Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- ADHD(also: Attention Deficit Hyperactivity Disorder, ADD, Attention Deficit Disorder)
- A neurodevelopmental disorder characterized by persistent patterns of inattention, hyperactivity, and impulsivity that interfere with functioning and development. ADHD affects working memory, executive function, and the ability to sustain attention on tasks. For digital…
- Arteriovenous Malformation(also: AVM)
- A tangle of abnormal blood vessels connecting arteries and veins directly, bypassing the normal capillary network. AVMs most often occur in the brain or spinal cord and can rupture, causing hemorrhagic stroke, seizures, or progressive neurological damage. When an AVM affects…
- Attention Deficit Hyperactivity Disorder(also: ADHD)
- A neurodevelopmental disorder characterized by persistent patterns of inattention, hyperactivity, and impulsivity that interfere with functioning and development. ADHD affects approximately 7.6% of children and 6.8% of adults worldwide and has three presentations: predominantly…
- Auditory Processing(also: Auditory Processing Disorder, Central Auditory Processing)
- The brain ability to interpret and make sense of sounds, particularly speech. Auditory processing difficulties—which commonly co-occur with ADHD—can make it challenging to distinguish speech from background noise, process rapid speech, and maintain attention to spoken content.…
- Autism Spectrum(also: Autism Spectrum Disorder, ASD, Autism Spectrum Condition)
- A neurodevelopmental condition characterized by differences in social communication, interaction patterns, and restricted or repetitive behaviors, interests, or activities. The spectrum concept reflects the wide variation in how autism presents—ranging from individuals who need…
- Autism Spectrum Disorder(also: ASD, Autism, Autistic Spectrum Condition)
- A neurodevelopmental condition characterized by differences in social communication and interaction, along with restricted or repetitive patterns of behavior, interests, or activities. Autism exists on a spectrum with widely varying support needs. Many autistic people experience…
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