Development and preliminary evaluation of a grid design application for adults and children using scanning and bci-based augmentative and alternative communication.

The study had only five participants, so it cannot show what most people who use scanning or BCI-AAC prefer. All participants had previous BCI-AAC research experience, so the results may not apply to new users or people with no AAC technology experience. The group included only two adults with cervical spinal cord injury and three children without physical impairment, so it did not represent many other people who need AAC access. The study did not compare scanning and P300-BCI-AAC preferences, so it cannot say which highlighting method users prefer. The app was used only to design displays, not to select items in real time, so it did not measure selection accuracy, speed, learning, or communication outcomes. The app relied on touch or stylus access, so some people with limited movement may not be able to use it without partner support.

The author reports no competing interests. Dr Pitt receives a salary from the University of Nebraska-Lincoln.

Do not read the high ease and enjoyment ratings as proof that this app improves AAC performance. It was a proof-of-concept evaluation with five participants, not a controlled test, and it did not measure selection accuracy, speed, or communication outcomes.