Prototype tests of vertical and torsional alignment nulling for screening vestibular function
| Autor: | Brian T. Peters, Jacob J. Bloomberg, Helen S. Cohen, Jasmine Stitz, Haleh Sangi-Haghpeykar, Michael C. Schubert, Ajitkumar P. Mulavara |
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| Rok vydání: | 2017 |
| Předmět: |
Adult
Male 0301 basic medicine medicine.medical_specialty Rotation Vestibular evoked myogenic potential Vestibular disorders Audiology Horizontal line test Article 03 medical and health sciences 0302 clinical medicine Orientation medicine Humans Saccule and Utricle Aged Vestibular system business.industry General Neuroscience Ocular Vestibular Evoked Myogenic Potentials Middle Aged Vestibular Function Tests Vestibular Evoked Myogenic Potentials Healthy Volunteers Sensory Systems Ocular alignment Vertical alignment 030104 developmental biology medicine.anatomical_structure Vestibular Diseases Otorhinolaryngology Computers Handheld Female Neurology (clinical) Saccule business 030217 neurology & neurosurgery |
| Zdroj: | Journal of Vestibular Research. 27:173-176 |
| ISSN: | 1878-6464 0957-4271 |
| Popis: | BACKGROUND We have developed a non-invasive, behavioral measure of ocular alignment using a computer tablet, colored lenses, and touch screen software. OBJECTIVE The goal of this study was to determine if these tests differentiate healthy controls from patients with vestibular disorders. METHODS In the vertical alignment nulling test (VAN), subjects were asked to adjust a horizontal line that was offset vertically from a fixed horizontal line. In the torsional alignment nulling test (TAN) subjects were asked to adjust a line that was rotationally offset (i.e. clockwise) from a fixed horizontal line. We measured VAN and TAN in 14 healthy controls and 8 patients with known vestibular disorders. RESULTS Patients had significantly worse scores than controls on TAN, (mean 2.2 vs 0.75, p = 0.01), and no differences for scores compared to controls on VAN, (mean 0.4 vs 0.8, p = 0.07). CONCLUSIONS These results suggest that TAN, and possibly VAN, have potential for identifying misalignments in ocular position. After further technical development these tests might be useful in the future for screening patients in facilities that are not equipped to perform cervical and ocular vestibular evoked myogenic potentials. |
| Databáze: | OpenAIRE |
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