The aim of this study was to conduct a preliminary analysis of relations between child and environmental variables, including factors related to communication aid provision, and participation in informal everyday activities in a sample of children with complex communication needs. Ninety-seven caregivers of children provided with communication…

The purpose of this study was to evaluate the feasibility of teaching an integrated requesting-rejecting sequence. Four children with developmental disabilities were taught to request missing items and reject wrong items using either speech-generating devices (SGD) or picture-exchange (PE) communication. Data showed that the introduction of the…

This study assessed the combination of two microswitches with a voice output communication aid (VOCA) with two persons (an adolescent and a young adult) with multiple disabilities. The microswitches allowed the participants to obtain direct access to preferred environmental stimuli; the VOCA enabled them to ask for caregiver's attention.…

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…