Sound-evoked neurogenic responses with short latency of vestibular origin

Murofushi, Toshihisa; Iwasaki, Shinichi; Takai, Yoshinari; Takegoshi, Hideki

doi:10.1016/j.clinph.2004.09.005

Cited by 19 publications

(19 citation statements)

References 15 publications

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“…From these 10 patients, three had congenital PSNHL and contributed both ears to the study, seven were sudden PSNHL and only one of these patients contributed both ears to the study. The N3 waves of the selected patients complied with the first three criteria established by Murofushi et al for the N3 definition (Murofushi et al, 2005): N3 should be reproducible; with a latency between 3 and 5 ms and an amplitude more than 0.05 µV from the initial deflection to the negative peak.…”

Section: Methodsmentioning

confidence: 97%

“…Of these patients, four had congenital PSNHL and contributed both ears, 15 were sudden PSNHL and contributed with one ear and in one case with two ears, and one had PSNHL secondary a traumatic head injury and contributed with one ear to the study. The N3 of the selected patients complied with N3 definition criteria (Toshihisa Murofushi et al, 2005). From group B patients, 10 had the cVEMP test performed.…”

Section: Methodsmentioning

confidence: 99%

“…Other authors prefer to use the term acoustically evoked short latency negative response or ASNR (Nong, Ura, & Noda, 2000). This evoked potential was first discovered by Cazals, Aran, Erre, Guilhaume, and Hawkins (1979), and several studies point to N3 as originating in the lower part of the brainstem by saccule activation in response to high intensity auditory stimuli (Burian, Gstoettner, & Zundritsch, 1989; Cazals, Aran, Erre, & Guilhaume, 1980; Cazals, Aran, Erre, Guilhaume, & Aurousseau, 1983; Cazals & Aurousseau, 1987; Murofushi, Iwasaki, Takai, & Takegoshi, 2005; Nong, Ura, Kyuna, Owa, & Noda, 2002; Ochi & Ohashi, 2001; Wit, Bleeker, & Segenhout, 1981). During brainstem auditory evoked potential (BAEP) in normal hearing patients, the vestibular response is masked by the greater amplitude and inverse polarity of the electropositive waves conforming the I‐V complex from the cochlear response.…”

Section: Introductionmentioning

confidence: 99%

“…In the context of PSNHL, the waves of the I‐V complex disappear and are replaced by the vestibular evoked potential, N3, if the vestibular system is preserved. The criteria for N3 identification was established by Murofushi et al (2005). N3 is detected in 11.9%–30% of patients with PSNHL during BAEP (Emara, 2010; Nong et al, 2000; Zagólski, 2007).…”

Section: Introductionmentioning

confidence: 99%

“…N3 is detected in 11.9%–30% of patients with PSNHL during BAEP (Emara, 2010; Nong et al, 2000; Zagólski, 2007). Several studies compared cVEMP and N3, concluding that they have the same evoked potentials origin but different mechanism of generation (Emara, 2010; Jafari & Asad Malayeri, 2011; Murofushi et al, 2005; Nong et al, 2002; Ochi & Ohashi, 2001; Zagólski, 2008). N3 could have higher sensitivity and equivalent specificity to detect dysfunctions of the saccule nerve pathway than cVEMPs (Versino et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

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Uncovered p1 and p2 waves preceding the N3 vestibular evoked neurogenic potential in profound sensorineural hearing loss

et al. 2020

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Background The N3 wave is a vestibular evoked neurogenic potential detected in some patients with profound sensorineural hearing loss (PSNHL) during brainstem auditory evoked potential (BAEP) analysis. In 1998, Kato et al. mentioned two electropositive waves preceding N3, which we named p1‐p2, but no further description was given. Objective We sought to demonstrate the reproducibility of these waves and hypothesize on their anatomic origin. Methods We used two cohorts of patients with PSNHL. The first cohort comprised 10 patients with N3, allowing us to establish a new test with adequate electrophysiological conditions headed to detect p1‐p2 waves (PN3EP). The second cohort consisted of two groups: group A comprised 10 patients in whom N3 was not detected; and group B comprised 20 patients presenting N3. PN3EP was performed in both groups, of which 50% had cervical myogenic vestibular evoked potentials (cVEMPs). Results Only group B presented p1‐p2. The PN3EP facilitated the identification of p1‐p2 over BAEP analysis, and their presence correlated well with cVEMPs. Conclusions P1‐p2 may be covered due to inadequate BAEP setting conditions, and could be generated in the distal neural path that generates the N3 wave.

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Section: Methodsmentioning

confidence: 97%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Uncovered p1 and p2 waves preceding the N3 vestibular evoked neurogenic potential in profound sensorineural hearing loss

et al. 2020

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VEMP Variants

2009

Vestibular Evoked Myogenic Potential

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Frame of reference for visual perception in young infants during change of body position

2007

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The visual and vestibular systems begin functioning early in life. However, it is unclear whether young infants perceive the dynamic world based on the retinal coordinate (egocentric reference frame) or the environmental coordinate (allocentric reference frame) when they encounter incongruence between frames of reference due to changes in body position. In this study, we performed the habituation-dishabituation procedure to assess novelty detection in a visual display, and a change in body position was included between the habituation and dishabituation phases in order to test whether infants dishabituate to the change in stimulus on the retinal or environmental coordinate. Twenty infants aged 3-4 months were placed in the right-side-down position (RSDp) and habituated to an animated human-like character that walked horizontally in the environmental frame of reference. Subsequently, their body position was changed in the roll plane. Ten infants were repositioned to the upright position (UPp) and the rest, to the RSDp after rotation. In the test phase, the displays that were spatially identical to those shown in the habituation phase and 90 degrees rotated displays were alternately presented, and visual preference was examined. The results revealed that infants looked longer at changes in the display on the retinal coordinate than at changes in the display on the environmental coordinate. This suggests that changes in body position from lying to upright produced incongruence of the egocentric and allocentric reference frames for perception of dynamic visual displays and that infants may rely more on the egocentric reference frame.

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Sound-evoked neurogenic responses with short latency of vestibular origin

Cited by 19 publications

References 15 publications

Uncovered p1 and p2 waves preceding the N3 vestibular evoked neurogenic potential in profound sensorineural hearing loss

Uncovered p1 and p2 waves preceding the N3 vestibular evoked neurogenic potential in profound sensorineural hearing loss

VEMP Variants

Frame of reference for visual perception in young infants during change of body position

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