The paper describes the development of a computerized symbol processing system which allows nonspeaking severely handicapped persons to create communication electronically. Two pilot studies investigated the use of Rebus and Bliss Symbols with either an Apple Graphics Tablet or the Power Pad, a peripheral which allowed users to activate the…

The paper describes the Makaton Vocabulary as an alternative communication mode for children and adults with communication and language difficulties. The language program comprises the following components: a core vocabulary based on concepts/items needed to express essential needs and experiences; the use of signs and/or symbols always associated…