledge Streams

Auditory Conflict Resolution Correlates with Medial–Lateral Frontal Theta/Alpha Phase Synchrony

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dc.contributor Harvard University--MIT Division of Health Sciences and Technology
dc.contributor McGovern Institute for Brain Research at MIT
dc.contributor Hamalainen, Matti S.
dc.creator Huang, Samantha
dc.creator Rossi, Stephanie
dc.creator Ahveninen, Jyrki
dc.creator Hamalainen, Matti S.
dc.date 2014-12-23T21:39:25Z
dc.date 2014-12-23T21:39:25Z
dc.date 2014-10
dc.date 2014-07
dc.date.accessioned 2023-03-01T18:08:55Z
dc.date.available 2023-03-01T18:08:55Z
dc.identifier 1932-6203
dc.identifier http://hdl.handle.net/1721.1/92491
dc.identifier Huang, Samantha, Stephanie Rossi, Matti Hämäläinen, and Jyrki Ahveninen. “Auditory Conflict Resolution Correlates with Medial–Lateral Frontal Theta/Alpha Phase Synchrony.” Edited by Lawrence M. Ward. PLoS ONE 9, no. 10 (October 24, 2014): e110989.
dc.identifier https://orcid.org/0000-0001-6841-112X
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/278931
dc.description When multiple persons speak simultaneously, it may be difficult for the listener to direct attention to correct sound objects among conflicting ones. This could occur, for example, in an emergency situation in which one hears conflicting instructions and the loudest, instead of the wisest, voice prevails. Here, we used cortically-constrained oscillatory MEG/EEG estimates to examine how different brain regions, including caudal anterior cingulate (cACC) and dorsolateral prefrontal cortices (DLPFC), work together to resolve these kinds of auditory conflicts. During an auditory flanker interference task, subjects were presented with sound patterns consisting of three different voices, from three different directions (45° left, straight ahead, 45° right), sounding out either the letters “A” or “O”. They were asked to discriminate which sound was presented centrally and ignore the flanking distracters that were phonetically either congruent (50%) or incongruent (50%) with the target. Our cortical MEG/EEG oscillatory estimates demonstrated a direct relationship between performance and brain activity, showing that efficient conflict resolution, as measured with reduced conflict-induced RT lags, is predicted by theta/alpha phase coupling between cACC and right lateral frontal cortex regions intersecting the right frontal eye fields (FEF) and DLPFC, as well as by increased pre-stimulus gamma (60–110 Hz) power in the left inferior fontal cortex. Notably, cACC connectivity patterns that correlated with behavioral conflict-resolution measures were found during both the pre-stimulus and the pre-response periods. Our data provide evidence that, instead of being only transiently activated upon conflict detection, cACC is involved in sustained engagement of attentional resources required for effective sound object selection performance.
dc.description National Institutes of Health (U.S.) (Award R01MH083744)
dc.description National Institutes of Health (U.S.) (Award R21DC010060)
dc.description National Institutes of Health (U.S.) (Award R21DC014134)
dc.description National Institutes of Health (U.S.) (Award R01HD040712)
dc.description National Institutes of Health (U.S.) (Award R01NS037462)
dc.description National Institutes of Health (U.S.) (Award 5R01EB009048)
dc.description Athinoula A. Martinos Center for Biomedical Imaging. Center for Functional Neuroimaging Technologies (P41EB015896)
dc.description National Institute for Biomedical Imaging and Bioengineering (U.S.) (P41 Biotechnology Resource Grant)
dc.description National Center for Research Resources (U.S.) (Shared Instrumentation Grant S10RR014978)
dc.description National Center for Research Resources (U.S.) (Shared Instrumentation Grant S10RR021110)
dc.description National Center for Research Resources (U.S.) (Shared Instrumentation Grant S10RR019307)
dc.description National Center for Research Resources (U.S.) (Shared Instrumentation Grant S10RR014798)
dc.description National Center for Research Resources (U.S.) (Shared Instrumentation Grant S10RR023401)
dc.format application/pdf
dc.language en_US
dc.publisher Public Library of Science
dc.relation http://dx.doi.org/10.1371/journal.pone.0110989
dc.relation PLoS ONE
dc.rights Creative Commons Attribution
dc.rights http://creativecommons.org/licenses/by/4.0/
dc.source Public Library of Science
dc.title Auditory Conflict Resolution Correlates with Medial–Lateral Frontal Theta/Alpha Phase Synchrony
dc.type Article
dc.type http://purl.org/eprint/type/JournalArticle


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