Vestibular evoked myogenic potentials in response to lateral skull taps are dependent on two different mechanisms

Brantberg, Krister; Westin, Magnus; Löfqvist, Lennart; Verrecchia, Luca; Tribukait, Arne

doi:10.1016/j.clinph.2009.03.008

Cited by 28 publications

(35 citation statements)

References 17 publications

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“…Previous studies have shown similar side-to-side differences to those reported here for the cVEMP and oVEMP using impulsive (tap-like) acceleration delivered to the side of the head [Brantberg et al, 2003;Todd et al, 2008;Rosengren et al, 2009]. For the cVEMP, stimulation at the mastoid produced an ipsilateral positive/negative potential and a contralateral negative/positive potential; however, the initial contralateral negativity was seen in only some subjects.…”

Section: Discussionsupporting

confidence: 84%

“…Brantberg and colleagues [Brantberg and Tribukait, 2002;Brantberg et al, 2003Brantberg et al, , 2009 tapped over the parietal bone on both sides of the head and recorded cVEMPs with different polarity in each SCM. Rosengren et al [2009] found similar differential responses using both taps and pulses of acceleration delivered to each mastoid with a minishaker.…”

Section: Introductionmentioning

confidence: 99%

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Cervical and Ocular Vestibular Evoked Myogenic Potentials Are Sensitive to Stimulus Phase

Cai¹,

Rosengren²,

Colebatch³

2010

Audiol Neurotol

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Sinusoidal forces with frequencies of 100 and 500 Hz and initial positive or negative polarities were delivered to the mastoids and Fz in normal subjects. We investigated whether the cVEMPs and oVEMPs evoked were sensitive to the polarity (phase) of vibration. With mastoid stimulation at 100 Hz, medial head acceleration produced cVEMPs with earlier latency (15.5 ms) than lateral acceleration (19.7 ms) and oVEMPs with later latency (13.8 ms) than lateral acceleration (10.6 ms). As the stimulus frequency increased, the difference in latency decreased, but was still present at 500 Hz. A similar pattern occurred following stimulation at Fz. Our results show that the initial direction of bone-conducted vibration affects both cVEMP and oVEMP properties even at relatively high frequencies.

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Section: Discussionsupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Cervical and Ocular Vestibular Evoked Myogenic Potentials Are Sensitive to Stimulus Phase

Cai¹,

Rosengren²,

Colebatch³

2010

Audiol Neurotol

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“…However, recent studies suggest that the physiological basis of VEMP testing may be more complex. Laterally directed head impulsive translations which stimulate the utricle can evoke both cVEMPs and oVEMPs, suggesting the presence of both utriculo-collic and utriculo-ocular projections (Brantberg et al 2008;Brantberg et al 2009). Both sound and vibration can stimulate both otoliths; the responses appear to be driven by the frequency of the stimulus matching the intrinsic best frequency of each otolith organ (Zhang et al 2011;Zhang et al 2012).…”

Section: Discussionmentioning

confidence: 99%

Clinical Testing of Otolith Function: Perceptual Thresholds and Myogenic Potentials

Agrawal

Bremova-Ertl

Kremmyda

et al. 2013

JARO

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Cervical and ocular vestibular-evoked myogenic potential (cVEMP/oVEMP) tests are widely used clinical tests of otolith function. However, VEMP testing may not be the ideal measure of otolith function given the significant inter-individual variability in responses and given that the stimuli used to elicit VEMPs are not physiological. We therefore evaluated linear motion perceptual threshold testing compared with cVEMP and oVEMP testing as measures of saccular and utricular function, respectively. A multi-axis motion platform was used to measure horizontal (along the inter-aural and nasooccipital axes) and vertical motion perceptual thresholds. These findings were compared with the vibration-evoked oVEMP as a measure of utricular function and soundevoked cVEMP as a measure of saccular function. We also considered how perceptual threshold and cVEMP/ oVEMP testing are each associated with Dizziness Handicap Inventory (DHI) scores. We enrolled 33 patients with bilateral vestibulopathy of different severities and 42 controls to have sufficient variability in otolith function. Subjects with abnormal oVEMP amplitudes had significantly higher (poorer) perceptual thresholds in the inter-aural and naso-occipital axes in age-adjusted analyses; no significant associations were observed for vertical perceptual thresholds and cVEMP amplitudes.Both oVEMP amplitudes and naso-occipital axis perceptual thresholds were significantly associated with DHI scores. These data suggest that horizontal perceptual thresholds and oVEMPs may estimate the same underlying physiological construct: utricular function.

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“…In contrast, when the stimulus has a lower dominant frequency, such as a tendon hammer tap, the skull acceleration is approximately equal on both sides but is oppositely-directed (e.g. both sides move away from the hammer, causing the ipsilateral ear to move medially and the contralateral ear to move laterally) and the cVEMPs have similar size but different polarity and/or peak latency in the ipsilateral and contralateral SCM muscles (Brantberg et al, 2002(Brantberg et al, , 2003(Brantberg et al, , 2008(Brantberg et al, , 2009Cai et al, 2011;Rosengren et al, 2009;Todd et al, 2008). Therefore different types of AC and BC stimulation probably activate distinct, although often overlapping, populations of vestibular otolith afferents.…”

Section: Introductionmentioning

confidence: 99%

Single motor unit responses underlying cervical vestibular evoked myogenic potentials produced by bone-conducted stimuli

Rosengren¹,

Colebatch²,

Straumann³

et al. 2015

Clinical Neurophysiology

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Vestibular evoked myogenic potentials in response to lateral skull taps are dependent on two different mechanisms

Cited by 28 publications

References 17 publications

Cervical and Ocular Vestibular Evoked Myogenic Potentials Are Sensitive to Stimulus Phase

Cervical and Ocular Vestibular Evoked Myogenic Potentials Are Sensitive to Stimulus Phase

Clinical Testing of Otolith Function: Perceptual Thresholds and Myogenic Potentials

Single motor unit responses underlying cervical vestibular evoked myogenic potentials produced by bone-conducted stimuli

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