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Aided communication methods can range from paper and pencil to communication books or boards to speech generating devices (SGDs) or devices producing written output. The elements of communication used in AAC include gestures, photographs, pictures, line drawings, letters and words, which can be used alone or in combination.
Children with autism have also been found to have strong visual-processing skills, making them ideal candidates for an AAC device [10]. AAC systems for this population will generally begin with object or picture exchanges (for instance, Picture Exchange Communication Systems(PECS)), and also communication boards.
[30] [31] AAC devices can be no-tech (sign language and body language), low-tech (picture boards, paper and pencils), or high-tech (tablets and speech generating devices). [29] The choice of AAC device is very important and should be determined on a case-by-case basis by speech therapists and assistive technology professionals.
Speech-generating devices (SGDs), also known as voice output communication aids, are electronic augmentative and alternative communication (AAC) systems used to supplement or replace speech or writing for individuals with severe speech impairments, enabling them to verbally communicate. [1]
Partner-assisted scanning is a technique used with children who have severe motor and communication impairments, and especially those with additional visual impairment, those who do not yet have an established alternative form of communication, or who are unable to use their usual method, perhaps because their electronic speech output device is being repaired. [3]
Tangible symbols are a type of augmentative and alternative communication (AAC) that uses objects or pictures that share a perceptual relationship with the items they represent as symbols. A tangible symbol's relation to the item it represents is perceptually obvious and concrete – the visual or tactile properties of the symbol resemble the ...
Semantic compaction, (Minspeak), conceptually described as polysemic (multi-meaning) iconic encoding, is one of the three ways to represent language in Augmentative and alternative communication (AAC). [1] It is a system utilized in AAC devices in which sequences of icons (pictorial symbols) are combined in order to form a word or a phrase.
ISAAC works to promote augmentative and alternative communication as a known and valued way of communicating worldwide. [6] The society's vision "is that AAC will be recognized, valued and used throughout the world" and the society's mission "is to promote the best possible communication for people with complex needs". [7]