Multisensory integration differences have been reported in individuals with Autism Spectrum Disorder (ASD) and Attention-Deficit/Hyperactivity Disorder (ADHD), yet little is known about how these traits may jointly influence multisensory processing. Given the high comorbidity between ASD and ADHD, examining their individual and combined effects is critical for understanding sensory integration in neurodivergent populations. The present study examined associations between Autistic and ADHD traits