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The Picture Exchange Communication System (PECS) is a technique used to facilitate communication skills among children on the ASD spectrum with the help of pictures and visuals.
The autistic children are guided to initiate communication by handing over a picture of the object that they desire to the listener.
It is a very simple and scientifically proven technique to help ASD children, especially the ones with language deficits to start communicating with others.
It was developed by Lori Frost and Andy Bond who are researchers in functional communication and applied behavioral analysis in the year 1984.
The advantages of PECS
Reference
National Autism Resources 2020. Picture Exchange Communication System (PECS)
Available at - https://nationalautismresources.com/the-picture-exchange-communication-system-pecs/