Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Hyperacusis(also: Decreased sound tolerance)
- A hearing condition in which everyday sounds are perceived as uncomfortably or painfully loud, even at volume levels that are tolerable for most people. Hyperacusis involves a reduced tolerance for the overall volume of sound rather than sensitivity to specific sound types…
- Hypervigilance
- A state of heightened alertness and sensitivity to potential threats in one's environment, commonly associated with PTSD, anxiety disorders, and trauma. Hypervigilant individuals may constantly scan for danger, feel uncomfortable with people behind them, need clear exit routes,…
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