The Picture Exchange Communication System (PECS) is a popular augmentative and alternative communication intervention for individuals with developmental disabilities that includes six, sequential phases of instruction. We systematically reviewed published and unpublished single-case PECS studies for details about the percentage of participants…

Effects of synthetic speech output on the learning of graphic symbols by three adults with severe to profound mental retardation and communication impairments were evaluated. All participants achieved criterion learning using synthetic speech; two also reached criterion without synthetic speech, but the addition of synthetic speech resulted in…

Designed for teaching the related services staff, residential care providers, and families of individuals with severe hearing and vision impairments, this booklet explains the issues related to developing a communication system using textures. The texture symbols described are intended for use by individuals with dual sensory and multiple…

This paper summarizes the background, staffing, philosophy, participants, methods, and conclusions of the Case Studies on Facilitated Communication Project, which examined the use of facilitated communication (FC) with seven adult females, all with mental retardation and other disabilities. Information is provided on the development of the FC…

This manual describes the Wisconsin Sensorimotor Pointing Assessment (WSPA) for individuals with severe communication deficits complicated by other cognitive or motor disabilities, and provides guidelines for its administration. The WSPA was designed to quantify four categories of sensory and motor abilities necessary for initiating and accurately…