Restoring Visual Acuity in Dynamic Conditions with a Vestibular Implant
| Autor: | Samuel Cavuscens, H. Kingma, Nils Guinand, Maurizio Ranieri, Raymond van de Berg, Angelica Perez Fornos, Robert J. Stokroos, Jean-Philippe Guyot, Marco Pelizzone |
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| Přispěvatelé: | MUMC+: HZC Audiologisch Centrum Maastricht (9), KNO, MUMC+: MA Keel Neus Oorheelkunde (9), MUMC+: MA AIOS Keel Neus Oorheelkunde (9), RS: MHeNs - R1 - Cognitive Neuropsychiatry and Clinical Neuroscience, MUMC+: HZC Vestibulogie (9), RS: MHeNs - R3 - Neuroscience |
| Rok vydání: | 2016 |
| Předmět: |
Dynamic visual acuity
medicine.medical_specialty Visual acuity medicine.medical_treatment Audiology 03 medical and health sciences 0302 clinical medicine Cochlear implant Bilateral vestibular loss Medicine vestibular implant Treadmill electrical stimulation 030223 otorhinolaryngology Original Research dynamic visual acuity bilateral vestibular loss Vestibular system Vestibulo-ocular reflex business.industry General Neuroscience cochlear implant Repeated measures design ddc:616.8 vestibulo-ocular reflex Electrical stimulation Reflex Implant Vestibulo–ocular reflex medicine.symptom business 030217 neurology & neurosurgery Neuroscience Vestibular implant |
| Zdroj: | Frontiers in Neuroscience, Vol. 10 (2016) Frontiers in Neuroscience Frontiers in Neuroscience, 10:577. Frontiers Media S.A. |
| ISSN: | 1662-453X |
| DOI: | 10.3389/fnins.2016.00577 |
| Popis: | Vestibular implants are devices designed to rehabilitate patients with a bilateral vestibular loss (BVL). These patients lack a properly functioning vestibulo-ocular reflex (VOR), which impairs gaze stabilization abilities and results in an abnormal loss of visual acuity (VA) in dynamic situations (i.e., severely limiting the patient's ability to read signs or recognize faces while walking). We previously demonstrated that the VOR can be artificially restored in a group of BVL patients fitted with a prototype vestibular implant. This study was designed to investigate whether these promising results could be translated to a close-to reality task, significantly improving VA abilities while walking. Six BVL patients previously implanted with a vestibular implant prototype participated in the experiments. VA was determined using Sloan letters displayed on a computer screen, in four conditions: (1) with the patient standing still without moving (static), (2) while the patient was walking on a treadmill at constant speed with the vestibular implant prototype turned off (systemOFF), (3) while the patient was walking on a treadmill at constant speed with the vestibular implant prototype turned on providing coherent motion information (systemON(motion)), and (4) a "placebo" condition where the patient was walking on a treadmill at constant speed with the vestibular implant prototype turned on providing reversed motion information (systemON(sham)). The analysis (one-way repeated measures analysis of variance) revealed a statistically significant effect of the test condition [F-(3,F- 12) = 30.5. p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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