Vestibular evoked myogenic responses to amplitude modulated sounds

Bell, Steven L.; Fox, Lee; Bihi, Rachid Id

doi:10.1121/1.3455831

Cited by 9 publications

(26 citation statements)

References 12 publications

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“…oVEMP was recorded using click, 500 Hz short duration tone burst, and 500 Hz mixed amplitude modulated stimuli. Best cVEMP response using a frequency modulation of 39 Hz with 100% amplitude modulation and 10% of frequency modulation depth at 500 Hz short duration tone burst was obtained [14] (see Table 1). …”

Section: Methodsmentioning

confidence: 99%

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Ocular Vestibular Evoked Myogenic Potential Using Different Test Stimuli

Deepak

Bhat

Kumar

2013

ISRN Otolaryngology

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Aim. Ocular Evoked Myogenic Potential (oVEMP) are short latency potentials evoked by higher acoustic stimulation. In this study, we aimed at comparing the click, 500 Hz mixed modulated, and 500 Hz short duration tone burst stimuli using oVEMP. Material. Click, 500 Hz mixed modulated and 500 Hz short duration tone burst stimuli were used for the study. Method. Conventional sampling and conveneint study design were used. Sixty healthy subjects underwent contralateral oVEMP testing maintaining 30 degrees upward gaze. Single channel electrode montage was applied to record oVEMP response. Results. On statistical analysis the three stimuli evoked equal response rates (100%), and when latency of n1 and p1 and peak-peak amplitude were compared, the click evoked showed significantly early latency and lower peak-peak amplitude than the 500 Hz stimuli. Five hundred Hz stimuli did not show significant difference in latency and peak-peak amplitude of n1-p1. Discussion. Thus, 500 Hz stimuli can evoke better latency and peak-peak amplitude. oVEMP has good clinical significance in diagnosing subjects with vestibular dysfunction. To add to the sensitivity of the oVEMP test, 500 Hz stimuli may also be used as it can evoke better oVEMP responses in clinical population with good morphology.

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Section: Methodsmentioning

confidence: 99%

“…At the same time, no difference between the two stimuli with regards to response latency or amplitude was obtained [13]. In addition, higher amplitude responses were seen over a range of modulation frequencies (5, 39, 59, 78, 98, and 122 Hz), and specifically the 39 Hz modulation frequency yielded the largest amplitude response [14]. …”

Section: Introductionmentioning

confidence: 99%

Ocular Vestibular Evoked Myogenic Potential Using Different Test Stimuli

Deepak

Bhat

Kumar

2013

ISRN Otolaryngology

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“…Thus, the ability of airborne infrasound to elicit VEMPs has yet to be tested, and we attempted this for cVEMPs using continuous tones. Two previous studies 8,9 showed that vestibular responses can be elicited with continuous acoustic stimulation. They utilized SAM of midfrequency carriers (250-1000 Hz) with infrasonic and low-frequency modulation rates .…”

Section: Introductionmentioning

confidence: 98%

“…Because of this, recent studies have tested alternative types of stimuli, such as low-frequency tone bursts 7 and continuous tonal stimulation with sinusoidal amplitude modulation (SAM) at low rates. 8,9 In this work, infrasound (f < 20 Hz) was tested as an additional alternative, because vestibular receptor cells 10 and the entire vestibular system 11,12 are most responsive to mechanical vibration at very low frequencies. Also, as the transport of acoustic energy from the oval window to the otolith hair cells is impeded by fluid inertia, an effect that declines towards lower frequencies with 6 dB/octave, it might be expected that more acoustic energy reaches the otoliths at low frequencies.…”

Section: Introductionmentioning

confidence: 99%

On the Effectiveness of airborne infrasound in eliciting vestibular-evoked myogenic responses

Jurado

Marquardt

2019

Journal of Low Frequency Noise, Vibration and Active Control

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The use of airborne infrasound and other stimuli to elicit (cervical) vestibular-evoked myogenic potentials (cVEMPs) was studied to address the common proposition that infrasound may efficiently stimulate the vestibular system, an effect which may underlie the so-called wind-turbine syndrome. cVEMPs were measured for both ears of 15 normal-hearing subjects using three types of airborne sound stimulation: (1) 500-Hz tone bursts (transient); (2) 500-Hz sinusoidally amplitude-modulated tones at a 40-Hz rate (SAM); and (3) low-frequency and infrasound pure tones (LF/IS). The two former stimulation types served as control and allowed a systematic comparison with (3). It was found that SAM stimulation is effective and appears to be comparable to transient stimulation, as was previously observed in a yet small number of studies. Although the vestibular system is reported to be highly sensitive to low-frequency mechanical vibration, airborne LF/IS stimulation at ∼80–90-phon loudness levels did not elicit significant saccular vestibular responses.

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“…This is a much faster and more accurate test, in terms of compromised frequencies (11) . Studies conducted on the use of the steady-state technique to detect the VEMP found that this test, as well as auditory evoked potential, can also be performed in the frequency domain (7,12) . In addition to early detection of inferior vestibular nerve disorders, it favors a more accurate diagnosis in a shorter time frame and independent of the examiner's interpretation (7) .…”

Section: Introductionmentioning

confidence: 99%