Can vibration-induced illusions be used as a muscle perception test for normal and cerebral-palsied children?
Since poor control of muscle contractions in cerebral palsy may be due partly to defective processing of data originating from muscle, the need arose for a test as uncontaminated as possible by other afferent effects. For 18 normal children, vibration of the brachial biceps tendon always gave the illusion of elbow extension; when the triceps was vibrated the opposite illusion occurred. For 22 cerebral-palsied children the vibration test was successful for 26 elbows and failed for 18. These failures might provide a future explanation for certain therapeutic failures.
D000293:Adolescent; D002547:Cerebral Palsy / Q000503:physiopathology*; D002648:Child; D005260:Female; D006801:Humans; D007088:Illusions; D007699:Kinesthesis; D008297:Male; D009068:Movement; D009119:Muscle Contraction; D009132:Muscles / Q000503:physiopathology*; D014732:Vibration