Attention Cheking

The application of passive eyetracking to check human attentive capacity cited in the previous paragraphs could be made much more general: there are many cases in which, a system of “user plus computer”, the electronic system provides superfluous, irritating information because it does not have the capacity to understand that the user is already aware of a specific situation.
Think about the “reading” of an X-ray: a computer with appropriate software may be able to independently analyze a plate and give the radiologist a list of interesting points to look at and judge. This process, however, might be extremely tedious and frustrating for an expert.
A computer equipped with an eyetracking system could determine which areas of the plate have been examined and which have not, calling the expert’s attention to areas in a much more “educated and intelligent way”, only where it may be necessary.