Guiding Attention by Stimuli at Graphical Complex, Dynamical User Interfaces in the Peripheral Visual Fixation Field
Final Report Abstract
The current project builds on the findings of a previous study in which optical signals with high luminance contrasts and high frequencies were found to be easily recognizable in the peripheral visual field. However, the results also showed that these usually well-recognized signals were recognized significantly worse in participants ≥ 45 years of age in high angle ranges peripherally (65° - 90°). This can be explained by physiological changes in the eye with advancing age. Sensitivity decreases significantly, particularly in these peripheral areas. The consequence of this was an investigation of new signal qualities. Theoretically backed, an increase in the size of the signal and a rotation effect were found to be starting points for an investigation. These new variables were tested in a study with N = 24 participants (M = 56.2 years; SD = 5.2 years, range: 47 - 67 years) under conditions comparable to the previous study. The best recognized signals of the previous project in the younger part (< 45 years) of the sample at that time formed a basis for comparison. It was found that the signal of the highest size level, in which the 3 mm wide frame zoomed to a final size of 37.5 mm x 45.5 mm (at a viewing distance of 76.6 cm), ensured comparable recognition. The change in size occurred at a frequency of 2.5 Hz or every 0.4 s. If a visual rotation was also shown through a white, 11 mm wide recess in the signal, comparably good recognition could be achieved from the lowest size level (magnification to 16.5 x 24.5 mm). The reaction times were in any case shorter than those of the previous project, by 1.2 s on average. In order to derive practical recommendations for designers, further influencing factors must be taken into account, such as distractions that impair attention, which were not present in the experiment. In this respect, the recommendation is made to choose the highest size level and rotation for the signals as far as possible, taking into account software ergonomic aspects. A combination with the findings of the previous project is also possible: signals could initially be displayed as recommended there and only become stronger after some time. However, the results also show that the intended age-appropriate design obviously comes up against physiological limits despite the amplified signals. From the investigated angle range of 81.7°, the amplified signals also show significantly poorer recognizability. Other options, such as additional signaling centrally or using augmented reality, should therefore be considered and investigated.
Publications
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Untersuchung von Aufmerksamkeitseffekten für die gezielte Gestaltung von Visualisierungsoberflächen für zeitgemäße Mensch-Maschine-Interaktion. Zeitschrift für Arbeitswissenschaft, 76(1), 65-82.
Hoppe, Annette; Ganßauge, Rico; Geißler, Uwe; Henke, Anna-Sophia & Reßut, Norman
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Alternsgerechte Darstellung von Signalen an hoch visualisierten Arbeitsplätzen. In: Tagungsband des 70. Frühjahrskongresses der Gesellschaft für Arbeitswissenschaft, Stuttgart., Kapitel D1.2. (2024)
Hoppe, A., Geißler, U. & Ganßauge, R.
