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Illusion - Is Seeing Really Believing?
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Illusion - Is Seeing Really Believing (1998)(Marshall Media)[Mac-PC].iso
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00391_Text_rem09t.txt
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1997-02-04
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If proximity were to govern
correspondence in all cases,
however, in the three-spot
example we would have to
predict that the spot at position
2 of the first flashed array
would appear to move left to the
A position in the second flash,
because the spot at A is closer
to 2 than any other spot in the
second flash. Similarly, spot 3
at Time 1 would appear to move
to the B position at Time 2. The
spot at 1 at Time 1 and the spot
at C at Time 2 have no
corresponding spots, and
should not appear to move
anyplace. A sensory theory, or
any other theory based only on
stimulus proximity, is "blind"
to the content of each stimulus
unit and its role in the whole
configuration. But an
inference theory suggests a
very different conclusion. If
the stimuli consist only of
three spots presented at Time 1
and then at Time 2, the most
plausible inference is that the
first array of spots moved as a
whole to the position occupied
by the second array. Thus, we
would predict that the spots at
1, 2, and 3 presented at Time 1
would appear to move to the
respective positions of A, B, and
C at Time 2. That is, the array
would move to the right, and
the individual spots would not
move to the left, as would be
predicted solely by proximity.
In general, we preceive this
kind of sequence in just this
way.