The Effect of Spatial Disparity on the Integration of Auditory and Tactile Information

摘要

Spatial origin is an important cue for humans to determine whether auditory and tactile signals originate from the same event/object or not. This paper addresses spatial factors involved in the integration of auditory and tactile information. Perceptual threshold values for auditory-tactile spatial origin disparity were measured using tactile information and sound such as those generated by touching (scraping) an abrasive paper. The results of the study show that the minimum angle subjects need to notice that the locations of the auditory and tactile events do not coincide is 5.3°. Simultaneously presented tactile stimulation enlarges the auditory localization blur in the horizontal plane. The results show that the perceived location of auditory stimuli is influenced by tactile stimulation.