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dc.contributor.authorGhinst, Marc Vander
dc.contributor.authorBourguignon, Mathieu
dc.contributor.authorOp de Beeck, Marc
dc.contributor.authorWens, Vincent
dc.contributor.authorMarty, Brice
dc.contributor.authorHassid, Sergio
dc.contributor.authorChoufani, Georges
dc.contributor.authorJousmäki, Veikko
dc.contributor.authorHari, Riitta
dc.contributor.authorBogaert, Patrick Van
dc.contributor.authorGoldman, Serge
dc.contributor.authorDe Tiège, Xavier
dc.date.accessioned2017-02-02T10:45:46Z
dc.date.available2017-02-02T10:45:46Z
dc.date.issued2016
dc.identifier.citationMarc Vander Ghinst, Mathieu Bourguignon, Marc Op de Beeck, Vincent Wens, Brice Marty, Sergio Hassid, Georges Choufani, Veikko Jousmäki, Riitta Hari, Patrick Van Bogaert, Serge Goldman, Xavier De Tiège Journal of Neuroscience 3 February 2016, 36 (5) 1596-1606; DOI: 10.1523/JNEUROSCI.1730-15.2016es
dc.identifier.issn0270-6474
dc.identifier.urihttp://hdl.handle.net/10810/20558
dc.descriptionPublished 3 February 2016es
dc.description.abstractUsing a continuous listening task, we evaluated the coupling between the listener’s cortical activity and the temporal envelopes of different sounds in a multitalker auditory scene using magnetoencephalography and corticovocal coherence analysis. Neuromagnetic signals were recorded from 20 right-handed healthy adult humans who listened to five different recorded stories (attended speech streams), one without any multitalker background (No noise) and four mixed with a “cocktail party” multitalker background noise at four signal-to-noise ratios (5, 0, 5, and 10 dB) to produce speech-in-noise mixtures, here referred to as Global scene. Coherence analysis revealed that the modulations of the attended speech stream, presented without multitalker background, were coupled at 0.5 Hz to the activity of both superior temporal gyri, whereas the modulations at 4–8 Hz were coupled to the activity of the right supratemporal auditory cortex. In cocktail party conditions, with the multitalker background noise, the coupling was at both frequencies stronger for the attended speech stream than for the unattended Multitalker background. The coupling strengths decreased as the Multitalker background increased. During the cocktail party conditions, the 0.5 Hz coupling became left-hemisphere dominant, compared with bilateral coupling without the multitalker background, whereas the 4–8 Hz coupling remained right-hemisphere lateralized in both conditions. The brain activity was not coupled to the multitalker background or to its individual talkers. The results highlight the key role of listener’s left superior temporal gyri in extracting the slow 0.5 Hz modulations, likely reflecting the attended speech stream within a multitalker auditory scene.es
dc.description.sponsorshipThis work was supported by Fonds de la Recherche Scientifique Research Credit J.0085.13, FRS-FNRS (Brussels, Belgium) and Fonds Erasme (Brussels, Belgium). M.V.G. was supported by Fonds Erasme (Brussels, Belgium). V.W. and X.D.T. were supported by Fonds de la Recherche Scientifique (FRS-FNRS, Brussels, Belgium). V.J. was supported by Institut d’Encouragement de la Recherche Scientifique et de l’Innovation de Bruxelles (Brains back to Brussels, Brussels, Belgium).es
dc.language.isoenges
dc.publisherThe Journal of Neurosciencees
dc.rightsinfo:eu-repo/semantics/openAccesses
dc.subjectcoherence analysises
dc.subjectmagnetoencephalographyes
dc.subjectspeech in noisees
dc.titleLeft Superior Temporal Gyrus Is Coupled to Attended Speech in a Cocktail-Party Auditory Scenees
dc.typeinfo:eu-repo/semantics/articlees
dc.rights.holderCopyright © 2016 the authors 0270-6474/16/361597-11$15.00/0es
dc.relation.publisherversionhttp://www.jneurosci.org/es
dc.identifier.doi10.1523/JNEUROSCI.1730-15.2016
dc.subject.categoriaNEUROSCIENCES


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