This research project aims to enhance the understanding of prelinguistic symptoms of autism spectrum disorder in infants less than 12 months of age through the assessment of preverbal social and communication behaviors in the context of a pilot treatment program. Infants between 9-12 months of age exhibiting signs of ASD will be enrolled in a pilot treatment program designed to increase social engagement and decrease overall symptomology. This intervention will be a modified version of Pivotal Response Training, a validated manualized naturalistic intervention utilizing developmental and applied behavior analysis approaches. A parent-education component will also be incorporated allowing for families of infants at risk for ASD to better understand autism and learn effective therapeutic techniques. Despite research showing early signs of ASD in infancy, intervention resources for infants exhibiting early symptoms remain limited. This study aims to address this gap by assessing social-communicative gains made subsequent to the implementation of a comprehensive treatment program.