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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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00348_Field_348.txt
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1996-12-31
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58 lines
It is at this point that the
second meaning of "past
experience" enters in. Some
investigators have argued that
perspective patterns
containing converging lines
and representations of right
angles abound in the
"carpentered" environments of
industrialized countries but
occur only rarely in the
forests, jungles, and plains of
more primitive societies.
Similarly, young children in
the former environments have
not yet had much exposure to
the kinds of scenes suggested by
geometrical illusions. In short,
the argument is that the less
experience observers have had
with the scenes that yield
perspective projections to the
eye--scenes of roads, railroad
tracks, buildings, rooms, and
the like--the less one can
expect them to fall prey to
illusions that processing
pictures of such scenes
allegedly generates.
What are the facts? Children
are generally more, not less,
prone to illusions. For adults of
differing societies, the answer
depends upon which particular
illusion is investigated and, in
fact, much the same is true for
children. The Ponzo illusion
seems to be stronger in adults
from a European type of
carpentered environment than
in children anywhere or in
adults from a rural
environment. This evidence
thus supports the depth-
processing theory. But the
results are contradictory for
the M├╝ller-Lyer illusion.
Children are more prone to it,
but people in less
industrialized societies are less
prone to it. Children are also
more prone to the Poggendorff
illusion. It should be noted,
however, that these trends are
not always substantiated by
independent studies.