home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Illusion - Is Seeing Really Believing?
/
Illusion - Is Seeing Really Believing (1998)(Marshall Media)[Mac-PC].iso
/
pc
/
illusion
/
rock_txt.cxt
/
00172_Text_res15t.txt
< prev
next >
Wrap
Text File
|
1997-02-04
|
1KB
|
36 lines
Eleanor Gibson and Richard
Walk at Cornell University
invented an ingenious solution
to these problems by making
use of the innate fear of height.
One might assume that even a
newly born organism would
show some fear of height,
which is simply distance in a
downward direction, if it could
perceive that height. The
investigators placed the animal
on an opaque strip in the
middle of a large sheet of glass.
This strip, seen in the
photograph to the left, becomes
a "visual cliff." On one side,
there is a deep visual drop to
the surface; on the other side,
there is an opaque surface
directly underneath, signifying
no depth at all. The glass on
both sides of the strip is from
the same pane, equal in support
and physical texture, but the
view through the glass is quite
different on the two sides.
When placed on the center
strip, is the subject equally
likely to move off it to either
side (implying no depth
perception or no fear of
height), or is it more likely to
move off only to the "shallow"
side?