augmentative and alternative communication
Also written as: AAC — Augmentative and Alternative Communication
Methods and devices that supplement or replace natural speech for individuals with severe communication impairments.
Full Definition
Augmentative and alternative communication (AAC) encompasses all forms of communication other than oral speech that are used to express thoughts, needs, wants, and ideas. AAC includes both aided systems (requiring external tools like communication boards or speech-generating devices) and unaided systems (using body movements like gestures or sign language). The field emphasizes multimodal communication approaches and recognizes that AAC use often supports rather than hinders natural speech development. Implementation requires careful assessment of cognitive, linguistic, motor, and sensory abilities to determine appropriate AAC modalities and systems.
Usage
Usage note: Use lowercase for full term; AAC is acceptable abbreviation; note 'and' not '&' in formal writing.
In Context
- "The AAC evaluation will determine appropriate communication modalities and devices." — Referral documentation
- "Augmentative and alternative communication supports total communication across environments." — Treatment approach description