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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/60830
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dc.creatorDaniel Márcio Rodrigues Silvapt_BR
dc.creatorDanilo B. Melgespt_BR
dc.creatorRui Rothe-Nevespt_BR
dc.date.accessioned2023-11-11T01:02:00Z-
dc.date.available2023-11-11T01:02:00Z-
dc.date.issued2017-03-24-
dc.citation.volume54pt_BR
dc.citation.issue4pt_BR
dc.citation.spage591pt_BR
dc.citation.epage600pt_BR
dc.identifier.doihttps://doi.org/10.1111/psyp.12824pt_BR
dc.identifier.issn1469-8986pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/60830-
dc.description.resumoAccording to the neural adaptation model of the mismatch negativity (MMN), the sensitivity of this event-related response to both acoustic and categorical information in speech sounds can be accounted for by assuming that (a) the degree of overlapping between neural representations of two sounds depends on both the acoustic difference between them and whether or not they belong to distinct phonetic categories, and (b) a release from stimulus-specific adaptation causes an enhanced N1 obligatory response to infrequent deviant stimuli. On the basis of this view, we tested in Experiment 1 whether the N1 response to the second sound of a pair (S2) would be more attenuated in pairs of identical vowels compared with pairs of different vowels, and in pairs of exemplars of the same vowel category compared with pairs of exemplars of different categories. The psychoacoustic distance between S1 and S2 was the same for all within-category and across-category pairs. While N1 amplitudes decreased markedly from S1 to S2, responses to S2 were quite similar across pair types, indicating that the attenuation effect in such conditions is not stimulus specific. In Experiment 2, a pronounced MMN was elicited by a deviant vowel sound in an across-category oddball sequence, but not when the exact same deviant vowel was presented in a within-category oddball sequence. This adds evidence that MMN reflects categorical phonetic processing. Taken together, the results suggest that different neural processes underlie the attenuation of the N1 response to S2 and the MMN to vowels.pt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA ELÉTRICApt_BR
dc.publisher.departmentFALE - FACULDADE DE LETRASpt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofPsychophysiologypt_BR
dc.rightsAcesso Restritopt_BR
dc.subjectERPspt_BR
dc.subjectMismatch negativity (MMN)pt_BR
dc.subjectN1pt_BR
dc.subjectAdaptationpt_BR
dc.subjectLanguage/speechpt_BR
dc.subjectCategorizationpt_BR
dc.subject.otherCategorização (Linguística)pt_BR
dc.subject.otherCircuitos neuraispt_BR
dc.subject.otherPercepção da falapt_BR
dc.titleN1 response attenuation and the mismatch negativity (mmn) to within- and across-category phonetic contrastspt_BR
dc.title.alternativeN1 response attenuation and the mismatch negativity (mmn) to within- and across-category phonetic contrastspt_BR
dc.typeArtigo de Periódicopt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-8896-8862pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-7884-9205pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-5419-3827pt_BR
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