Discrimination of two neighboring intra- and intermodal empty time intervals marked by three successive stimuli

Auteur(s): Tsuyoshi, Kuroda; Hasuo, Emi; Labonté, Katherine; Laflamme, Vincent; Grondin, Simon
Résumé: We investigated the discrimination of two neighboring intra- or inter-modal empty time intervals marked by three successive stimuli. Each of the three markers was a flash (visual—V) or a sound (auditory—A). The first and last markers were of the same modality, while the second one was either A or V, resulting in four conditions: VVV, VAV, AVA and AAA. Participants judged whether the second interval, whose duration was systematically varied, was shorter or longer than the 500-ms first interval. Compared with VVV and AAA, discrimination was impaired with VAV, but not so much with AVA (in Experiment 1). Whereas VAV and AVA consisted of the same set of single intermodal intervals (VA and AV), discrimination was impaired in the VAV compared to the AVA condition. This difference between VAV and AVA could not be attributed to the participants' strategy to perform the discrimination task, e.g., ignoring the standard interval or replacing the visual stimuli with sounds in their mind (in Experiment 2). These results are discussed in terms of sequential grouping according to sensory similarity.
Date de publication: 21 décembre 2013
Date de la mise en libre accès: Libre accès non autorisé
Version du document: Version of Record
Lien permanent: http://hdl.handle.net/20.500.11794/242
Ce document a été publié dans: Acta Psychologica, Vol. 149, 134–141 (2013)
Autre version disponible: http://www.ncbi.nlm.nih.gov/pubmed/24360622
Collection(s) :Articles publiés dans des revues avec comité de lecture

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