Results①The cVEMP elicitation rates were 95.24% （80/84） and 98.81% （83/84） for 500 Hz and 1 kHz, correspondingly; together with oVEMP elicitation prices had been 78.57% （66/84） and 91.67per cent （77/84） for 500 Hz and 1 kHz, respectively. ②Except for the horizontal huge difference of FAR in oVEMP associated with posterior semicircular channel BPPV group and cVEMP for the horizontal semicircular canal BPPV group （P0.05）. ConclusionIn clients with unilateral vestibular hypofunction, cVEMP and oVEMP revealed different regularity tuning alterations in various semicircular canal BPPV groups. Furthermore, 1 kHz cVEMP and oVEMP as regular stimulation frequencies in clinical test, which has particular medical reference value for determining the analysis and prognosis of BPPV in the weak ear as well as in various semicircular canal involvement.ObjectiveThe three-dimensional path function of torsional nystagmus induced by posterior semicircular canal canalithasis （PSC-Can） was taped and examined using three-dimensional movie nystagmography （3D-VNG）. MethodsSixty patients （22 in the remaining side and 38 in the correct side） with PSC-Can had been enrolled for torsional nystagmus evoked by Dix-Hallpike test in the affected-side head-hanging and sitting positions, additionally the direction characteristics for the horizontal, vertical and torsional components were examined. ResultsVertical torsional nystagmus was caused in 60 PSC-Can customers into the head-hanging and sitting positions evoked by Dix-Hallpike test, respectively. Horizontal, straight, and torsional components of were provided into the 3D-VNG. In the head-hanging position, the course R16 datasheet of horizontal component within the left/right PSC-Can nystagmus was contralateral in 46 cases（the other 14 cases were ipsilateral）, the straight component ended up being upward, therefore the torsional element ended up being upward/downward, respectively. The strength of nystagmus caused within the three elements in the sitting position is weaker than in the head-hanging position, therefore the path of nystagmus ended up being reversed in both vertical and torsional elements compared with the head-hanging position. But, the course associated with horizontal component was corrected in 39 instances and not corrected in 21 cases when you look at the sitting position. ConclusionThe horizontal, vertical and torsional the different parts of the torsional nystagmus in PSC-Can patients recorded by 3D-VNG, which offered much more comprehensive and unbiased information for the evaluation of PSC-Can and the study of semicircular canal physiological purpose.ObjectiveTo complete the working concept design and prototype construction regarding the Chinese multichannel vestibular prosthesis （CMVP） with independent intellectual home legal rights, and verify its working performance, so as to set the building blocks when it comes to clinical marketing and application of CMVP. MethodsOn the foundation of past study, the working concept of CMVP ended up being built on the basis of the information encoding principle of vestibular neurological system, together with circuit had been designed based on the concept. Then, proper electronic components and software methods were selected to construct a CMVP model in accordance with the design. Eventually, the input and production attributes associated with CMVP prototype had been verified through the performance test. ResultsIn the present study, a block diagram of the working principle associated with the CMVP had been successfully created and drawn, therefore the working principle had been explained at length based on the block drawing. Further, the circuit diagram of this CMVP was designed and drawn on the basis of the working concept, then the selected electronic components and software systems had been combined one after another to perform the construction of a prototype. Eventually, the performance test when it comes to model ended up being completed, which revealed that all stimulation electrodes of this prototype could output biphasic pulse existing, as well as the frequency of biphasic pulse up-to-date was modulated by the spatial rotation data input sensed by a motion sensor. ConclusionThe working principle and circuit design of the CMVP are reasonable; the CMVP model in Asia is effectively constructed; the spatial rotation motion sensing input while the modulated pulse current output tend to be stable and dependable.ObjectiveTo construct a prediction model for Ménière’s condition centered on neural network and assess its prediction ability. MethodsSixty-four patients with Ménière’s condition Cophylogenetic Signal underwent gadolinium enhanced magnetic resonance imaging of internal ear which showed endolymphatic hydrops. Meanwhile, 40 healthier grownups had been enrolled as controls. The database of wideband tympanometry of patients and control topics was examined, and also the neural network model had been established by MATLAB 2021a software. The forecast ability Bioprocessing regarding the model had been examined by precision, good predictive value, negative predictive worth, the Youden index, susceptibility, specificity, receiver running characteristic curve and location under curve （AUC）. ResultsA feedforward network model was constructed with a single hidden layer to predict Ménière’s disease with wideband tympanometry. There have been 104 functions into the input level, 13 neuron nodes within the concealed layer and 1 production neuron into the result level.