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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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00040_Text_ref27t.txt
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1996-12-31
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A gradient of texture density:
the projection of the peopleΓÇÖs
faces as they crowd the Coney
Island beach is increasingly
dense from the bottom to the
top of the picture.
Gibson argued that perceptions
such as those of planes in depth
and constancy of size are based
on more abstract features of the
stimulus than earlier workers
in the psychophysical tradition
had considered. For example, it
was maintained that the
stimulus correlate of our
perception that the plane of the
ground recedes into depth is a
gradient in the texture in that
plane, not the appearance of
separate objects located at
different distances from one
another on that plane. In the
photograph to the left, the
density of the faces of people
standing on the beach
increases from the bottom of
the picture (representing the
foreground) to the top
(representing the more distant
ground). This texture-density
gradient is the stimulus for the
plane of the ground, and the
steepness of the gradient is the
stimulus for its apparent slant.C