Augmentative and Alternative Communication

Reading Notes Module 8a.html

Learning Module 8: Reading Notes

Terminology Used in Augmentative and Alternative Communication (AAC)

• Symbol: Something used to represent another thing or concept. For example, a picture or line drawing of a dog to represent dog.

• Symbol Set: A set of symbol that is closed in nature; symbol set can be expanded, but it does not have clearly defined rules for expansion (e.g., Picture communication symbols).

• Symbol System: A set of symbol; includes rules or a logic for the development of symbols (e.g., Blissymbols).

• Speech Generating Device: An electronic assistive device that produces speech (e.g., Dynavox, Mercury).

• VOCA: Voice Output Communication Aid; other term for electronic assistive device producing speech

• Assistive Communication Device: Electronic or non-electronic aid or device that provides external assistance for communication.

• AAC System: An integrated network of symbols, techniques, aids, strategies, and skills.

• Input Method: Technique used to select representations of the wanted utterances from an electronic device (e.g., touchscreen selection, eye gaze pointing, switch usage)

Symbol Selection Techniques

• Direct Selection: An individual points to the desired symbol using a finger or alternative selection technique (i.e., headpointer or eyegaze pointing).
• Scanning: An individual is offered an array of symbols. As the communication system or partner scans through the symbols, the AAC user indicates his/her desired choice by using the alternative selection technique (i.e., pointing, switch use, head nodding) to select the desired symbol.

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