Ambiguous images have more than one image in
them. An ambiguous illusion may show you a
picture with the words, "What do you see?" under
it. That is because two people could look at the
same picture, but see something different.
Although you may be able to flip back and forth
and see both figures, your eyes will not let you
see both at the same time.
One of the most famous illusions of this type
is the old lady/young lady illusion. No one
knows for sure where this illusion originated,
but it was on an anonymous German postcard in
1888 (see picture here).
The figure was later changed by
psychologists and appeared in many journals
in the 1930s. Another way images can be
ambiguous is by depth. In other words, you don’t
know if the object is coming or going. You can
see it both ways, depending on your perspective,
but not at the same time. Other types of
ambiguous illusions include the "talking vase",
"Is it a duck or bunny?" and "Is it a Musician
or a Women".
