Development of Augmentative and Alternative Communication Assessment Tools for Patients with ALS.

ALS patients usually use augmentative and alternative communication tools to communicate with other people, but the assessment tools, including the selection of an input switch, are very difficult to operate. In this study, we developed a novel device to measure the physical ability of patients to operate the input switch with a push lever. The study focused on the amount of pushing and the power required to operate the input switch, and the effectiveness was verified.