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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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00057_Field_57.txt
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1996-12-31
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763b
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27 lines
Size Constancy: The Taking-
into-Account Explanation
Objects of the same size seen at
different distances: size
constancy is achieved if the
distances are correctly taken
into account.
Because of the weaknesses in
the stimulus-relation
explanation of size constancy,
some investigators have
rejected it in favor of an
inference explanation, in
which distance is taken into
account in size perception.
According to this theory, the
perceptual system--the system
in the brain that is concerned
with perception--engages in an
operation of computation that
includes both an objectΓÇÖs visual
angle and its perceived
distance. (The actual cues we
use to determine an objectΓÇÖs
distance will be discussed in
Chapter 3.)