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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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00368_Text_rem16t.txt
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1996-12-31
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37 lines
Relative change is clearly the
determining factor in these
cases. Unless we have clear
information as to our own
motion, such as when we are
walking, information about the
change in direction of the
surrounding scene will be
ambiguous. It could be the
result of motion of the outer
object or objects, or it could be
the result of our own motion. If
the moving object fills most of
our visual field and no
stationary objects surrounding
the moving one are visible, the
visual experience is essentially
what it would be if we were
moving in a stable
environment.
In the laboratory, induced
self-motion is studied by
seating an observer inside a
rotating drum lined with
stripes. Ideally, the stationary
floor and ceiling are not
visible. If we were in the
observerΓÇÖs place under these
conditions, how could we tell
whether it was the drum that
was turning or we that were
turning while the drum
remained stationary? The
visual input would be highly
ambiguous.