Auflistung nach Autor:in "Huckauf, Anke"
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- KonferenzbeitragBehind the Screens: Exploring Eye Movement Visualization to Optimize Online Teaching and Learning(Mensch und Computer 2023 - Tagungsband, 2023) Sauter, Marian; Wagner, Tobias; Hirzle, Teresa; Lin, Bao Xin; Rukzio, Enrico; Huckauf, AnkeThe effective delivery of e-learning relies on the continuous monitoring and management of students' attention. While instructors in traditional classroom settings can readily assess crowd attention through gaze cues, these cues are largely unavailable in online learning environments. To address this challenge and highlight the significance of our study, we collected eye movement data from twenty students and developed four visualization methods: (a) a heat map, (b) an ellipse map, (c) two moving bars, and (d) one vertical bar, which were overlaid on 13 instructional videos. Our findings revealed unexpected preferences among instructors. Contrary to expectations, they did not favor the established heat map and vertical bar for live online teaching. Instead, they opted for the less intrusive ellipse visualization. Despite this, the heat map remained the preferred choice for retrospective analyses due to its more detailed information. Importantly, all visualizations were deemed useful and contributed to re-establishing emotional connections in online learning. In conclusion, our innovative visualizations of crowd attention demonstrate considerable potential for a broad range of applications, extending beyond e-learning to encompass all online presentations and retrospective analyses. The significant outcomes of our study underscore the crucial role these visualizations will play in enhancing both the effectiveness and emotional connectedness of future e-learning experiences, thereby facilitating the educational landscape.
- KonferenzbeitragInformation processing in real and in stereoscopic environments(Mensch und Computer 2019 - Tagungsband, 2019) Huckauf, Anke; Eberhardt, LisaIt is widely acknowledged that the accommodation-vergence-conflict contributes a lot to strain and stress happening in stereoscopic vision. Astonishingly little is known, however, regarding the cognitive consequences. A set-up is developed and introduced which enables the quantification of recognition performance for objects which are viewed out of focus. Experiment 1 showed that in stereoscopic environments, recognition performance for objects behind fixation was in mean twice as good as in real environments. In real environments, recognition of objects presented behind fixation was even worse than in the upper visual field (Exp. 2). Although retinal disparity seems to contribute to this low recognition performance, Experiment 3 showed that in real environments, even without disparate images, processing of objects in depth is rather limited. The data provide a first estimate on how much defocus blur affects cognitive processing in real environments and hence, how much cognitive effort is required in stereoscopic scenes to enable comparable information processing in virtual and in real surrounds.