Research on AAC symbols has focused almost exclusively on iconicity and complexity, and thus has not established whether additional visual features are necessary for conveying meaning in graphic representations. Despite variations in individual depictions of an "apple," we understand the underlying concept due to shared consensus on the set of…

This paper provides an overview of the literature dealing with the use of the Picture Exchange Communication System (PECS) and voice output communication aids (VOCAs) for promoting the performance of requests by students with developmental disabilities. Computerized and manual searches were carried out to identify the studies published during the…

Purpose: To report on data from the current survey about academic and clinical education in augmentative and alternative communication (AAC), as well as to compare these findings with earlier surveys in an attempt to identify any changes being made as programs in the United States implement the new certification standards of the American…

For adults with disabilities who are unable to speak, the literature recommends that intervention include augmentative and alternative communication (AAC) to improve communication and interactions with others. Some adults with moderate intellectual disabilities who exhibit limited functional speech are often overlooked as candidates for AAC…

Research related to the use of the Picture Exchange Communication System (PECS) with individuals having autism spectrum disorders (ASDs) was examined using a communication competence paradigm detailed by J. C. Light (1988, 1989, 2003). Communication components were operationalized based on skills identified in ASD research. A review was conducted…

The purpose of this investigation was to gain an understanding of the challenges of teaching non-speaking learners with intellectual disabilities and the scope of augmentative and alternative communication (AAC) used in primary school settings in Gaborone, Botswana. A qualitative interview methodology was used to investigate the experiences of 11…

Background: Services employing staff to support people with disability usually provide training in a range of areas including communication and managing challenging behaviour. Given that such training can be costly and time-consuming, it is important to evaluate the evidence presented in support of such programs. Efficacy in clinical practice is…

Three children diagnosed within the autism spectrum between the ages of 5 and 7 years at different stages of communication development were supplied with speech-generating devices (SGDs) in their homes. The parents were taught to introduce the SGDs into home routines and the effects were evaluated naturalistically. Videotapes recorded by the…

Madison is a four-year-old child who was born with cerebral palsy and cortical vision impairment. As a result, she has limited use of her extremities and is just starting to walk with assistance. She is predominately non-verbal, with the exception of a few words. This article describes how Island Dolphin Care (IDC), a nonprofit agency in Key…

As a pediatric physical therapist, the author usually hears this question, "Now What?," after months of frustration as parents attempt to figure out the procedure of getting an item for their child. Unfortunately, there is not a specific answer except "it depends," which can be just as frustrating as the question at hand. Typically, a piece of…

This literature review examines the present level of evidence in support of communication-based treatments for children with autism spectrum disorders. Reviews to date have reported on research published through 2002. The current article included 36 studies published between 2002 and 2007. Best available evidence is presented for seven treatment…

The purpose of this study was to develop and to evaluate the Preferences for Leisure Attributes (PLA) Assessment, a forced-choice computer software program for students with severe disabilities and communication difficulties. In order to determine content validity of the PLA Assessment, four experts in related fields assigned critical attributes…

This qualitative case study investigated the perceptions of parents of children with autism spectrum disorders (ASD), special education teachers, and general education teachers in a Northeast Tennessee public school system regarding educational interventions for children with ASD including what interventions they have found effective, the barriers…

Literacy skills are fundamental for all learners. For students who require augmentative and alternative communication (AAC), strong literacy skills provide a gateway to generative communication, genuine social networking, improved access to academic opportunities, access to information technology and future employment opportunities. However, many…