Controled for age and IQ, people with ASD have fewer gestures per verbal phrase compared to TD people. They also tend to have shorter narratives when talking/describing events. There tends to be a general similarity in the rate of gestures they make per type of gesture.

Gestures generated by people with ASD tend to be 'less clearly produced,' meaning the coders found it difficult to classify or interperate gestures. This may be due to motor functions or timing of the gesture in relation to speech.