Question: was there ever any one whose part of the brain that fliped pictures did not work , would they be blined or just see things upside down?

Jen Todd Jones answered on 11 Mar 2013:

This is a fascinating question! I’d never thought about it before. To my knowledge the projection of the world we see is upside down on the back of the eye, and transforms to the correct way up at some points in the visual brain system between the eyes and the very back of the brain (in red – ).

A quick look at the research that I can find says yes, in 1988 and 1992 there were two published piece of work that had found people with upside-down vision – and once of those says that since 1905 there have actually been 21 reported cases! They can’t seem to decide where in the brain this happens, although for one of them it happened in the frontal lobe (just above your eyes, which would make sense), and the other happened because the artery that went into the brain about halfway back through the brain had burst.