Context-dependent categorisation of vowels: a mismatch negativity study of positional neutralisation

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dc.creatorDaniel Márcio Rodrigues Silva
dc.creatorRui Rothe-Neves
dc.date.accessioned2023-11-10T23:22:16Z
dc.date.accessioned2025-09-09T00:56:30Z
dc.date.available2023-11-10T23:22:16Z
dc.date.issued2019-07-30
dc.identifier.doihttps://doi.org/10.1080/23273798.2019.1638948
dc.identifier.issn2327-3801
dc.identifier.urihttps://hdl.handle.net/1843/60824
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofLanguage, Cognition and Neuroscience
dc.rightsAcesso Restrito
dc.subjectCategorização (Linguística)
dc.subjectPercepção da fala
dc.subjectStress (Psicologia)
dc.subject.otherNeutralisation
dc.subject.otherStress
dc.subject.otherCategorisation
dc.subject.otherMismatch negativity
dc.subject.otherSpeech perception
dc.titleContext-dependent categorisation of vowels: a mismatch negativity study of positional neutralisation
dc.typeArtigo de periódico
local.citation.epage178
local.citation.issue2
local.citation.spage163
local.citation.volume35
local.description.resumoStudies exploring the mismatch negativity (MMN) response to speech sounds have identified neural activity associated with processing of phonologically distinctive information and language-specific perceptual categorisation. Yet little attention has been given to a basic fact of phonology, namely, that not all phoneme distinctions in a language are functional in all phonological contexts. The present ERP study explores a case in which the low-mid versus high-mid vowel distinction is limited to stressed syllables, resulting in category merger elsewhere – i.e. “positional neutralisation”. We provide evidence that the sensitivity of MMN generator processes to vowel distinctions parallels their position-dependent phonological status (functional versus neutralised). As an additional finding, the MMN peaked earlier for stressed than for unstressed distinctions, indicating that stress facilitates automatic auditory discrimination. The results fit neatly into models assuming that MMN reflects a mismatch between a deviant stimulus and an abstract representation of standards that omit phonologically non-distinctive information.
local.identifier.orcidhttps://orcid.org/0000-0001-7884-9205
local.identifier.orcidhttps://orcid.org/0000-0002-8896-8862
local.publisher.countryBrasil
local.publisher.departmentFALE - FACULDADE DE LETRAS
local.publisher.initialsUFMG

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