Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Sensorimotor(also: Sensorimotor System, Sensorimotor Control)
- Relating to the integration of sensory input (proprioception, vision, touch) with motor output (muscle activation and coordinated movement). Sensorimotor processes let people plan, execute, and correct movements in real time, usually without conscious effort. Neurological and…
- Spasm(also: Muscle Spasm, Spasticity)
- A sudden, involuntary contraction of a muscle or group of muscles that can cause uncontrolled movement or a temporary inability to move. Spasms are common in conditions such as cerebral palsy, spinal cord injury, and multiple sclerosis. In the context of computer accessibility,…
- Submovement(also: Movement Component, Movement Segment)
- A discrete component of a larger aimed movement, separated from other submovements by pauses or changes in velocity. According to the Optimized Submovement Model from motor performance theory, a rapid aimed movement such as moving a cursor to a target consists of an initial…
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