Simply put echolalia is repeating or “echoing” what another person has said.
Echolalia is a characteristic frequently associated with Autism and researchers have found that up to 85% of people with autism, who are verbal, display echolalia of some form. However, Echolalia is a part of typical language development and normally begins at the age of 18 months of age and declines significantly by the age of three. In children with autism, echolalia occurs with greater frequency and lasts for a longer period of time than it does in children with typical language development.