Electrical vestibular stimuli evoke robust muscle activity in deep superficial neck muscles in humans

Researcher(s)

Patrick Forbes, Gunter Siegmund, Jean-Sébastien Blouin

Journal

Frontiers of Neurology

Date of Publication

Details

Congratulations to Cluster Members Patrick Forbes, Gunter Siegmund and Jean-Sebastian Blouin on the publication of their paper "Electrical vestibular stimuli evoke robust muscle activity in deep superficial neck muscles in humans" in Frontiers of Neurology. 

Neck muscle activity evoked by vestibular stimuli is a clinical measure for evaluating the function of the vestibular apparatus. Cervical vestibular-evoked myogenic potentials (cVEMP) are most commonly measured in the sternocleidomastoid muscle (and more recently the splenius capitis muscle) in response to air-conducted sound, bone-conducted vibration or electrical vestibular stimuli. It is currently unknown, however, whether and how other neck muscles respond to vestibular stimuli. Here we measured activity bilaterally in the sternocleidomastoid, splenius capitis, sternohyoid, semispinalis capitis, multifidus, rectus capitis posterior, and obliquus capitis inferior using indwelling electrodes in two subjects exposed to binaural bipolar electrical vestibular stimuli. All recorded neck muscles responded to the electrical vestibular stimuli (0-100 Hz) provided they were active. Furthermore, the evoked responses were inverted on either side of the neck, consistent with a coordinated contribution of all left-right muscle pairs acting as antagonists in response to the electrically-evoked vestibular error of head motion. Overall, our results suggest that, as previously observed in cat neck muscles, broad connections exist between the human vestibular system and neck motoneurons and highlight the need for future investigations to establish their neural connections.

External Link

Read the Research Paper


  • Publication

First Nations land acknowledegement

The UBC Point Grey campus is situated on the traditional, ancestral, and unceded territory of the xʷməθkʷəy̓əm.


UBC Crest The official logo of the University of British Columbia. Urgent Message An exclamation mark in a speech bubble. Caret An arrowhead indicating direction. Arrow An arrow indicating direction. Arrow in Circle An arrow indicating direction. Arrow in Circle An arrow indicating direction. Chats Two speech clouds. Facebook The logo for the Facebook social media service. Information The letter 'i' in a circle. Instagram The logo for the Instagram social media service. External Link An arrow entering a square. Linkedin The logo for the LinkedIn social media service. Location Pin A map location pin. Mail An envelope. Menu Three horizontal lines indicating a menu. Minus A minus sign. Telephone An antique telephone. Plus A plus symbol indicating more or the ability to add. Search A magnifying glass. Twitter The logo for the Twitter social media service. Youtube The logo for the YouTube video sharing service.