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Article: Articulation Artifacts During Overt Language Production in Event-Related Brain Potentials: Description and Correction
Title | Articulation Artifacts During Overt Language Production in Event-Related Brain Potentials: Description and Correction |
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Authors | |
Keywords | Language Residue iteration decomposition Speech artifact Speech production Artefact correction Electro-magneto articulography Event-related potential Method |
Issue Date | 2016 |
Citation | Brain Topography, 2016, v. 29, n. 6, p. 791-813 How to Cite? |
Abstract | © 2016, Springer Science+Business Media New York. Overt articulation produces strong artifacts in the electroencephalogram and in event-related potentials (ERPs), posing a serious problem for investigating language production with these variables. Here we describe the properties of articulation-related artifacts and propose a novel correction procedure. Experiment 1 co-recorded ERPs and trajectories of the articulators with an electromagnetic articulograph from a single participant. The generalization of the findings from the single participant to standard picture naming was investigated in Experiment 2. Both experiments provided evidence that articulation-induced artifacts may start up to 300 ms or more prior to voice onset or voice key onsetâdepending on the specific measure; they are highly similar in topography across many different phoneme patterns and differ mainly in their time course and amplitude. ERPs were separated from articulation-related artifacts with residue iteration decomposition (RIDE). After obtaining the artifact-free ERPs, their correlations with the articulatory trajectories dropped near to zero. Artifact removal with independent component analysis was less successful; while correlations with the articulatory movements remained substantial, early components prior to voice onset were attenuated in reconstructed ERPs. These findings offer new insights into the nature of articulation artifacts; together with RIDE as method for artifact removal the present report offers a fresh perspective for ERP studies requiring overt articulation. |
Persistent Identifier | http://hdl.handle.net/10722/246784 |
ISSN | 2023 Impact Factor: 2.3 2023 SCImago Journal Rankings: 0.863 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Ouyang, Guang | - |
dc.contributor.author | Sommer, Werner | - |
dc.contributor.author | Zhou, Changsong | - |
dc.contributor.author | Aristei, Sabrina | - |
dc.contributor.author | Pinkpank, Thomas | - |
dc.contributor.author | Abdel Rahman, Rasha | - |
dc.date.accessioned | 2017-09-26T04:27:58Z | - |
dc.date.available | 2017-09-26T04:27:58Z | - |
dc.date.issued | 2016 | - |
dc.identifier.citation | Brain Topography, 2016, v. 29, n. 6, p. 791-813 | - |
dc.identifier.issn | 0896-0267 | - |
dc.identifier.uri | http://hdl.handle.net/10722/246784 | - |
dc.description.abstract | © 2016, Springer Science+Business Media New York. Overt articulation produces strong artifacts in the electroencephalogram and in event-related potentials (ERPs), posing a serious problem for investigating language production with these variables. Here we describe the properties of articulation-related artifacts and propose a novel correction procedure. Experiment 1 co-recorded ERPs and trajectories of the articulators with an electromagnetic articulograph from a single participant. The generalization of the findings from the single participant to standard picture naming was investigated in Experiment 2. Both experiments provided evidence that articulation-induced artifacts may start up to 300 ms or more prior to voice onset or voice key onsetâdepending on the specific measure; they are highly similar in topography across many different phoneme patterns and differ mainly in their time course and amplitude. ERPs were separated from articulation-related artifacts with residue iteration decomposition (RIDE). After obtaining the artifact-free ERPs, their correlations with the articulatory trajectories dropped near to zero. Artifact removal with independent component analysis was less successful; while correlations with the articulatory movements remained substantial, early components prior to voice onset were attenuated in reconstructed ERPs. These findings offer new insights into the nature of articulation artifacts; together with RIDE as method for artifact removal the present report offers a fresh perspective for ERP studies requiring overt articulation. | - |
dc.language | eng | - |
dc.relation.ispartof | Brain Topography | - |
dc.subject | Language | - |
dc.subject | Residue iteration decomposition | - |
dc.subject | Speech artifact | - |
dc.subject | Speech production | - |
dc.subject | Artefact correction | - |
dc.subject | Electro-magneto articulography | - |
dc.subject | Event-related potential | - |
dc.subject | Method | - |
dc.title | Articulation Artifacts During Overt Language Production in Event-Related Brain Potentials: Description and Correction | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1007/s10548-016-0515-1 | - |
dc.identifier.scopus | eid_2-s2.0-84981225450 | - |
dc.identifier.volume | 29 | - |
dc.identifier.issue | 6 | - |
dc.identifier.spage | 791 | - |
dc.identifier.epage | 813 | - |
dc.identifier.eissn | 1573-6792 | - |
dc.identifier.isi | WOS:000385160600002 | - |
dc.identifier.issnl | 0896-0267 | - |