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Paper Information

Journal:   AUDITORY AND VESTIBULAR RESEARCH   2014 , Volume 23 , Number 4; Page(s) 69 To 76.
 
Paper: 

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

 
 
Author(s):  KHORSAND SABET VIDA, MAHDAVI ZAFARGHANDI MOHAMMAD EBRAHIM*, SAFAVI MOZHDEH, SHARIFIAN MARZIEH, TABATABAEE SEYYED MAHDI
 
* DEPARTMENT OF AUDIOLOGY, FACULTY OF REHABILITATION SCIENCES, SHAHID BEHESHTI UNIVERSITY OF MEDICAL SCIENCES, DAMAVAND AVE., TEHRAN, 1616913111, IRAN
 
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.

 
Keyword(s): AUDITORY BRAINSTEM RESPONSES, CHIRP, CLICK, NORMAL HEARING
 
 
References: 
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Click to Cite.
APA: Copy

KHORSAND SABET, V., & MAHDAVI ZAFARGHANDI, M., & SAFAVI, M., & SHARIFIAN, M., & TABATABAEE, S. (2014). COMPARISON OF CLICK AND CE-CHIRP-EVOKED HUMAN AUDITORY BRAINSTEM RESPONSES: A PRELIMINARY STUDY. AUDITORY AND VESTIBULAR RESEARCH, 23(4), 69-76. https://www.sid.ir/en/journal/ViewPaper.aspx?id=402648



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. 2014 [cited 2021May12];23(4):69-76. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=402648



IEEE: Copy

KHORSAND SABET, V., MAHDAVI ZAFARGHANDI, M., SAFAVI, M., SHARIFIAN, M., TABATABAEE, S., 2014. COMPARISON OF CLICK AND CE-CHIRP-EVOKED HUMAN AUDITORY BRAINSTEM RESPONSES: A PRELIMINARY STUDY. AUDITORY AND VESTIBULAR RESEARCH, [online] 23(4), pp.69-76. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=402648.



 
 
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