The Picture Exchange Communication System (PECS) is a method of augmentative and alternative communication (AAC) that focuses on using imaging as opposed to speech communication techniques in order to assist autistic children in speaking. The PECS was designed in order to help autistic children who often experience significant delays in speech development.
Function
When a child is first exposed to the Picture Exchange Communication System, they are presented with sets of pictures of preferred toys and foods, for example. If the child has a desire for any of the items expressed in the pictures, they give the picture to a designated "communication partner," usually a parent, therapist or teacher. In turn the partner gives the child either the food or the toy that was specified.
Potential
Another common use of the Picture Exchange Communication System is to talk about things that the child is exposed to environmentally. For example, if an autistic child sees an apple in the fruit section of a grocery store, they can hand a picture of an apple to their parent or caregiver. This enforces the idea that speech communication is useful, and it might encourage the child to begin to speak.
Identification
A child can learn from the Picture Exchange Communication System with anyone who is thoroughly trained and well versed in the method, whether that person is a parent, teacher, therapist or caregiver. The person teaching PECS must understand, in detail, the principles of applied behavior analysis (ABA).
Theories/Speculation
ABA (applied behavior analysis) is an approach that focuses on instructing both behaviors and cognitive skills to autistic children. This method utilizes careful monitoring and positive reinforcement techniques to teach behavioral steps and practices.
Considerations
Costs of using the Picture Exchange Communication System are rather minimal. You should purchase a three ring binder (in order to keep the pictures) and a Velcro strip to display the current "subject" being used. The pictures can be drawn by hand or cut from magazines or books.
Tags: Communication System, Exchange Communication, Exchange Communication System, Picture Exchange, Picture Exchange Communication