The brain creates 3D images using line patterns made up of shades
In an article, the newspaper "Giessener Anzeiger" reports on research conducted by JLU Giessen and Yale University, quoting Roland W. Fleming.
Shading brings 3D shapes to life by highlighting the shape of objects around us. Although shading is so important to our perception, scientists have long puzzled over how the human brain uses it. Research now shows that our brain creates 3D images with the help of line patterns from shading. "Our brain is looking for lines", explains JLU perception researcher Prof. Roland W. Fleming.
The full article can be found here.