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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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00367_Text_rem16t.txt
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1996-12-31
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INDUCED SELF-MOTION
Slow displacement of an
adjacent train is often
experienced as motion in the
opposite direction of the train
in which we are sitting. The
adjacent train then appears to
be stationary.
We ourselves sometimes
undergo induced motion. When
we are in a stationary train and
a train on the adjacent track is
in motion, for example, we
often misperceive which train
is actually moving. A similar
effect occurs when we stop for a
light in a car. If a car alongside
ours begins to roll backward,
we often perceive our own car
to be rolling forward and step
on the brakes. When we look
down at the water current from
a stationary boat or from a pier,
we sometimes experience
ourselves as in motion.
Induced motion of the self
was demonstrated in the
Haunted Swing Illusion, an
exhibition at an 1894 fair in
San Francisco. Observers sat in
a large seat suspended by ropes.
The seat seemed to swing back
and forth in ever increasing
arcs until eventually it turned
upside down. No one fell offΓÇöΓÇô
for the simple reason that the
swing only moved slightly. It
was the room that swung back
and forth. The people on the
swing experienced themselves
as in motion and the room as
stationary. In this example, the
induction effect is powerful
enough to overcome
information based on gravity,
which indicates that the
observers are not tilting or
inverting and that the room is
tilting from the upright.