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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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1997-02-04
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985b
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33 lines
After all, the illusion here is
only an illusion in a picture.
Although viewing pictures may
be an important part of
perception in everyday life,
perception of the world is far
more important. In this scene,
the extents that look different
in length would be different in
length in the world. We would
not describe that perception as
illusory, even though the
lengths between the images of
lines on the retina is equal.
Illusions must be defined as a
discrepancy between what is
perceived and what is
objectively present in the
world, not as a discrepancy
between what is in the retinal
image and what is present in
the world. However, as we have
already seen and will see in
subsequent chapters,
perception in daily life is shot
through with illusions,
including those of the
geometrical kind to be
addressed in this chapter.
Sometimes we are aware of
them, but more often we are
notΓÇöΓÇôfor the simple reason that