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Titre : | Characterizing the frequency tuning properties of air-conduction ocular vestibular evoked myogenic potentials in healthy individuals (2013) |
Auteurs : | Niraj Kumar Singh ; Animesh Barman |
Type de document : | Article |
Dans : | International Journal of Audiology IJA (Vol.52, n°12, December 2013) |
Langues: | Anglais |
Résumé : | Objective: Inconsistencies regarding frequency tuning of ocular vestibular evoked myogenic potentials (oVEMP) prompted the present study to aim at characterizing frequency tuning of oVEMP in healthy individuals. Design: Normative study. Study sample: The study was conducted to obtain oVEMP responses from 54 healthy individuals in age range of 1830 years. The responses were acquired for tone-bursts at octave and mid-octave frequencies from 250 to 2000 Hz from the inferior oblique muscle using contralateral electrode placement. The frequencies were compared for amplitude and threshold. Results: oVEMPs were present in 100% of individuals at or below the frequency of 1000 Hz. The responses had maximum amplitude and lowest thresholds at 500 Hz. There were at least two replicable peak-complexes namely n1-p1 and p1-n2. Both these complexes revealed tuning at 500 Hz. Comparison between the two peak-complexes revealed higher amplitudes and lower thresholds for p1-n2 complex. Conclusions: oVEMPs are tuned to 500 Hz for both peak-complexes, with p1-n2 being more robust. Future studies using the threshold of oVEMP may be better suited to use p1-n2 complex for this purpose, provided vestibular origin of the second complex is proved. Additionally, careful use of tuning property is recommended when evaluating pathological conditions. |
Accès : | Contactez la bibliothèque d'Ixelles si le lien vers la ressource électronique ne fonctionne plus |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.tandfonline.com/doi/full/10.3109/14992027.2013.822994 |
Exemplaires (1)
Cote | Support | Localisation | Section | Disponibilité |
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International journal of audiology IJA. Vol.52, n°12 (December 2013) | Périodique papier | Ixelles | Rez | Consultation sur place uniquement Exclu du prêt |