Abstract
People diagnosed with Autism spectrum disorders (ASD) showed particular temporal processing in multisensory integration. On the double flash illusion (one flash is perceived as twice by the presentation of two beeps), people with ASD was reported to have wider temporal binding window and greater integration than typically developed (TD) people, others found the opposite or inconsistent tendencies. Here, we focused on the fact that there exist five subcategories of ASD trait, and investigated the relationships between ASD traits and the manner of the double flash illusion by using Autism-Spectrum Quotient for TD people. We found the relationships between stronger ASD trait in communication and wider temporal window, stronger ASD trait in social skill and narrower temporal window, and stronger ASD trait in imagination and weaker magnitude of the illusion. These results suggest that each ASD trait could be uniquely related to the particular temporal binding processes of audiovisual integration.
