Texture Differentiation

The ability to perceive and distinguish between different textures through touch. In the context of tactile graphics, texture differentiation is the fundamental perceptual capacity that allows readers to identify different regions and understand the information encoded in a tactile diagram. Factors that influence texture differentiation include the physical properties of the textures (roughness, height, density, pattern), the spacing between textured regions, and the reader's tactile sensitivity and experience. Maximizing texture differentiation is a primary goal of tactile graphic design.