"PECS is a tried-and-tested approach that uses pictures to develop communications skills. It's appropriate for children and adults with a wide range of learning, speech and communication difficulties, ...

This study compares use of the Picture Exchange Communication System (PECS) and a Voice Output Communication Aide (VOCA) with four preschool children who were either non-speaking or limited in their ...

Maud S. Dogoe, Devender R. Banda, Robin H. Lock, Acquisition and Generalization of the Picture Exchange Communication System Behaviors across Settings, Persons, and Stimulus Classes with Three ...