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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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00384_Text_re52t.txt
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1997-02-04
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920b
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30 lines
Students of perception have
not done much better in their
attempts to explain this
illusion of motion. In the
laboratory, apparent motion
(also referred to as stroboscopic
motion or the phi
phenomenon) is studied in its
utmost simplicity by flashing a
single object or line in one
place, and then, a short time
later, flashing a similar object
or line in another place. If the
spacing and timing are just
right, the observer will see the
object or line moving from the
first location to the second
(from A to B in the illustration
at left). Usually, the cycle is
repeated and the observer sees
the object moving back and
forth. Why do we tend to see
movement when the stimulus
consists of one stationary
object followed by another? The
presumption is that, if we can
unravel this problem, it will
provide a key for understanding
motion perception in general.