Learning and memory

Why do you believe the Norwegians could not say their salmon was free of parasites? Hint: it has to do more with learning and memory than perception. Why do you believe the Norwegians could not say their salmon was free of parasites? Hint: it has to do more with learning and memory than perception (also, compare with Barack Obama’s campaign for the 2008 election, where it was never mentioned he was actually not Muslin).