Audiovisual speech processing: the role of attention and conflict

Events in our environment do rarely excite only one sensory pathway, but usually involve several modalities offering complimentary information. These different informations are usually integrated into a single percept through the process of multisensory integration. The present dissertation addresse...

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Detalles Bibliográficos
Autor: Morís Fernández, Luis
Tipo de recurso: tesis doctoral
Estado:Versión publicada
Fecha de publicación:2016
País:España
Institución:CBUC, CESCA
Repositorio:TDR. Tesis Doctorales en Red
OAI Identifier:oai:www.tdx.cat:10803/385348
Acceso en línea:http://hdl.handle.net/10803/385348
Access Level:acceso abierto
Palabra clave:Audiovisual
Speech
Attention
Conflict
McGurk
Lenguaje
Atención
Conflicto
81
Descripción
Sumario:Events in our environment do rarely excite only one sensory pathway, but usually involve several modalities offering complimentary information. These different informations are usually integrated into a single percept through the process of multisensory integration. The present dissertation addresses how and under what circumstances this multisensory integration process occurs in the context of audiovisual speech. The findings of this dissertation challenge previous views of audiovisual integration in speech as a low level automatic process by providing evidence, first, of the influence of the attentional focus of the participant on the multisensory integration process, particularly the need of both modalities to be attended for them to be integrated; and second evidence of the engagement of high level processes (i.e. conflict detection and resolution) when incongruent audiovisual speech is presented, particularly in the case of the McGurk effect.