Vision is fine and there is some residual spoken language. Three switch Morse code input was chosen due to the users poor timing of switch movements. The Macaw 3 is set to a key pattern of 32 but only 16 messages are programmed initially. Multiple overlays are used with the select level and key linking features activated. The overlays are placed on the Macaw in a page turning method in order for them to be changed quickly and independently by either the user or an assistant.
Language is thematic based with single hit messages and some simple key linking.
The user is introduced to one overlay at a time to ease in navigation and then taught to use the select level feature. The key linking feature is introduced once navigation and message selection become fluent. Learning curve is slow to start but moves quickly with some self teaching occurring. Morse code input method can be a faster method for everyone from a severely cognitively involved switch user to a high-level user of a picture communication system. This session is designed to demonstrate Morse code with three potential users and give the audience some creative strategies to implement.