Section 10 Flashcards
What are the different types of AAC?
Unaided: no external material required, typically involve sound, movement, or change in position to convey meaning, depends on recall memory and visuospatial processing Ex. ASL, gestures, facial expression
Aided: require external aids or equipment, low tech or high tech, require recognition memory to operate
What are the different categories of AAC components?
Communicative concepts: inclusion and representation of concepts needed to construct messages
Organization strategies: arrangement and presentation of communicative concepts for message construction
Selection technique: method of physical construction of message
Output methods: information of the process and outcome of message contruction
What aspects of communicative concepts can be customized?
Vocabulary: must support expression of wants and needs, exchange of information, development of social closeness, and fulfillment of social etiquette routines. Make sure to consider current and future development for children.
Representation of vocabulary: symbols (spoken, graphic, or manual) can be 2D or 3D. Impacted by configuration, iconicity, and individual’s ICF
Acceleration strategies: message prediction (fixed or dynamic), encoding strategies (alpha, alphanumeric, numeric, arbitrary code, or iconic)
What are the different types of AAC display?
Fixed: symbols and layout don’t change but there can be multiple levels
Dynamic: layout is dynamic and can have an infinite number of concepts
How can concepts be grouped?
Taxonomic: categories or words Schematic: events and experiences Semantic/grammatical: by semantic/syntactic role Alphabetical Importance/frequency of use
What are the different symbol presentations?
Traditional grid
Visual scene: no distinct boundaries
What are different methods of selection for AAC?
Direct: directly pointing with a body part (effector) including eyes or some adaptive tool. The activation strategy is either timed, release, or averaged.
Indirect: indicate target from selection set as an indicator scans each choice.
What needs to be selected in the case of an indirect selection method?
Response signal by effector: vocalizations, consistent body movements, activation from an input device
Select input device (switch, joystick): mind cognitive and physical demands
Select scanning mode: automatic (stops when interrupted), inverse (starts with signal, ends with stopping), step (1 moves scan one step and second selects)
Select scanning pattern: single symbol (linear, circular, directed) or grouped (row-column, group-item)
What are difference types of feedback?
Activation: indicates target was selected ex. partner reads out, points, tone from device, see selection on the message bar
Message: information about the message ex. partner repeats message, points to message, system reads out, see message on display
Name some ways to optimize communication via communicative concepts in AAC.
Provide both core and fringe vocab
Promote language and literacy development
Use the hierarchy to symbols and a developmental pattern of learning
Iconicity
Choose symbols that reflect their conceptualization
Name some ways to optimize communication via organization in AAC.
Visual scenes for kids with developmental delays, several language difficulties, or between 2-3 years
Name some ways to optimize communication via selection in AAC.
Positioning impacts selection accuracy and speech
Scanning is harder for younger children
Linear scanning is between for preschool age with smaller arrays
Typically developing 2 year olds did better with modified scanning
Name some ways to optimize communication via output in AAC.
Digitized is more intelligible for kids
Those with intellectual disabilities have a hard time with synthesized speech
Noise affects intelligibility
Practice and exposure improve intelligibility
Context impacts intelligibility: words < sentences < discourse
Describe the characteristics of a motor speech disorder and the applicability of AAC.
Difficulty with coordination of oral structures leading to difficulty with articulation
AAC can be used to help children express their needs and communicate with others
Can use either low-tech or high-tech devices based on skills of the child and their needs
Describe the applicability of AAC to neurodevelopment disorders.
Can use either low-tech or high-tech devices based on cognitive skills of the child and their level of mobility/motor
control
AAC can be used to help children express their needs and communicate with others
Difficulty with a variety of skills that would require AAC intervention i.e. language development, motor control, speech intelligibility, etc.
Describe the applicability of AAC to DLD.
Children have failure to acquire language on their own for no obvious reason
AAC can be useful for developing language skills of children with DLDs as well as supporting their emotion
regulation
One method is to use voice output communication aids
(VOCAs) to help develop language and emotion regulation of children diagnosed with DLD
Describe the applicability of AAC to CAS/DAS.
For most children, AAC is a bridge to speech, a temporary means to increase communication abilities and decrease frustration while working to improve speech
Can use either low-tech or high-tech devices based on skills of the child and their needs
Some children with severe CAS may use AAC as their primary mode of communication for long-term
Describe the applicability of AAC to TBI.
Motor speech and/or language disorders that require AAC support
Some individuals may require AAC for short-term (have natural recovery of oral speech), others require AAC for long-term
Describe the applicability of AAC to neurodegenerative conditions.
Require rapid changes to access methods (gross and fine motor capabilities are declining)
People with ALS are predicted to need AAC within 6 months
Motor initiation may be a problem
Vision and visual acuity may change
Beginning of day vs. End of day skills will be different
Describe the applicability of AAC to brainstem stroke.
Cognitively may be intact but unable to demonstrate
capability
Eye movement issues
Quadriplegia
Describe the applicability of AAC to spinal cord injury.
Language and speech often left intact
AAC use is mostly requested for help accessing social media, email, netflix, etc.
Can use voice commands (with AAC to access apps on
their phone) for written communication
How does the developmental of grammar and vocabulary impact AAC use?
Ability to interpret and generate messages
What is the social impact of AAC?
Feelings of isolation because the AAC makes them stand out
Having difficulty making and maintaining friendships → because of difference in
mode of communication
Uncomfortable/awkward in social situations and gatherings
Take on the respondent role in social situations rather than initiator
Dependence on parents, caregivers, and siblings for successful communication
may restrict participation in a variety of activities
Limited participation in certain environments
Limited opportunities to engage with peers socially
Can help increase functional communication to develop social closeness and fulfill social etiquette expectations
Increased independence
How does AAC impact pragmatics?
Difficulty producing vocal intonation or depicting emotion in AAC output
Difficulty understanding/ delivering humor
Increased communication time because people have to wait for you to finish creating your thought
Reduced initiation of interactions
Reliant on competent communication partners
Can have a positive impact on social uses of communication such as turn taking