Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Alzheimer's Disease(also: Alzheimer's, AD)
- A progressive neurodegenerative disease and the most common cause of dementia, accounting for 60-80% of cases. Alzheimer's disease causes gradual decline in memory, thinking, and reasoning skills, eventually affecting the ability to perform everyday activities. The condition…
- Cognitive Impairment(also: Cognitive Disability, Intellectual Disability, Cognitive Decline)
- A broad category encompassing conditions that affect cognitive functions such as memory, attention, language, problem-solving, and executive function. Cognitive impairments range from mild (noticeable but not interfering significantly with daily life) to severe, and may be…
- Visual Stress Syndrome(also: Meares-Irlen Syndrome, Irlen Syndrome, Scotopic Sensitivity Syndrome)
- A perceptual processing condition characterized by symptoms of visual distortion, discomfort, and fatigue when reading text, particularly black text on white backgrounds. Individuals with visual stress syndrome experience distortions such as letters appearing to move, merge, or…
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