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Bondy, A. & Frost, L. (2001). The Picture Exchange Communication System.

Behavior Modification, 25, 725‐744.
Abstract: The Picture Exchange Communication System (PECS) is an alternative/augmentative communication system that was developed to teach functional communication to children with limited speech. The approach is unique in that it teaches children to initiate communicative interactions within a social framework. This article describes the advantages to implementing PECS over traditional approaches. The PECS training protocol is described wherein children are taught to exchange a single picture for a desired item and eventually to construct picture‐based sentences and use a variety of attributes in their requests. The relationship of PECS’s implementation to the development of speech in previously non‐vocal students is reviewed. (http://www.sagepub.com)

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