PSYC 3230 Lecture Notes - Lecture 7: Botulinum Toxin, Augmentative, Occupational Therapy
4 Apr 2016
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Document Summary
Cerebral palsy: heterogeneous group of conditions that involve disorder of movement or posture. Due to non-progressive damage or abnormality to the brain. Varies in severity: mild (clumsy, difficulty with handwriting), to severe (wheelchair. Typically diagnosed in the first 2 years of life, but may be somewhat later, especially in milder forms. Different types of cp: based on nature of the motor deficit. 70 to 80% of those with cp have spastic types. Spasticity is when muscles are stiff and permanently contracted with high muscle tone (hypertonicity). Spastic quadriplegia= paralysis in all four limbs. Usually associated with mental retardation, as there is significant brain damage. Spastic diplegia (paraplegia)= lower limbs more involved than upper limbs. Spastic hemiplegia= one side of the body. Chorea: brief, random, purposeless, rhythmic but non-patterned movements. Athetosis: constant, slow, involuntary, writhing (snake-like) movement of fingers/hands or feet/toes. Dystonia: fluctuations in tone in stiff movements. Involuntary movement is a result of dysfunction in the extrapyramidal motor system.
