The material presented is excerpted from patient evaluations. The study was performed with the use of the Contraves rotary chair. This testing modality was used at each patient visit. All other conventional auditory and ENG tests were also performed. These patients have been selected to illustrate the value of the harmonic acceleration (HA) test as a modality for monitoring patient progress. The HA graphs produced were a result of the presence or absence of central vestibular compensation. The findings on these investigations further confirm that HA tests provide an objective monitor for vestibular abnormality.
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