Phrenology. Computer artwork of the side of a head, with the skull divided into numbered regions, consistent with the nineteenth century pseudoscientific practice of phrenology. This theory was based around the belief that the brain was divided into regions which controlled different personality traits. According to someone's character, different parts would be different sizes. The size of these parts would impact upon the shape of the skull and so consequently it was possible to assess someone's personality by feeling bumps on their skull.