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Glossary

Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.

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Therapeutic Play(also: Play Therapy, Therapeutic Gaming)
The use of play activities, games, toys, or interactive technology as a medium for achieving therapeutic or rehabilitative goals in children. Unlike recreational play, therapeutic play is structured or guided by a therapist to target specific objectives such as exercising…
Thought Diffusion(also: Cognitive Defusion, Defusion)
A technique from Acceptance and Commitment Therapy in which a person creates psychological distance from an intrusive thought by recognizing and naming it as simply a thought, rather than treating it as a fact or a command to act. For example, instead of reacting to the thought…
Trigger Hierarchy(also: Exposure Hierarchy, Fear Hierarchy, Fear Ladder)
A ranked list of situations, objects, or thoughts that trigger OCD anxiety, ordered from least to most distressing as measured by subjective distress ratings (SUDS). Trigger hierarchies are a foundational tool in Exposure and Response Prevention therapy, guiding the gradual…

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