The horse is not presented as a complete animal standing in the landscape. Instead, it is created by the lines, shadows, and contrasts within the scene itself. The brain must shift from searching for an object to recognizing a silhouette formed by the environment.
This is why many viewers stare directly at the horse for several seconds without noticing it.
Tips that help reveal the hidden shape
If you are still searching, a few simple tricks can make the difference.
First, step back and look at the image as a whole rather than focusing on small details. Hidden silhouettes often appear more clearly when you view the larger shapes.
Next, pay attention to contrasts between light and dark areas. Optical illusions frequently use these transitions to outline hidden forms.
See more on the next page
