title: Discriminating speech rhythms in audition, vision, and touch.
abstract: We investigated the extent to which people can discriminate between languages on the basis of their characteristic temporal, rhythmic information, and the extent to which this ability generalizes across sensory modalities. We used rhythmical patterns derived from the alternation of vowels and consonants in English and Japanese, presented in audition, vision, both audition and vision at the same time, or touch. Experiment 1 confirmed that discrimination is possible on the basis of auditory rhythmic patterns, and extended it to the case of vision, using 'aperture-close' mouth movements of a schematic face. In Experiment 2, language discrimination was demonstrated using visual and auditory materials that did not resemble spoken articulation. In a combined analysis including data from Experiments 1 and 2, a beneficial effect was also found when the auditory rhythmic information was available to participants. Despite the fact that discrimination could be achieved using vision alone, auditory performance was nevertheless better. In a final experiment, we demonstrate that the rhythm of speech can also be discriminated successfully by means of vibrotactile patterns delivered to the fingertip. The results of the present study therefore demonstrate that discrimination between language's syllabic rhythmic patterns is possible on the basis of visual and tactile displays.
authors.affiliation: Fundació Sant Joan de Déu, Parc Sanitari Sant Joan de Déu, Parc Sanitari Sant Joan de Déu, CIBERSAM, Spain. Electronic address: jnavarrao@fsjd.org.
authors.forename: Jordi
authors.initials: J
authors.lastname: Navarra
authors.affiliation: Institució Catalana de Recerca i Estudis Avançats (ICREA), Spain; Departament de Tecnologies de la Informació i les Comunicacions, Universitat Pompeu Fabra, Spain.
authors.forename: Salvador
authors.initials: S
authors.lastname: Soto-Faraco
authors.affiliation: Crossmodal Research Laboratory, Department of Experimental Psychology, University of Oxford, UK.
authors.forename: Charles
authors.initials: C
authors.lastname: Spence
mesh_terms: D000328:Adult; D001307:Auditory Perception / Q000502:physiology; D005260:Female; D006309:Hearing / Q000502:physiology*; D006801:Humans; D008297:Male; D010507:Periodicity; D011930:Reaction Time / Q000502:physiology; D013060:Speech / Q000502:physiology*; D013067:Speech Perception / Q000502:physiology*; D014110:Touch / Q000502:physiology*; D055698:Touch Perception / Q000502:physiology; D014785:Vision, Ocular / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology; D055815:Young Adult
keywords: Audition; Discrimination; Speech rhythm; Speechreading; Touch; Vision