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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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00193_Field_193.txt
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1996-12-31
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35 lines
swiveled back in order to
continue looking directly at
the portraitist. If, however,
while the person (not the
picture of the person) held
either of these directions of
gaze, we were to view him or
her from the side, the person
would obviously no longer seem
to be looking at us. But when we
view the picture of the person
from the side, the direction of
the personΓÇÖs gaze remains
unchanged. In my opinion, this
is the main reason for the
curious effect. Of course, as we
move to the side, the projection
of the eye and head in the
picture will become distorted
and our perceptual system will
correct for these distortions so
that the shape of the eye and
head will be perceived
veridically. This step of
correction is no doubt part of
the explanation, but the effect
will occur even without such
correction. The perceived
direction of the personΓÇÖs gaze is
not altered very much if at all
even while other kinds of
distortion occur from abnormal
positions of viewing (e.g., the
shape of the image of the entire
eye changes).