excellent opportunities for this kind of pattern recognition.
Their contours are complex, and a change in lighting, viewing angle, or attention can alter the shapes we think we recognize.
The mountain in this photograph is not necessarily hiding a deliberately created picture.
Instead, our perceptual systems may be giving recognizable meaning to its natural forms.
WHY YOU MAY NOT SEE WHAT EVERYONE ELSE SEES
Some visual puzzles contain a clearly designed secondary picture.
Others depend more heavily on imagination, suggestion, and individual interpretation.
In thisphotograph, the supposed figures are not
