COMPARISON OF CLICK AND CE-CHIRP-EVOKED HUMAN AUDITORY BRAINSTEM RESPONSES: A PRELIMINARY STUDY

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KHORSAND SABET VIDA; MAHDAVI ZAFARGHANDI MOHAMMAD EBRAHIM; SAFAVI MOZHDEH; SHARIFIAN MARZIEH; TABATABAEE SEYYED MAHDI

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Journal: Auditory and Vestibular Research Journal Year:2014 | Volume:23 | Issue:4 Page(s): 69-76

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Title

COMPARISON OF CLICK AND CE-CHIRP-EVOKED HUMAN AUDITORY BRAINSTEM RESPONSES: A PRELIMINARY STUDY

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Keywords

AUDITORY BRAINSTEM RESPONSESQ2

CHIRPQ2

CLICKQ3

NORMAL HEARINGQ2

Abstract

Background and Aim: CE-Chirp stimulus has been developed for stimulating more apical regions of the cochlea. Inadequacy of clinical information on the latency and amplitude characteristics of ABR evoked by CE-chirp at different levels in addition to discrepancy in identifying earlier ABR waveforms using CE-chirp stimulus are the reasons of this study.Methods: This study was done by recoding ABR to CLICK and broad-band CE-chirp stimuli in the right ear of 15 non-randomly selected normal-hearing individuals with age range of 20-30 years old. Frequency of recordable waves I and III, as well as threshold, amplitude, and latency of wave V were compared in response to CLICK and CE-Chirp at 20-80 dB nHL.Results: At 80 dB nHL, CLICK stimulus evokes waves I and III more frequently than CHIRP stimulus (p=0.012 and p=0.016 respectively). At 20 and 40 dB nHL, wave V latency evoked by CE-Chirp is significantly longer than wave V latency evoked by CLICK (p=0.012 and p=0.0001 respectively); however, at 80 dB nHL wave V latency evoked by CE-Chirp is shorter than CLICK (p=0.0001). Wave V amplitude for CE-Chirp is significantly larger than for CLICK at levels of 20, 40 and 60 dB nHL (p=0.0001, p=0.0001 and p=0.013 respectively). Wave V threshold is approximately 5 dB lower with CE-chirp compared to CLICK (p=0.014).Conclusion: Except at high levels, CE-Chirp evokes wave V with larger amplitude and lower threshold than CLICK. Possibility of recording earlier ABR waves is reduced with CE-chirp stimulus.

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APA: Copy

KHORSAND SABET, VIDA, MAHDAVI ZAFARGHANDI, MOHAMMAD EBRAHIM, SAFAVI, MOZHDEH, SHARIFIAN, MARZIEH, & TABATABAEE, SEYYED MAHDI. (2014). COMPARISON OF CLICK AND CE-CHIRP-EVOKED HUMAN AUDITORY BRAINSTEM RESPONSES: A PRELIMINARY STUDY. AUDITORY AND VESTIBULAR RESEARCH, 23(4), 69-76. SID. https://sid.ir/paper/106371/en

Vancouver: Copy

KHORSAND SABET VIDA, MAHDAVI ZAFARGHANDI MOHAMMAD EBRAHIM, SAFAVI MOZHDEH, SHARIFIAN MARZIEH, TABATABAEE SEYYED MAHDI. COMPARISON OF CLICK AND CE-CHIRP-EVOKED HUMAN AUDITORY BRAINSTEM RESPONSES: A PRELIMINARY STUDY. AUDITORY AND VESTIBULAR RESEARCH[Internet]. 2014;23(4):69-76. Available from: https://sid.ir/paper/106371/en

IEEE: Copy

VIDA KHORSAND SABET, MOHAMMAD EBRAHIM MAHDAVI ZAFARGHANDI, MOZHDEH SAFAVI, MARZIEH SHARIFIAN, and SEYYED MAHDI TABATABAEE, “COMPARISON OF CLICK AND CE-CHIRP-EVOKED HUMAN AUDITORY BRAINSTEM RESPONSES: A PRELIMINARY STUDY,” AUDITORY AND VESTIBULAR RESEARCH, vol. 23, no. 4, pp. 69–76, 2014, [Online]. Available: https://sid.ir/paper/106371/en

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