Correlation Between Gait Perception and Autistic Traits in the General Population: A Study on Event-Related Evoked Potentials

Adults with Autistic Traits have Delayed Motion Perception of Approaching Life-size Characters: An Event-Related Potentials Study

“…They indicated that individuals with higher autistic traits have more delayed and less sensitive perceptions of the approach of others. This nding is supported by previous studies that showed that patients with ASD have longer latency of ERP to radial optical ow [11], and that individuals with ASD have longer latency of ERP to the PLW [12,13].…”

“…PLW is a visual stimulus consisting of moving dots that record joint positions during human body movement. The results showed that the latency of N1 in the occipito-temporal region was longer in individuals with higher autistic traits [12,13]. These ASD studies indicate that individuals with autistic traits have atypical motion perception of expansion movements, such as radial optic ow with an outward pattern and approaching PLW.…”

“…This result differs from those of a study using radial optic ow and PLW as the visual stimulus. The difference may be because the visual stimulus is a more natural and smooth virtual character video than the dot stimuli, such as radial optic ow [11] and PLW [12,13]. The V5/MT in the brain region where the N170 component is evoked has been suggested to play a role in integrating the local motion signal from V1 and converting it to global motion [25].…”

“…Most studies of motion perception in ASD used moving dot stimuli, such as radial optic ow, which represents nonbiological motion [11] or biological motion [12,13]. However, the motion perception of natural and smooth gait motion by a more realistic avatar remains unclear in ASD.…”

Neurotypicals with Higher Autistic Traits have Delayed Visual Processing of an Approaching Life-size Avatar’s gait: An Event-Related Potentials Study

“…PLW is a visual stimulus consisting of moving dots that record joint positions during human body movement. The results showed that the latency of N1 in the occipito-temporal region was longer in individuals with higher autistic traits than in those with lower autistic traits (Ichikawa et al, 2019;Inokuchi et al, 2022). These ASD studies indicate that individuals with higher autistic traits have atypical visual processing of expansion movements, such as radial optic ow with an outward pattern and approaching PLW.…”