Glossary
Searchable terminology from accessibility, web standards, and related fields.
221 results found in Cognitive Accessibility.
- Cognitive Prosthesis (Cognitive Prosthetic, Digital Memory Aid)
- A cognitive prosthesis is a technology-based system designed to supplement or replace cognitive functions that have been impaired due to conditions such as dementia, traumatic brain injury, or other n…
- Cognitive Stimulation (Cognitive Stimulation Therapy, CST)
- A structured programme of activities and discussions designed to engage and stimulate cognitive abilities — including memory, attention, language, and problem-solving — in people with mild to moderate…
- Cognitive Strategy Prompting (Cognitive Scaffolding, Strategy Prompting)
- A design technique that provides cues or prompts within an interface to help users employ effective cognitive strategies for completing tasks, particularly benefiting users experiencing age-related co…
- Cognitively Assistive Robot (CAR)
- A category of socially assistive robot designed specifically to support people with cognitive impairments — most commonly mild cognitive impairment (MCI), dementia, traumatic brain injury, or learning…
- Coh-Metrix
- A web-based tool developed at the University of Memphis that analyses text on more than a hundred measures of language, cohesion, and readability, including referential and semantic cohesion, lexical …
- Coloured Overlay (Colored Overlay, Tinted Overlay, Reading Overlay)
- A transparent coloured sheet placed over text or a digital colour filter applied to a screen to reduce visual stress and improve reading comfort for some people with dyslexia, Meares-Irlen syndrome, o…
- Complementary Cognition
- A theory proposed by Taylor, Fernandes, and Wraight suggesting that the human species has adapted and evolved cognitively to complement each other through cognitive specializations and effective colla…
- Conceptual Model (Mental Model)
- A user's internal understanding of how a system works, including what actions are possible, what the current state is, and what the consequences of actions will be. Conceptual models are critical in a…
- Confabulation (Clinical) (Clinical Confabulation)
- Confabulation in a clinical sense is the unconscious production of fabricated, distorted, or misinterpreted memories without the intent to deceive - the person genuinely believes what they are recount…
- Confirmation Message (Positive Feedback, On-track Feedback, Progress Confirmation)
- A system message that reassures users they are performing a task correctly or are on the right path, as opposed to only providing error messages or corrective instructions. In assistive technology and…
- Constructivism (Constructivist Learning Theory)
- An educational theory that holds that learners actively construct their own understanding and knowledge through experience, exploration, and reflection rather than passively receiving information. In …
- Content Simplification (Content-Level Simplification)
- Simplification approaches that modify the actual informational content of text, including summarization, removal of non-essential details, and restructuring of information presentation. Content simpli…
- Conversational Programming (natural language programming, LLM-driven scene modification)
- Conversational programming is a paradigm in which users modify software behaviour or digital environments through natural language dialogue with an AI system, rather than through traditional developer…
- Conversational Scaffolding (Scaffolded Interaction)
- Human or technology-provided support, prompts, or guidance that helps individuals accomplish communication tasks they might struggle with independently. In voice assistant contexts, scaffolding includ…
- Coreference (Coreference Resolution, Anaphora Resolution)
- The linguistic phenomenon of two or more expressions in a text referring to the same real-world entity — for example, "Sam", "she", and "the scientist" all referring to the same person. Coreference re…
- Cross-modal Congruency
- The temporal, spatial, and semantic alignment of sensory cues during an interaction — for example, a visual event and its accompanying sound occurring at the same moment and in the same location, with…
- Dale-Chall Readability Formula (Dale-Chall, New Dale-Chall)
- A readability formula first published by Edgar Dale and Jeanne Chall in 1948 and revised in 1995. Unlike formulas that rely only on surface counts, Dale-Chall compares every word in a text against a m…
- Decimal System (Base-10 System, Decimal Number System)
- The standard numeral system using ten digits (0-9) where the value of each digit depends on its position, with each position representing a power of ten. Understanding the decimal system requires gras…
- Decision Delay (Cognitive Delay, Selection Delay)
- The time a user spends deciding whether to accept or reject a suggestion from a predictive system, such as a word prediction list on an assistive technology device or keyboard. Decision delay is a cog…
- Deictic Gesture (Pointing Gesture)
- A deictic gesture is a pointing or indicating motion (typically with a finger, but also with gaze, head, or tool) that directs another person's attention to a specific referent in the shared environme…