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Oscillatory neural responses evoked by natural vestibular stimuli in humans

Gale, Steven and Prsa, Mario and Schurger, Aaron and Gay, Annietta and Paillard, Aurora and Herbelin, Bruno and Guyot, Jean-Philippe and Lopez, Christophe and Blanke, Olaf (2016) Oscillatory neural responses evoked by natural vestibular stimuli in humans. Journal of Neurophysiology, 115 (3). pp. 1228-1242. ISSN 0022-3077

Type of Research: Article
Creators: Gale, Steven and Prsa, Mario and Schurger, Aaron and Gay, Annietta and Paillard, Aurora and Herbelin, Bruno and Guyot, Jean-Philippe and Lopez, Christophe and Blanke, Olaf
Description:

Abstract:

While there have been numerous studies of the vestibular system in mammals, less is known about the brain mechanisms of vestibular processing in humans. In particular, of the studies that have been carried out in humans over the last 30 years, none has investigated how vestibular stimulation (VS) affects cortical oscillations. Here we recorded high-density electroencephalography (EEG) in healthy human subjects and a group of bilateral vestibular loss patients (BVPs) undergoing transient and constant-velocity passive whole body yaw rotations, focusing our analyses on the modulation of cortical oscillations in response to natural VS. The present approach overcame significant technical challenges associated with combining natural VS with human electrophysiology and reveals that both transient and constant-velocity VS are associated with a prominent suppression of alpha power (8–13 Hz). Alpha band suppression was localized over bilateral temporo-parietal scalp regions, and these alpha modulations were significantly smaller in BVPs. We propose that suppression of oscillations in the alpha band over temporo-parietal scalp regions reflects cortical vestibular processing, potentially comparable with alpha and mu oscillations in the visual and sensorimotor systems, respectively, opening the door to the investigation of human cortical processing under various experimental conditions during natural VS.

Official Website: http://jn.physiology.org/content/115/3/1228
Keywords/subjects not otherwise listed: EEG, vestibular cortex, vestibular processing
Publisher/Broadcaster/Company: American Physiological Society
Your affiliations with UAL: Colleges > London College of Fashion
Date: 1 March 2016
Digital Object Identifier: 10.1152/jn.00153.2015
Related Websites: https://www.ncbi.nlm.nih.gov/pubmed/26683063
Date Deposited: 18 Oct 2016 15:42
Last Modified: 19 Oct 2016 11:15
Item ID: 10441
URI: http://ualresearchonline.arts.ac.uk/id/eprint/10441

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