The Interaction Between Multisensory Integration And Causal Perception

Multisensory integration generally refers to the set of processes by whichinformation arriving from the individual sensory modalities interacts and influencesprocessing in other sensory modalities,including how these sensory inputs arecombined together to yield a unified perceptual experience of multisensory events. Multisensory integration has a very important significance to explore the outsideworld. Existing research found that in a multisensory integration process, whetherhumans should integrate the various channels of information together, will be affectedby the causal relationship between the events, however,paid little effect on theirrelationship. In the real world, humans can perceive abstract causal relationship bylooking directly, which is called the causal perception. depends on the processing ofmultisensory information by the brain, which means causal perception will beinfluenced by multisensory integration. To compensate the lack of exist research, thisstudy by operating the physical sense of causality perception, intuition reveals:(1)Multisensory integration promotes causal perception.(2) Causal perception promotesmultisensory integration.In this study, three experiments were designed. Experiment1is2(with orwithout tone)×3(delay time:40ms/80ms/120ms) within the design. By addingvoice in the traditional paradigm of causal perception, study the influence ofmultisensory integration on causal perception. It was found that after adding thesound in the80ms test, the causal perception of the entire event will be increased.Experiment2is two horizontal single factor (coincident with the collision) withindesign. By changing the perception of the position of the black balls and white ballsencounter when operating a causal relationship to investigate whether the causalrelationship effects multisensory integration. It was found that when the wholeincident had no causal perception, reaction time was slower, the correct rate is lower.Experiment3is a single factor with three levels (no beep, beep sound, sound of thecollision) within the design. By changing the tone operation causal perception to investigate whether top-down causal perception affects multisensory integration. Itwas found that the presence or absence of sound subjects there is a clear response tothe impact, but the nature of the sound does not have an impact on the subjects.The study reached the following conclusions:(1) Multisensory integration promotes causal perception.(2) the absence of the causal perception affect multisensory integration.(3) Early multisensory integration is an automatic processing, little affected bythe top-down processing.