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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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ILLUSION
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SROCK_TX.CXT
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00178_Text_res15t.txt
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1996-12-31
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43 lines
The chicks seemed to
perceive the photographs
exactly as we would. Those
trained to peck at mounds
pecked at the photograph with
the shadow at the bottom. Those
trained to peck at depressions
pecked at the photograph with
the shadow at the top. Thus, at
least one pictorial cue is
effective in an animal. Rarely
do animals lower than primates
react to pictures, probably
because they respond directly
to the picture as a two-
dimensional surface rather
than to what the contours on
the surface represent
symbolically. But what is most
astounding about these results
is that half of the chicks in
each group were raised from the
time of hatching in cages
where the light always came
from below. Thus, for these
chicks, if any learning about
the significance of shadow
occurred, it would be the
opposite of what would be
learned under natural
conditions. But whether the
chicks were reared with light
from above or from below, the
result was the same. Shadow at
the top cued depressions, and
shadow at the bottom cued
elevations. If there are no flaws
to be found in this experiment
and the findings can be
confirmed, we must conclude
that cast shadow as a cue to
depth is innate, not learned.