Baer, AlexandraHuebler, AntjeSaalfeld, PatrickCunningham, DouglasPreim, BernhardIvan Viola and Katja Buehler and Timo Ropinski2014-12-162014-12-162014978-3-905674-62-02070-5778https://doi.org/10.2312/vcbm.20141190https://diglib.eg.org/handle/10.2312/vcbm.20141190.181-190This paper presents the design and execution of a comparative experimental between-participant study with 42 participants. We investigated depth perception comparing a 2D display with a glasses-free 3D autostereoscopic display in detail and conducted a follow-up study with the new 3D zSpace technology including a stylus as input device. This work comprises the design of a tympanoplastic training scenario used as the study's "real world task". Participants had to position a prosthesis implant to reconstruct the ossicular chain and thus a patient's hearing ability. The study revealed an overwhelming support of the 3D autostereoscopic display compared to a 2D display regarding depth judgment, task completion time and the number of required scene and prosthesis interactions.B.4.2 [Input/Output and Data Communications]Input/Output DevicesImage Display G.3 [Probability and Statistics]Experimental Design