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Replacing Indirect Manual Assistive Solutions With Hands-Free, Direct Selection, James W. Leonard Jr.

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Case study BK is a teenage male who suffers from severe cerebral palsy, making communication very difficult using his current assistive technology. His performance with a manual switch was compared to a hands-free system for computer interaction (Cyberlink Brainfingers/ NIA). BK uses a switch scanning menu, which steps through predetermined options till he chooses the current option being read aloud by pressing a button. A yes/no menu was used for the switch scanning interface for both manual and hands free conditions, as well as the point and click condition. In both hands-free conditions, BK was as fast and accurate as …