Using multimodal communication, including Augmentative and Alternative Communication (AAC)

Relying on only one modality for communication can leave a person with complex communication needs vulnerable to communication breakdown. The principle of multimodal communication is to combine multiple methods of communication to enable messages to be understood and delivered more effectively.

Multimodal communication may involve the use of Augmentative and Alternative Communication (AAC). AAC includes oral (speech, vocalisations), manual (sign and gesture) and other unaided strategies, aided systems, and other assistive technologies to support communication.

Speech pathologists are trained in all aspects of communication with people with developmental disability, including the use of AAC systems and strategies. Speech Pathology Australia can advise on referring people to a speech pathologist for assistance with their communication.

To support multimodal communication with people with developmental disability:

• use gestures to demonstrate key words when speaking
• confirm messages using pictures and communication aids
• offer the person alternative ways to get their message across
• allow more time for a response
• ask the person’s permission before ‘guessing’—some people find this disempowering while others find it helpful.

For more information on AAC, see Unaided augmentative and alternative communication and Aided augmentative and alternative communication.