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Research on Auditory Long Latency Response in Normal Hearing Subjects / 法医学杂志
Journal of Forensic Medicine ; (6): 176-179, 2016.
Article Dans Anglais | WPRIM | ID: wpr-984830
ABSTRACT
OBJECTIVES@#To explore the characters and the relationship among latency response, amplitude and sound stimulus intensity of auditory long latency response(ALR), and to investigate the significance of ALR applied in auditory threshold prediction.@*METHODS@#Total 46 subjects (92 ears) with normal hearing were tested by ALR. The ALR waves of the subjects were elicited by 5 sound stimulus intensity according to the order of 70, 50, 30, 20 and 10 dB nHL. By making N₁ wave and P₂ wave, the values of 3 observed indexes (the latencies of N₁ wave and P₂ wave and N₁-P₂ amplitude) were obtained, and the variation trend of the observed indexes were statistically analyzed. The differences in the frequency of the indexes were observed.@*RESULTS@#The rate of ALR waves from 46 subjects (92 ears) with normal hearing was 100%. The latencies of N₁ wave and P₂ wave delayed gradually and N₁-P₂ amplitude declined with sound stimulus intensity descending.@*CONCLUSIONS@#In suitable conditions, ALR is a stable technology for hearing thresholds prediction. The relation between sound stimulus intensity and latency of N₁ wave, latency of P₂ wave and N₁-P₂ amplitude of ALR plays an important part in auditory thresholds assessment.
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Texte intégral: Disponible Indice: WPRIM (Pacifique occidental) Sujet Principal: Temps de réaction / Seuil auditif / Stimulation acoustique / Potentiels évoqués auditifs du tronc cérébral / Potentiels évoqués auditifs / Ouïe / Bruit Limites du sujet: Femelle / Humains / Mâle langue: Anglais Texte intégral: Journal of Forensic Medicine Année: 2016 Type: Article

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Texte intégral: Disponible Indice: WPRIM (Pacifique occidental) Sujet Principal: Temps de réaction / Seuil auditif / Stimulation acoustique / Potentiels évoqués auditifs du tronc cérébral / Potentiels évoqués auditifs / Ouïe / Bruit Limites du sujet: Femelle / Humains / Mâle langue: Anglais Texte intégral: Journal of Forensic Medicine Année: 2016 Type: Article