Augmentative and Alternative Communication (AAC)
What is Augmentative and Alternative Communication?
(definition from www.asha.org, Augmentative and Alternative Communication: Knowledge and Skills for Service Delivery)
AAC is a set of procedures and processes by which an individual's communication skills (i.e., production as well as comprehension) can be maximized for functional and effective communication. It involves supplementing or replacing natural speech and/or writing with aided (e.g., picture communication symbols, line drawings, Blissymbols, and tangible objects) and/or unaided symbols (e.g., manual signs, gestures, and finger spelling).
Aided symbols require some type of transmission device (external to the body).
Unaided symbols require only the body to produce.
Many individuals with severe communication and cognitive impairments can benefit from nonsymbolic forms of AAC such as gestures (reaching for a desired object) and vocalizations that convey different emotions.
No Technology Communication
*Do not require a power source to use or operate
No Technology Tools for Communication can include:
No Technology Tools for Communication can include:
- Sign Language
- Gestures (e.g., reaching, pointing)
- Picture Communication Symbols
- Digital Photographs
- Language and Communication Boards
- Choice Boards
- Communication Notebooks
- Pragmatic Organization Dynamic Display (PODD) system
Low Technology Communication
* Requires an external power source (e.g., batteries, plug in) and training to implement and maintain
Low Technology Tools for Communication can include:
Low Technology Tools for Communication can include:
- Single Message Switches
- Multi-level Communicators
High Technology Communication
* Requires an external power source and training to implement, program, and maintain the device
High Technology Tools for Communication can include:
High Technology Tools for Communication can include:
- Computerized communication devices
- ios Devices with communication applications