6533b836fe1ef96bd12a0979
RESEARCH PRODUCT
Ocular counterrolling. Some practical considerations of a new evaluation method for diagnostic purposes.
R. ThumlerH. VogelR. J. Von Baumgartensubject
medicine.medical_specialtyBest fittingMathematical modelLogarithmEye MovementsComputer sciencebusiness.industryNormal populationPattern recognitionGeneral MedicineVestibular Function TestsTransfer functionModels BiologicalSurgeryOtolithic MembraneOtorhinolaryngologyComputer Science::Computer Vision and Pattern RecognitionEvaluation methodsmedicineCurve fittingHumansArtificial intelligencebusinessOcular counterrollingdescription
Ocular counterrolling (OCR) data taken from the literature (12 publications) were used to test the best fit (least-square fit) of these measurements with respect to three mathematical models: a sine relation between OCR and the lateral tilt stimulus, a complex cosine-square relation, and a logarithmic relation between OCR gain and tilt. The latter proved to be the best fitting function. On the basis of this model, we attempted to define a physiological transfer function between OCR gain and tilt, which could serve as a reference of normal population, assuming healthy subjects for the investigations applied. Comparison of this physiological range with pathological data demonstrated marked differences between them. The mathematical simplicity of a logarithmic model permits rapid analysis of clinical OCR examinations, and a classification of the findings.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1986-11-01 | Acta oto-laryngologica |