Design and evaluation of a tactile memory game for visually impaired children

Visually impaired people have a lack of proper user interfaces to allow them to easily make use of modern technology. This problem may be solved with multimodal user interfaces that should be designed taking into account the type and degree of disability. The purpose of the study presented in this article was to create usable games for visually impaired children making use of low-cost vibro-tactile devices in multimodal applications. A tactile memory game using multimodal navigation support with high-contrast visual feedback and audio cues was implemented. The game was designed to be played with a tactile gamepad. Different vibrations were to be remembered instead of sounds or embossed pictures that are common in memory games for blind children. The usability and playability of the game was tested with a group of seven 12–13-year-old visually impaired children. The results showed that the game design was successful and a tactile gamepad was usable. The game got a positive response from the focus group.