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AUGMENTATIVE AND ALTERNATIVE
COMMUNICATION

Alexander Utlang, OT II
Stephen Hawking

Tony Nicklinson
Overview
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• Communication
• What is AAC?
• Who uses AAC?
• When does a person
needs AAC?
• Types of AAC
• Myths about AAC
• Role of OT in AAC
YOU HAVE TO LEARN TO
COMMUNICATE BEFORE YOU CAN
COMMUNICATE TO LEARN
Gail Van Tatenhove
Communication and language
Communication and language skills allow a person to…
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Initiate, maintain, and terminate conversation
Establish/maintain Interpersonal relationships
Share ideas
Express feelings
Give information
Ask questions
Describe events
Solve problems
Direct others
Entertain
Show imagination
Refuse
Learn
Function with greater independence
Communication
• Communication requires that all parties have
an area of communicative commonality.
• There are auditory means, such as speaking,
singing and sometimes tone of voice
• Nonverbal, physical means, such as body
language, sign language, paralanguage,
touch, eye contact, or the use of writing
Facts
Estimated 1 - 1.5% of total population in
developed countries have such significant
communication disabilities that they cannot
rely on their natural speech to meet their daily
communication needs
What is Augmentative and
Alternative Communication?
• AAC is a set of tools and strategies that an
individual uses to solve everyday communicative
challenges. - ISAAC
• AAC involves attempts to study and when
necessary compensate for temporary or
permanent impairments, activity limitations, and
participation restrictions of persons with severe
disorders of speech-language production and/or
comprehension, including spoken and written
modes of communication - ASHA
Augmentative and Alternative
Communication
• AAC is a means to enhance overall
communicative effectiveness
• is to use the most effective communication
possible that may require a multimodal
approach in order to be able to communicate for
different purposes in a variety of contexts
• Natural Communication will always be
encourage and remain an integral aspect of the
total communication (multimodal) approach
- ASHA
Disabilities Affecting Speech,
Language, and Communication
• Dysarthria is a disorder of motor speech
control resulting from central or peripheral
nervous system damage that causes
weakness, slowness, and a lack of
coordination of the muscles necessary for
speech production.
Disabilities Affecting Speech,
Language, and Communication
• Apraxia is a disorder affecting the coordination
of motor movements involved in producing
speech caused by a central nervous system
dysfunction.
• Aphasia is a language disorder that occurs as a
result of a cerebral vascular accident to
Traumatic Brain Injury (TBI). It can affect both
expression of spoken and written language, e.g.
some people can forget names, places, or
events. Others may lose the ability to
understand spoken language.
Specific groups of AAC users
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Cerebral palsy
Intellectual impairment
Autism
Developmental dyspraxia
Muscular dystrophy
Traumatic brain injury
Locked-in syndrome
Amyotrophic lateral sclerosis
Parkinson's disease
Multiple sclerosis
Dementia
Deafness or hearing impairment
Blind or visually impaired
When does a person need AAC?
• To augment natural speech production
• Provide a means for communication when
other means are not available or diminished
• To promote speech/language development
• To address written communication or text
needs when handwriting is impaired
Assistive
Technology

Augmentative
Communication
Continuum
AAC unaided and aided range of
technology used as an intervention
• No Tech Systems: does not require a power source or an
external tool, and include facial expression, vocalizations,
gestures, and sign languages and systems.
• Low Tech Systems: defined as those that do not need
batteries, electricity or electronics. These are often very
simple communication boards or books, from which the
user selects letters, words, phrases, pictures, and/or
symbols to communicate a message
• Mid – High Tech Systems: dedicated devices developed
solely for AAC, or non-dedicated devices such as
computers that run additional software to allow them to
function as AAC devices.
Low Tech Devices
Mid Tech Devices
High Tech Devices
• AAC intervention is the process of enhancing
and optimizing daily functional
communication across all communicative
contexts
• This process takes time, as well as hours of
work by the augmented communicator and
the team of stake holders providing and
supporting the needed intervention and
follow-up activities and services
AAC Device Features
• Generally, the selection of the most
appropriate communication system is a
process of matching the abilities and needs
of the user to the features of the AAC device.
That is the meaning of providing the best fit
The following features of the AAC device
or system should be considered
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Communication potential
Access options
Symbol system(s)
Display
Device Output
Portability
Compatibility
Dedicated or computer-based
Durability and support
Cost
Chris Klein
Myths about AAC
• AAC is a last resort in speech language
intervention
• AAC hinders or stops further speech
development
• Individual must have a certain set of skills to
be able to benefit from AAC
• Speech-generating AAC devices are only for
individual with intact cognition
• Children have to be a certain age to be able to
benefit from AAC
No piece of equipment in an of itself eliminates
delay in language development or any
communication problem
Role of OT in AAC
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Assesses visual screening
Perception
Hand-eye coordination
Means of access
Functional communication skills
of writing and typing
Also assessed in conjunction with
PT are seating, positioning, and
placement of the augmentative
communication system
QUESTIONS?
Preferences
• https://sites.google.com/site/louisvilleaacpro
viders/
Stephen Hawking’s AAC Device