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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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ILLUSION
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00278_Text_ref14t.txt
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1996-12-31
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The matter is not that simple,
however. The experiment
Molyneux proposed could not
resolve the question of the
innateness of visual form
perception because it
presupposes immediate transfer
from touch to vision. What we
want to know is whether or not
a person, on first regaining
sight, could discriminate
visually between two figures
such as a sphere and a cube
and, if so, whether or not the
person would perceive each
shape the way we do. We need
not expect that by sight alone
the sphere would also suggest to
the observer the tactual feel
with which it was associated
before sight was restored. The
data we have on this question
derive from medical reports
over a few centuries, gathered
together in a book by M. von
Senden in 1932. Unfortunately,
the attending physicians
generally did not ask the
appropriate questions or
perform the appropriate
experiments. To be valid and
useful cases, the patients had
to be totally blind in both eyes
from birth, to recover vision in
at least one eye through the
removal of the lens containing
an opacity (cataract), to be old
enough to answer questions, to
be successfully fitted with a
new lens capable of yielding an
adequately focused image, and
to have recovered from the
trauma of the surgery. Few of
the recorded cases fulfill these
requirements; those that do are
ambiguous as to their
implications. Nowadays, few
such cases are recorded in the
literature because, among
populations in which the issue
is likely to be studied, surgery
is performed early in infancy if
it can be performed at all.