Glossary
Searchable terminology from accessibility, web standards, and related fields.
45 results found in perception.
- Tactile Texture (Haptic Texture)
- The surface quality of a material or graphic element as perceived through touch, characterized by properties such as roughness, smoothness, density, height, pattern regularity, and directionality. In …
- Telepresence
- The extent to which a user feels present in a remote or virtual environment rather than their actual physical location. In VR contexts, telepresence describes the sensation of being transported to the…
- Texture Differentiation (Tactile Discrimination)
- 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…
- Two-Point Discrimination (Spatial Acuity, Tactile Acuity)
- A measure of tactile sensitivity indicating the minimum distance at which two distinct points of contact on the skin can be perceived as separate rather than as a single point. Lower values indicate h…
- Visual Cognition (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 allocati…