The vestibular implant: frequency-dependency of the electrically evoked vestibulo-ocular reflex in humans

doi:10.3389/fnsys.2014.00255

Эндаумент фонд ТГУ!
Впиши своё имя в историю университета
- Сделать пожертвование -

Add to "Quick Collection"

Description	Size	Format
The vestibular implant: frequency-dependency of the electrically evoked vestibulo-ocular reflex in humans	12 MB	Adobe Acrobat PDF	Read	Download
DOI Доступ к ресурсу на сайте издателя			10.3389/fnsys.2014.00255

#вестибулярные импланты

#вестибулярно-глазной рефлекс

Title: The vestibular implant: frequency-dependency of the electrically evoked vestibulo-ocular reflex in humans
Creator: van de Berg, Raymond
|
Nguyen, T. A. Khoa
|
Ranieri, Maurizio
|
Cavuscens, Samuel
|
Guyot, Jean-Philippe
|
Stokroos, Robert
|
Kingma, Herman
|
Perez Fornos, Angelica
|
Guinand, Nils
Date: 2015
DOI: 10.3389/fnsys.2014.00255
Description: The vestibulo-ocular reflex (VOR) shows frequency-dependent behavior. This study investigated whether the characteristics of the electrically evoked VOR (eVOR) elicited by a vestibular implant, showed the same frequency-dependency. Twelve vestibular electrodes implanted in seven patients with bilateral vestibular hypofunction (BVH) were tested. Stimuli consisted of amplitude-modulated electrical stimulation with a sinusoidal profile at frequencies of 0.5, 1, and 2 Hz. The main characteristics of the eVOR were evaluated and compared to the "natural" VOR characteristics measured in a group of age-matched healthy volunteers who were subjected to horizontal whole body rotations with equivalent sinusoidal velocity profiles at the same frequencies. A strong and significant effect of frequency was observed in the total peak eye velocity of the eVOR. This effect was similar to that observed in the "natural" VOR. Other characteristics of the (e)VOR (angle, habituation-index, and asymmetry) showed no significant frequency-dependent effect. In conclusion, this study demonstrates that, at least at the specific (limited) frequency range tested, responses elicited by a vestibular implant closely mimic the frequency-dependency of the "normal" vestibular system.

Relationships: Show Relationship Browser for this Object
collection(s): Физический факультет
Identifier: смотреть в электронном каталоге НБ ТГУ
Relation: Frontiers in systems neuroscience
Type: статьи в журналах
Source: Frontiers in systems neuroscience. 2015. Vol. 8, Art. № 255. P. 1-12
Language: eng

Created: 23-06-2017

2539 Visitors

2362 Hits

200 Downloads

Физический факультет The vestibular implant: frequency-dependency of the electrically evoked vestibulo-ocular reflex in humans