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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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rock_fie.cxt
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00070_Field_70.txt
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1996-12-31
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790b
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28 lines
The results of various
experiments using this
apparatus and method suggest
that the moon illusion is
created just as the taking-into-
account theory predicts: The
apparent size of the moon is
computed from its perceived
distance; as its apparent
distance increases, its size is
perceived to grow. It was shown
that, when a scene was used
that permitted a greater
apparent distance to the
horizon or when cloud cover
was present that added a
"ceiling" to the sky in addition
to the "floor" ordinarily
provided by the terrain, for
example, the moon illusion
increased. Under such
conditions, the magnitude of
the illusion, expressed as a
ratio of the perceived size of
the horizon moon to the
elevated moon, was
approximately 1.5 to 1.