chap 3 Flashcards
What is an AAC system?
An integrated group of elements, aided or unaided, that includes symbols, selection techniques, and strategies.
Define iconicity in the context of symbols.
The relationship between a symbol and the object/concept it symbolizes.
What are the three types of symbols based on iconicity?
- Transparent symbols
- Translucent symbols
- Opaque symbols
What characterizes transparent symbols?
They can be easily predicted in the absence of the object they symbolize.
What characterizes opaque symbols?
They cannot be easily predicted even if the meaning is known.
Describe translucent symbols.
Their meaning may not be clear, but the relationship between symbol and reference is clearer with additional information.
How does iconicity affect communication efficiency?
High iconicity can help communication partners learn and interpret symbols, especially without voice output.
What are the three language representation methods (LRMs) in AAC?
- Alphabet-based methods
- Graphic symbols
- Semantic compaction
What do alphabet-based methods in AAC utilize?
Speed-up techniques such as traditional orthography and word or phrase prediction.
What is semantic compaction?
Combines picture icons into sequences to create words or phrases, allowing a small set of icons to represent many meanings.
How can a single icon be used in AAC?
A single icon can be associated with multiple meanings to convey various concepts.
What factors influence the vocabulary used in AAC?
- Age
- Communication partner
- Language development
- Environment
- Mood
- Content
What is the importance of symbol selection in AAC?
It is based on the person’s ability to access, recognize, and learn the meaning of the symbol.
What does the display format in an AAC system refer to?
The way symbols are presented in the system.
What are the types of display formats in AAC?
- Static (fixed)
- Dynamic (changes based on user processes)
- Hybrid (static and dynamic combination)
What is a static display in AAC?
Symbols remain in a fixed location with a finite number of symbols/messages.
Describe a dynamic display in AAC.
Selection of one symbol automatically activates a change in the symbol set.
What is a hybrid display in AAC?
A combination of static and dynamic components.
What is a visual scene in AAC?
A view of an environment made up of drawings, photographs, and/or virtual environments organized meaningfully.
Who might benefit from using visual scenes?
Beginner communicators, such as young children or individuals in early-functioning communication stages.
