Visual cues and virtual touch: Role of visual stimuli and intersensory integration in cross-modal haptic illusions and the sense of presence.

Summary Intermodal integration (sometimes referred to as intersensory integration) may be a key psychological mechanism contributing to a sense of presence in virtual environments. Sensorimotor processes associated with multimodal integration may integrate perceptual cues and motor actions into a coherent experience and relatively consistent model of objects and spaces. When the cues come from virtual environments, intermodal integration may generate a sense of presence in a coherent virtual world. Because stimuli from virtual environments frequently fail to provide coherent and consistent cues, evidence of the role of intermodal integration might be found in intersensory illusions, the results of the user’s attempt to integrate an inconsistent environment. Secondly, if intermodal integration plays a role in the generation of presence, then intersensory illusions should be correlated with the illusion of presence in a coherent virtual world.

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