I was going to say the same thing. I'd really like to see what objects exactly they used.

I have a variation on the original question. Suppose someone blind has never touched a cube. However, he knows that a cube is an object with 6 sides of equal dimensions and 8 corners. Then his blindness is suddenly cured. If he sees a cube would he be able to associate it with the description of a cube that's already in his head?