Association between Motion Perception of Approaching Others and Autistic Traits

-Measurement of Event-Related Evoked Potentials for Approaching Life-Size Virtual Character-

Abstract

Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by a combination of atypicalities in social cognition. From previous studies, it has been shown that people with autistic characteristics have different gait characteristics and motion perception from typically developing individuals. In the present study, we investigated the association between motion perception and autistic traits by measuring visual event-related potentials (ERPs) while observing the life-size virtual character approaching and receding. As the results, there was a significant positive correlation between P1 latency on the occipitotemporal area and SATQ scores. These findings suggest that people with more autistic traits have delayed motion perception of biological motion in others.