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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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00424_Text_res23ct.txt
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1997-02-04
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This camera eyeΓÇÖs view shows
how a scene appears to subjects
wearing an inverting optical
device when they tilt their
heads slightly.
What, then, does StrattonΓÇÖs
experiment demonstrate about
upright vision? We can grant
that sensory-motor
coordination can adapt to
inverted images and that
tactual and proprioceptive
perception are sufficiently
malleable that these sensations
will, with time, be "captured"
by vision, thus abolishing the
intersensory disharmony that
occurs at the outset. We also
can grant that the optically
altered scene will become
increasingly "normal" in
appearance and that the
environmental scene can
ultimately appear upright with
respect to gravity, but still not
necessarily grant that a change
in perceived egocentric
orientation occurred. My own
reading of StrattonΓÇÖs report is
that the scene continued to
appear upside down in relation
to himself (or at least to his
head) throughout the
experiment.
Consider this report of the
last day of the experiment:
As long as the new
localization of my body was
vivid, the general experience
was harmonious, and
everything was right side up.
But when, for any of the
reasons already givenΓÇöΓÇôan
involuntary lapse into the
older memory-materials, or a
willful recall of these older
formsΓÇöΓÇôthe pre-experimental
localization of my body was
prominently in mind, then as I
looked out on the scene before
me, the scene was
involuntarily taken as the
standard of right directions,
and my body was felt to be in an
inharmonious position with
reference to the rest. I seemed
to be viewing the scene from an
inverted body.