Actually, I think both of you miss the mark a bit. Current neurological
research shows pretty clearly that the first stage of processing of
sensations into perceptions is hard-wired, and not subject to memetic
influence. Things like depth-cue interpretation, edge enhancement, face
recognition, and other processing steps evolved to make our perceptions
faster and more useful, but it is unlikely that we can influence them.
Of course, conscious processes can still choose how to interpret the
perceptions, but those perceptions are handed to us in a far from "raw"
state, and there's little we can do about that.