This 'ignoring' account has been pretty well falsified, at least for simple visual features. Using complex visual displays you can show that there is some degree of active filling in of the space covered by the blind spot, in terms of what people experience (Ramachandran and Gregory, 1991; Ramachandran, 1992). Using electrode recording you can also show that there is activity in the brain cells which ought to be registering information from the point in visual space covered by the blind spot (Matsumoto and Komatsu, 2005).
It is possible to test the limits of this filling in process for yourself. All you have to do is find a complex scene
