The purpose of this study is to understand how children's brains process sounds and language. Children with Autism Spectrum Disorder (ASD), Intellectual and Developmental Delay (IDD), or Developmental Language Disorder (DLD) often have trouble understanding sounds that are too close together compared to Typically Developing Controls (children without ASD, IDD, or DLD). Fast changes in speech can be hard for children. This may be awkward during conversations and difficult in social situations. This research will see if trouble with processing sounds contributes to language difficulties in children with ASD, IDD, and/or DLD.

Conversations are important for getting along in everyday life, but we don't really know what makes them successful. This study aims to find out what factors help make conversations better. By looking at different talking styles and techniques, we want to learn how to have more effective and enjoyable conversations. We are seeking volunteers between 12-15 years old both with and without autism and their families to partner with us.

The Social Coordination study aims to explore how people express themselves through facial expressions and body movements. We need help from adolescents ages 12 to 17 who have an Autism diagnosis or those who may be seeking a professional Autism evaluation to better understand behaviors they experience. We also need help from children and adolescents ages 8-17 who are typically developing. By utilizing new technology, researchers hope to identify differences in these expressions and movements. This information could lead to better methods for recognizing and understanding Autism and other behavioral conditions.