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Article: Dissociation of Connectivity for Syntactic Irregularity and Perceptual Ambiguity in Musical Chord Stimuli

TitleDissociation of Connectivity for Syntactic Irregularity and Perceptual Ambiguity in Musical Chord Stimuli
Authors
Keywordssyntactic irregularity
perceptual ambiguity
effective connectivity
linearized time-delayed mutual information
inferior frontal gyrus
Issue Date2021
PublisherFrontiers Research Foundation. The Journal's web site is located at http://www.frontiersin.org/neuroscience
Citation
Frontiers in Neuroscience, 2021, v. 15, p. article no. 693629 How to Cite?
AbstractMusical syntax has been studied mainly in terms of “syntactic irregularity” in harmonic/melodic sequences. However, “perceptual ambiguity” referring to the uncertainty of judgment/classification of presented stimuli can in addition be involved in our musical stimuli using three different chord sequences. The present study addresses how “syntactic irregularity” and “perceptual ambiguity” on musical syntax are dissociated, in terms of effective connectivity between the bilateral inferior frontal gyrus (IFGs) and superior temporal gyrus (STGs) by linearized time-delayed mutual information (LTDMI). Three conditions were of five-chord sequences with endings of dominant to tonic, dominant to submediant, and dominant to supertonic. The dominant to supertonic is most irregular, compared with the regular dominant to tonic. The dominant to submediant of the less irregular condition is the most ambiguous condition. In the LTDMI results, connectivity from the right to the left IFG (IFG-LTDMI) was enhanced for the most irregular condition, whereas that from the right to the left STG (STG-LTDMI) was enhanced for the most ambiguous condition (p = 0.024 in IFG-LTDMI, p < 0.001 in STG-LTDMI, false discovery rate (FDR) corrected). Correct rate was negatively correlated with STG-LTDMI, further reflecting perceptual ambiguity (p = 0.026). We found for the first time that syntactic irregularity and perceptual ambiguity coexist in chord stimulus testing musical syntax and that the two processes are dissociated in interhemispheric connectivities in the IFG and STG, respectively.
Persistent Identifierhttp://hdl.handle.net/10722/306598
ISSN
2023 Impact Factor: 3.2
2023 SCImago Journal Rankings: 1.063
PubMed Central ID
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorKim, CH-
dc.contributor.authorJin, SH-
dc.contributor.authorKim, JS-
dc.contributor.authorKim, Y-
dc.contributor.authorYi, SW-
dc.contributor.authorChung, CK-
dc.date.accessioned2021-10-22T07:36:55Z-
dc.date.available2021-10-22T07:36:55Z-
dc.date.issued2021-
dc.identifier.citationFrontiers in Neuroscience, 2021, v. 15, p. article no. 693629-
dc.identifier.issn1662-453X-
dc.identifier.urihttp://hdl.handle.net/10722/306598-
dc.description.abstractMusical syntax has been studied mainly in terms of “syntactic irregularity” in harmonic/melodic sequences. However, “perceptual ambiguity” referring to the uncertainty of judgment/classification of presented stimuli can in addition be involved in our musical stimuli using three different chord sequences. The present study addresses how “syntactic irregularity” and “perceptual ambiguity” on musical syntax are dissociated, in terms of effective connectivity between the bilateral inferior frontal gyrus (IFGs) and superior temporal gyrus (STGs) by linearized time-delayed mutual information (LTDMI). Three conditions were of five-chord sequences with endings of dominant to tonic, dominant to submediant, and dominant to supertonic. The dominant to supertonic is most irregular, compared with the regular dominant to tonic. The dominant to submediant of the less irregular condition is the most ambiguous condition. In the LTDMI results, connectivity from the right to the left IFG (IFG-LTDMI) was enhanced for the most irregular condition, whereas that from the right to the left STG (STG-LTDMI) was enhanced for the most ambiguous condition (p = 0.024 in IFG-LTDMI, p < 0.001 in STG-LTDMI, false discovery rate (FDR) corrected). Correct rate was negatively correlated with STG-LTDMI, further reflecting perceptual ambiguity (p = 0.026). We found for the first time that syntactic irregularity and perceptual ambiguity coexist in chord stimulus testing musical syntax and that the two processes are dissociated in interhemispheric connectivities in the IFG and STG, respectively.-
dc.languageeng-
dc.publisherFrontiers Research Foundation. The Journal's web site is located at http://www.frontiersin.org/neuroscience-
dc.relation.ispartofFrontiers in Neuroscience-
dc.rightsThis Document is Protected by copyright and was first published by Frontiers. All rights reserved. It is reproduced with permission.-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectsyntactic irregularity-
dc.subjectperceptual ambiguity-
dc.subjecteffective connectivity-
dc.subjectlinearized time-delayed mutual information-
dc.subjectinferior frontal gyrus-
dc.titleDissociation of Connectivity for Syntactic Irregularity and Perceptual Ambiguity in Musical Chord Stimuli-
dc.typeArticle-
dc.identifier.emailKim, CH: younkim@hku.hk-
dc.identifier.authorityKim, CH=rp01216-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.3389/fnins.2021.693629-
dc.identifier.pmid34526877-
dc.identifier.pmcidPMC8435864-
dc.identifier.scopuseid_2-s2.0-85114819406-
dc.identifier.hkuros328398-
dc.identifier.volume15-
dc.identifier.spagearticle no. 693629-
dc.identifier.epagearticle no. 693629-
dc.identifier.isiWOS:000698033200001-
dc.publisher.placeSwitzerland-

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