Picture Exchange Communication System (PECS)
Skip to search form Skip to main content. Effectiveness of the Picture Exchange Communication System PECS on communication and speech for children with autism spectrum disorders: a meta-analysis. This meta-analysis reviews the current empirical evidence for PECS in affecting communication and speech outcomes for children with ASD. View PDF. Save to Library.
Studies were selected based on the established inclusionary and exclusionary criteria. The inclusionary criteria incorporated subjects with a formal diagnosis of ASD under the age of Advancements in conversation initiation, requesting behaviors and joint attention were noted, resulting in a global increase in communication interactions. However, studies demonstrated mixed results with specific consideration of rate of acquisition, modality preference, and overall effectiveness of the system. Conclusion: Synthesis of results from the 25 studies suggest that both PECS and other AAC systems show favorable outcomes for encouraging social-communicative behavior.
It is known that some autistic individuals are considered non-verbal, since they are unable to use verbal language and barely use gestures to compensate for the absence of speech. The objective of this study was to verify the most frequently used words in the implementation of PECS in autistic children, and on a complementary basis, to analyze the correlation between the frequency of these words and the rate of maladaptive behaviors. This is a cross-sectional study. The sample was composed of 31 autistic children, twenty-five boys and six girls, aged between 5 and 10 years old. To identify the most frequently used words in the initial period of implementation of PECS, the Vocabulary Selection Worksheet was used. There was no correlation between the total amount of items identified by the families and the rate of maladaptive behaviors. The categories of words most mentioned by the families could be identified, and it was confirmed that the level of maladaptive behaviors did not interfere directly in the preparation of the vocabulary selection worksheet for the children studied.
Journal of Autism and Developmental Disorders. Few studies on augmentative and alternative communication AAC systems have addressed the potential for such systems to impact word utterances in children with autism spectrum disorders ASD. The current study examined the role of PECS in improving the number of words spoken, increasing the complexity and length of phrases, and decreasing the non-word vocalizations of three young children with ASD and developmental delays DD with related characteristics. The results indicated that PECS was mastered rapidly by the participants and word utterances increased in number of words and complexity of grammar. Unable to display preview.