Although attentional tunneling as a phenomenon is at least known since the late 1970ies, it is still an area of high
research interest, since it bears connections to current and future applications in head-up and head-down displays. For
example, it is still not fully answered to what degree highly dynamic scenarios influence the pilot's ability to keep up
with routine tasks, and vice versa, when and whether dynamic scene changes stay unnoticed under high workload. In
order to further investigate attentional tunneling a generic experimentation environment was set up. The core of the
environment is DLR's flexible sensor simulation suite (F3S). This simulation software can be installed on specialized
simulation platforms, for example a Vision Station, as well as on standard workstations and can be tuned to a simple
view simulation with different levels of realism. It allows for a full and dynamic control of experimental scenarios, for
example possible changes in the environment. For larger scenarios several platforms can be coupled to enable the
investigation of team situations. As one of its key features the set-up includes a full eye-tracking solution that is further
capable of recording dynamic areas of interest. Within a first experiment with a student sample F3S was used as a simple
view simulation combined with synthetic approach scenarios. Subjects were asked to detect changes whilst flying
highway-in-the-sky approaches with a head-up display. At the same time eye gaze positions where tracked. This novel
approach to the investigation of attentional tunneling can prove that an environmental change, even though visually
perceived, is not necessarily cognitively processed at the same time.
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