Definition
AAC refers to any method of communication used to supplement or replace natural speech. It ranges from low-tech (picture boards, PECS, sign language) to high-tech (speech-generating devices and apps like Proloquo2Go, TouchChat, and Snap Core First).
Why It Matters
AAC is not a last resort. It supports communication for nonspeaking and minimally speaking autistic people and those who are beginning communicators. A 2006 research review found no cases in which AAC intervention decreased speech, and most participants in the strongest studies showed modest gains in speech.
Common Misconception
Using AAC does not prevent speech from developing. Autistic people who use AAC have the right to communicate however works for them. AAC is a legitimate communication system, not a consolation prize.