Glossary

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Tactile Acuity(also: Touch Acuity, Tactile Resolution)

The ability to perceive and discriminate fine spatial details through the sense of touch, analogous to visual acuity for sight. Tactile acuity varies across body regions, with fingertips having the highest resolution at approximately 1-2mm spacing. In the context of…

Tactile Modeling(also: Tactile Demonstration, Touch Demonstration)

A body movement teaching technique where a blind or low vision student explores and inspects a demonstrator's body position through touch, allowing them to understand poses, movements, and form that would typically be learned through visual observation. Unlike physical guidance…

Tactile Replica(also: 3D Replica, Touchable Replica, Haptic Replica)

A physical reproduction of an artwork or exhibit object, often created using 3D printing or traditional sculpting techniques, designed to be touched and explored by hand. Tactile replicas are a key accessibility strategy in museums and galleries for blind and low vision…

Tactile graphics(also: Raised-line graphics, Touch graphics)

Physical representations of visual information using raised surfaces, textures, and patterns that can be explored through touch. Tactile graphics are essential for conveying spatial and graphical information — maps, charts, diagrams, mathematical graphs — to blind and visually…

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