Augmentative and Alternative Communication (AAC) is any form of communication that people use if they are unable or unwilling to use standard forms of communication such as speech.
Augmentative communication systems are designed to complement and sometimes enhance standard means of communication.
Alternative communication systems are designed to replace standard means of communication.
This glossary is designed to explain some of the jargon and gobbledygook used by some people when they talk about autism or research..
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The fact that an intervention is listed in this glossary does not necessarily mean that we agree with its use. Nor does it necessarily mean that there is any scientifically valid or reliable evidence behind it.