Effects of auditory information change on the visible persistence of moving visual objects(Summary of Awarded Presentation at the 27th Annual Meeting)

抄録

In a visual apparent motion display, an abrupt change in the attributes of an object, such as its size, extends the time the changed object is visible (visible persistence) even after its physical termination. The aim of this study was to investigate whether an abrupt change in an attribute of contingent auditory stimuli can also alter the visible persistence of an object, and how it might do this. The results indicated that a visible persistence occurred for longer time when an abrupt change of tone was introduced into a sequence of constant tones presented synchronously with visual stimuli. This persistence was also longer than when no abrupt change was introduced or when auditory information was absent (Experiment 1). However, the effect was attenuated when it was difficult to attribute the auditory information to the moving visual objects (Experiment 2). These results suggest that the object representations underlying the visible persistence might be formed by multisensory integration of auditory and visual information.