Philosophy
The training protocol is based on B.F. Skinner’s book Verbal Behavior. Functional verbal operants are systematically taught using prompting and reinforcement strategies that will lead to independent communication. Verbal prompts are not used during the early phases, thus building immediate initiation and avoiding prompt dependency. PECS begins with teaching a student to exchange a picture of a desired item with a teacher/communicative partner, who immediately honors the request. After the student learns to spontaneously request for a desired item, the system goes on to teach discrimination among symbols and then how to construct a simple sentence. In the most advanced phases, individuals are taught to respond to questions and to comment. Additionally, advanced language concepts such as size, shape, color, number, etc. are also taught so the student can make their message more specific. For example, I want big yellow ball.
PECS is intended to be combined with elements of behavior analysis.
Read more about this topic: Picture Exchange Communication System
Famous quotes containing the word philosophy:
“I would love to meet a philosopher like Nietzsche on a train or boat and to talk with him all night. Incidentally, I don’t consider his philosophy long-lived. It is not so much persuasive as full of bravura.”
—Anton Pavlovich Chekhov (1860–1904)
“A life-worshipper’s philosophy is comprehensive.... He is at one moment a positivist and at another a mystic: now haunted by the thought of death ... and now a Dionysian child of nature; now a pessimist and now, with a change of lover or liver or even the weather, an exuberant believer that God’s in his heaven and all’s right with the world.”
—Aldous Huxley (1894–1963)
“Why does philosophy use concepts and why does faith use symbols if both try to express the same ultimate? The answer, of course, is that the relation to the ultimate is not the same in each case. The philosophical relation is in principle a detached description of the basic structure in which the ultimate manifests itself. The relation of faith is in principle an involved expression of concern about the meaning of the ultimate for the faithful.”
—Paul Tillich (1886–1965)