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The brain interprets the image on the *retina in the light of all sorts of other
"information" it receives. Perception, in fact, is by no means a simple recording
of the details of the world seen outside. It is a selection of those features with
which we are familiar. What it amounts to is that we do not so much believe
(3)
15 what we see as see what we believe. Seeing is an activity not only of our eyes
but of the (4), which works as a sort of selecting machine. Out of all the
images presented to it it chooses for recognition those that fit most closely with
the world learned by past experience.
(6)
I want to give a few more examples to show how what the brain has learned
0 influences the process we call "seeing things." Seeing, they say, is believing.
But is it? An arrangement can be made in such a
way that 3 person looks
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