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Several recent studies of crossmodal perception have demonstrated that the presentation of task-irrelevant auditory stimuli can modulate the number of tactile stimuli that a person perceives. In the present study, we attempted to extend these findings concerning audiotactile interactions in human information processing to a touch screen device. Two experiments were conducted in order to address the following research questions: 1) Can the presentation of taskirrelevant sounds be used to modify the perception of the number of tactile pulses delivered via a touch-screen device? 2) Do task-irrelevant auditory stimuli have a more pronounced effect on the tactile perception of numerosity when the task conditions become more attentionallydemanding (i.e., under conditions of dual-tasking)? The results of both experiments demonstrate that the presentation of task-irrelevant sounds can modulate the number of vibrotactile targets that a participant will perceive. What is more, task-irrelevant sounds had a larger effect on tactile perception when the participants had to perform a secondary attention-demanding task at the same time. © OpenInterface Association 2009.

Original publication

DOI

10.1007/s12193-009-0014-8

Type

Journal article

Journal

Journal on Multimodal User Interfaces

Publication Date

17/06/2009

Volume

2

Pages

145 - 156