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1
The Use of cortical auditory evoked potentials to evaluate neural encoding of speech sounds in adults
Agung, Katrina; Purdy, Suzanne C; McMahon, Catherine M. - : American Academy of Audiology, 2006
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2
Rising-frequency chirps and earphones with an extended high-frequency response enhance the post-auricular muscle response
Abstract: The purpose of this study was to determine whether rising-frequency chirps presented via earphones with an extended high-frequency response would optimize the post-auricular muscle response (PAMR). The PAMR was recorded in adults using three different stimuli (a click, a rising-frequency chirp, and a truncated speech stimulus, /t/). Conventional ER-3A insert earphones were compared to ER-2 insert earphones to determine whether the PAMR is enhanced by the ER-2's extended high-frequency response. There were significant stimulus and earphone effects on PAMR amplitudes. The PAMR was largest for the chirp stimulus and the ER-2 earphones. The poorest responses were obtained using the /t/ stimulus and conventional ER-3A earphones. The results support previous ABR studies that have demonstrated a significant advantage of chirps over clicks for evoked response audiometry, and indicate that the PAMR is enhanced by inclusion of additional high-frequency stimulus energy. ; 6 page(s)
Keyword: 110300 Clinical Sciences; chirp; evoked response; insert earphones; objective audiometry; post-auricular muscle
URL: http://hdl.handle.net/1959.14/33686
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Aided cortical auditory evoked potentails for hearing instrument evaluation in infants
Purdy, Suzanne C; Katsch, Richard; Dillon, Harvey. - : US-Warrenville, IL : Phonak LLC, 2005
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