Multisensory studies have mainly focused on the manner of integration processes. We investigated learning mechanisms underlying the integration, and found that 3-minutes adaptation could establish a new multisensory relationship between arbitrary sounds and visual motion information even for the adults' brain. We also demonstrated the inhibitory aspect of multisensory interaction: Tactile or auditory stimulation could suppress the perception of visual stimuli. Furthermore, we showed that the manner of multisensory interaction differed depending on the degree of autistic traits among general population. These findings would contribute to further understandings of underlying mechanisms of multisensory interaction.