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Direct linkWilkinson, Krista M.; McIlvane, William J. – American Journal on Intellectual and Developmental Disabilities, 2013
Augmentative and alternative communication (AAC) systems often supplement oral communication for individuals with intellectual and communication disabilities. Research with preschoolers without disabilities has demonstrated that two visual--perceptual factors influence speed and/or accuracy of finding a target: the internal color and spatial…
Descriptors: Mental Retardation, Down Syndrome, Autism, Pervasive Developmental Disorders
Wilkinson, Krista M.; O'Neill, Tara; McIlvane, William J. – Journal of Speech, Language, and Hearing Research, 2014
Purpose: Many individuals with communication impairments use aided augmentative and alternative communication (AAC) systems involving letters, words, or line drawings that rely on the visual modality. It seems reasonable to suggest that display design should incorporate information about how users attend to and process visual information. The…
Descriptors: Eye Movements, Augmentative and Alternative Communication, Design, Efficiency
