Surface Shape and Softness (04-18-24)
How does the surface shape of what is touched influence perceived softness? Wang, Sun, and Okamoto found that “When a human strokes the surface of an object with his/her finger, the surface shape influences the perceived softness of the object. . . . When a surface with curvature is felt by sliding a finger over it, it feels softer than a flat surface made of the same material. In contrast, a rugged surface is perceived as harder.