It's no surprise to me that one would adapt over time. The article you link didn't mention any long-term study. I'd be curious to know how long it would take to

It's no surprise to me that one would adapt over time. The article you link didn't mention any long-term study. I'd be curious to know how long it would take to replace one's vision to that of vertically or horizontally mirrored vision, in full. It's one thing to walk or drive a motorcycle, it would be another thing to handle situations requiring sub-second reflexes. Once you've managed to fully adapt to the new mapping, is it just as jarring to revert and go back to normal, or have you learned how to handle both? Say you rotated for an entire year - or longer - on a weekly schedule between normal vision, vertically mirrored vision, and horizontally mirrored vision. Do you gain full training in all three to the point that you could transition between normal/vertical/horizontal at any time without any disorientation or readjustment period? Or can the brain really only handle one mapping at a time? This would be the ultimate question to answer. I suspect the results would be similar to how we handle multiple languages. Your primary vision (ie: the one you learned first, or the one you have used exclusively for a decade or more) would remain the easiest to work with, while acquired alternatives may approach the "fluency" of the primary, while not being perfect.