[vinceguidry]

I don't buy this argument. I often marvel at just how rapid recognition is. Occasionally you get a slow-dawning realization, but most of the time, things are perceived instantly. It didn't make sense to me until I read somewhere that brain activity denotes 'confusion' while when you finally get a realization, all goes quiet. So recognition happens at speed of light leaving a room.

Sure, if you're purposefully trying to confuse the brain, it's going to be confused. You're actively subverting normal brain function. I bet if they kept performing the same trick, the brain would eventually realize what's going wrong and get quicker at making the realizations.