Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Haptic Virtual Reality(also: Haptic VR, Feelable Virtual Environment)
- Haptic virtual reality refers to virtual environments that incorporate touch-based feedback, allowing users to feel virtual textures, shapes, and objects through force-feedback devices. Unlike visual-only VR, haptic VR provides tactile and kinaesthetic information — resistance,…
- Heads-Up Display(also: HUD)
- A transparent or overlay display that presents information in the user's direct line of sight without requiring them to look away from their current viewpoint. Originally developed for aviation, HUDs are widely used in virtual and augmented reality to attach interface elements —…
- Heisenberg Effect(also: Heisenberg Problem)
- In human-computer interaction, a spatial interaction problem where the act of making a selection disrupts the positional accuracy of the cursor or pointer. In virtual reality freehand gesture contexts, the Heisenberg effect occurs when the physical movement required to confirm a…
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