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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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00277_Text_ref14t.txt
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1997-02-04
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39 lines
Form Perception Without Past
Experience
Robert Fantz at the University
of Chicago showed that chicks
tended to peck at oval shapesΓÇöΓÇô
the shape of grainΓÇöΓÇômore
frequently than at other
shapes. Therefore, the chicks
must perceive form from birth,
and not on the basis of past
experience.
What evidence is there that
form perception is, in fact,
innate? The most direct way to
answer this question would be
to study individuals who were
born blind and later gained
their sight. The philosopher
William Molyneux asked
precisely this question in a
1706 letter to John Locke:
Suppose a man born blind,
and now adult, and taught by
his touch to distinguish
between a cube and a sphere of
the same metal, and nighly of
the same bigness, so as to tell,
when he felt one and the
other, which is the cube,
which the sphere. Suppose
then the cube and sphere be
placed on a table, and the blind
man be made to see: query,
whether by his sight, before he
touched them he could now
distinguish and tell which is
the globe, which the cube?