3D perception
stroke, impairments in stereoscopic vision, reduced mobility of the cervical spine
STROKE, STILL
The gaming environment in AR was an important focus of this study. Specifically, concerns regarding the spatial perception of stroke patients when using the HoloLens were of interest. The feasibility of using the HoloLens in neurological patients as shown by Rohrbach et al. [Regarding the AR perception by the patients, our results are very promising: All patients perceived or learned to perceive the holograms as three-dimensional and placed in space, with limited effort. Considering eight patients had impairments in stereoscopic vision, this is a remarkable finding. Still, the visual perception was challenging for one patient with reduced mobility of the cervical spine. As the field of view of the HoloLens is limited, the implemented game required the patients to explore the space in front of them actively by moving their head. In the implemented game, the holograms were placed in space, without linking them to physical objects within the room (e.g., placing a hologram on an actual table).It can be hypothesized that the linking of the holograms onto real objects, preferably in a realistic setting (e.g., a table or shelf), could not only increase the meaningfulness of the game, but also facilitate the identification of the holograms in space. Nevertheless, as the individualized combination of different technologies guides the way to future rehabilitation [