242. An Early Behavioral Index of ASD From Automated Microanalysis of Movement Dynamics

Abstract

Symptoms of ASD may alter the coordination infant-parent interactions, disrupting successful communication and social interactions. Previous research indicated that six-month-old infants with later ASD did showed no reduction in smiling following parental unresponsiveness (the still-face effect). Using automated tracking, we recently found that older children with and without ASD systematically differ in their head movements to social stimuli. In this study, we employed microanalytic, automated measurement to examine head movement coordination between infants and parents.