Visual and Auditory Components in the Perception of Asynchronous Audiovisual Speech

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dc.contributor.authorGarcía Pérez, Miguel Ángel
dc.contributor.authorAlcalá Quintana, Rocío
dc.date.accessioned2023-06-18T06:49:16Z
dc.date.available2023-06-18T06:49:16Z
dc.date.issued2015-12
dc.description.abstractResearch on asynchronous audiovisual speech perception manipulates experimental conditions to observe their effects on synchrony judgments. Probabilistic models establish a link between the sensory and decisional processes underlying such judgments and the observed data, via interpretable parameters that allow testing hypotheses and making inferences about how experimental manipulations affect such processes. Two models of this type have recently been proposed, one based on independent channels and the other using a Bayesian approach. Both models are fitted here to a common data set, with a subsequent analysis of the interpretation they provide about how experimental manipulations affected the processes underlying perceived synchrony. The data consist of synchrony judgments as a function of audiovisual offset in a speech stimulus, under four within-subjects manipulations of the quality of the visual component. The Bayesian model could not accommodate asymmetric data, was rejected by goodness-of-fit statistics for 8/16 observers, and was found to be nonidentifiable, which renders uninterpretable parameter estimates. The independent-channels model captured asymmetric data, was rejected for only 1/16 observers, and identified how sensory and decisional processes mediating asynchronous audiovisual speech perception are affected by manipulations that only alter the quality of the visual component of the speech signal.
dc.description.departmentDepto. de Psicobiología y Metodología en Ciencias del Comportamiento
dc.description.facultyFac. de Psicología
dc.description.refereedTRUE
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/35136
dc.identifier.doi10.1177/2041669515615735
dc.identifier.issn20416695
dc.identifier.officialurlhttp://doi.org/10.1177/2041669515615735
dc.identifier.relatedurlhttp://ipe.sagepub.com/
dc.identifier.urihttps://hdl.handle.net/20.500.14352/24302
dc.issue.number6
dc.journal.titlei-Perception
dc.language.isoeng
dc.page.final20
dc.page.initial1
dc.publisherSAGE
dc.rightsAtribución 3.0 España
dc.rights.accessRightsopen access
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/es/
dc.subject.cdu159.9.07
dc.subject.cdu159.95
dc.subject.cdu159.93
dc.subject.keywordSynchrony judgments
dc.subject.keywordPerceived onset
dc.subject.keywordAudiovisual speech
dc.subject.keywordMultisensory integration
dc.subject.ucmPsicología experimental
dc.subject.ucmPsicología cognitiva
dc.subject.ucmPercepción
dc.subject.unesco6106 Psicología Experimental
dc.subject.unesco6104.01 Procesos Cognitivos
dc.subject.unesco6106.09 Procesos de Percepción
dc.titleVisual and Auditory Components in the Perception of Asynchronous Audiovisual Speech
dc.typejournal article
dc.volume.number6
dspace.entity.typePublication
relation.isAuthorOfPublicatione5c3695e-f861-4397-94d7-7aa543f0a630
relation.isAuthorOfPublication0a7dbcf6-8a0b-4b47-91af-79bb5db7bb52
relation.isAuthorOfPublication.latestForDiscoverye5c3695e-f861-4397-94d7-7aa543f0a630
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