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With low-tech devices, a communication partner is involved and must interpret the symbols chosen. Picture Communication Exchange System (PECS) is a commonly used low-tech communication system that teach individuals how to request, comment, and answer questions through the use of line drawings known as Picture Communication Symbols (PCS ...
Due to speech, motor, and cognitive decline, success with AAC devices in this population is variable [14]. Overall, amplifiers and alphabet boards are the most common low-tech AAC devices and the Lightwriter is the most common high-tech AAC device assigned to people with Parkinson’s disease [14].
Such display devices have a simpler learning curve than some other devices. Fixed display devices replicate the typical arrangement of low-tech AAC devices (low-tech is defined as those devices that do not need batteries, electricity or electronics), like communication boards.
Switch access scanning is an indirect selection technique (or access method), used with switch access by an assistive technology user, including those who use augmentative and alternative communication (AAC), to choose items from the selection set.
[29] [30] 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). [28] 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.
The training protocol is based on the principles of applied behavior analysis. [3] The goal of PECS is spontaneous and functional communication. [3] The PECS teaching protocol is based on B. F. Skinner's book, Verbal Behavior, such that functional verbal operants are systematically taught using prompting and reinforcement strategies that will lead to independent communication.
PCS for Non-verbal communication. Picture communication symbols (PCS) are a set of colour and black & white drawings originally developed by Mayer-Johnson, LLC for use in augmentative and alternative communication (AAC) systems. These AAC systems may be high-tech, such as the TD Pilot, or low-tech such as a communication board.
Communication board: Low-tech AAC device that displays pictures or words to which an individual points to communicate; Communication disorder: Disorders in speech, language, hearing, or listening that create difficulties in effective communication; Disfluency: Interruptions in the flow of an individual's speech
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