A PRIMAL CONCEPT
Shape is one of the basic building blocks of our visual world. A shape is a discrete or separated formation of edges that is perceived as an individual element. Part of our makeup as humans is that we apply our powers of recognition to shapes we are presented with. We are prone to find shapes that have meaning to us, such as faces, figures, and animals. We are also sensitive to geometric formations and regularities. Our proclivity to try to attach recognizable referents to indeterminate shapes is used in psychological practice in the famous Rorschach test in which individuals are asked to describe what imagery they can find in a series of ink blots.
This approach was named after Étienne de Silhouette ...