We explained the basics of the eye-tracking and illustrated it with a classical experiment in visual neurosciences, namely the phenomenon of change blindness. We received about 60 people, and recorded eye-movements from 10 volunteers. Below I prepared an animated GIF that shows both the images shown to volunteers and the location that are most fixated by one volunteers. Overall our efforts were rewarded as being the highest rated demo during the night in our department.
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| Nine images shown to ten volunteers during the Night of Science event in Hamburg. The animation above consists of 3 different images. The first two consist of flickering images presented during the experiment to induce change blindness; and the last one is the semi-transparent fixation map showing locations that were most attended by all volunteers. |
For more information on change blindness, there is probably no better source than Kevan O'Regan's webpage whose name is closely associated with this phenomenon. For preparing the demo, we actually used many of the images that were used in the original publication. Furthermore, his webpage provides also a rich and original source of information on vision and perception.
