Pupil Dilation to Dynamic Audiovisual Emotional Speech Reflects Autistic-Trait Variation in Neurotypical Adults.

ABSTRACT: Autistic individuals commonly exhibit difficulties with emotion recognition, difficulties that contribute to social issues in Autism. Both emotion recognition and social abilities are distributed along a spectrum in Autism and the general population. We explored how Autistic traits, including social abilities, relate to emotional processing measured via pupil dilation in a neurotypical population. We presented participants with dynamic, audiovisual stimuli of actors uttering a semantically neutral phrase. These utterances were expressed with either a neutral tone of voice and facial expression, or with an angry, fearful, disgusted, happy, sad, or surprised tone and expression. Each emotion was presented with high- and low-intensity depictions. Participants were asked to identify the emotio

SUBMITTER: Chege M 

PROVIDER: S-EPMC12827228 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature