Delayed echolalia is when a child repeats words, phrases, or full sentences they’ve heard before, sometimes minutes, hours, or even days later. This language may come from people around them, or from media such as TV shows, films, or YouTube videos.
This is often a part of gestalt language processing (GLP). Children who are gestalt language processors use memorised chunks of language, or “gestalts,” as the building blocks for developing more complex and flexible speech over time. It’s their way of making sense of language, connecting with others, and expressing wants, needs, and ideas.
Many autistic individuals develop language this way, though some non-autistic children also process language through gestalts. Some children naturally move from copied phrases to self-generated speech, while others may need support to progress to the next stages of language development.