Glossary

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Athetoid(also: Athetosis, Athetoid Movement)

A type of involuntary movement characterised by slow, continuous, writhing motions, particularly affecting the hands, fingers, and face. Athetoid movements are commonly associated with athetoid cerebral palsy, a subtype of cerebral palsy that results from damage to the basal…

Athetosis(also: Athetoid movements)

A movement disorder characterized by slow, involuntary, writhing movements, particularly affecting the hands, feet, and face. Athetosis is one form of dyskinetic cerebral palsy and results from damage to the basal ganglia. People with athetosis often experience difficulty with…

Parkinsonian Tremor(also: Rest Tremor, Parkinson Tremor)

Parkinsonian tremor is an involuntary, rhythmic shaking that occurs primarily at rest and is associated with Parkinson's disease. It is caused by the reciprocal activation of antagonistic muscle groups and typically has a frequency of 4-6 Hz with a harmonic frequency…

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,…

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