Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Virtual Texture(also: Simulated Texture, Haptic Texture)
- A virtual texture is a computer-generated tactile surface property rendered through a haptic device, simulating the feel of roughness, smoothness, or other surface characteristics without a physical material being present. Virtual textures are created by varying the resistance,…
- Vista Space(also: Vista)
- In Montello's classification of psychological spaces, a Vista is a far-field space that can be visually apprehended from a single vantage point without appreciable locomotion - a horizon view, a city skyline, a mountain panorama. Vista spaces matter to accessibility because they…
- Visual Cognition(also: Visual Processing, Visual Perception)
- The set of mental processes involved in perceiving, interpreting, and responding to visual information, including object recognition, spatial awareness, motion detection, and visual attention allocation. Deaf and hard-of-hearing individuals demonstrate heightened visual…
- Visual Crowding(also: Crowding)
- A perceptual phenomenon in which the presence of nearby flanking characters or objects makes it harder to recognise a target character, especially in peripheral vision or when the target is small, low-contrast, or briefly viewed. Crowding jointly with limited visual span sets an…
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