کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9436725 | 1615697 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Compression estimates using behavioral and otoacoustic emission measures
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کلمات کلیدی
OHCI–OSignal frequencyTMCTdTDPOAEdistortion product otoacoustic emission - انتشار محصولات octo آکوستیک محصول اعوجاجDistortion product otoacoustic emissions - انتشارات otoacoustic محصول تحریف شدهstandard deviation - انحراف معیارGoM - بلهsensation level - سطح احساسouter hair cell - سلول بیرونی موbasilar membrane - غشاء basilarCharacteristic Frequency - فرکانس مشخصهCompression - فشرده سازیForward masking - ماسک جلوinput–output - ورودی خروجی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
سیستم های حسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Compression estimates using behavioral and otoacoustic emission measures Compression estimates using behavioral and otoacoustic emission measures](/preview/png/9436725.png)
چکیده انگلیسی
Cochlear compression in normal-hearing listeners was estimated at octave frequencies from 250 to 4000 Hz using a forward-masking paradigm. Temporal masking curves (TMCs) for a 10-dB SL signal were obtained with two maskers - one equal in frequency to the signal and another an octave below the signal. The ratio of the slope of the off-frequency function to that of the mid-level portion of the on-frequency function was computed as an estimate of the amount of compression at each frequency. Compression was less frequency selective at low frequencies, so an average of the off-frequency slopes at high frequencies (1000, 2000, and 4000 Hz) was used in computing the ratio for each signal frequency. Results indicated strong compression (â¼0.15-0.30) at all frequencies using the averaged off-frequency slopes, indicating little difference in compression across frequencies. Distortion product otoacoustic emission (DPOAE) input-output (I-O) functions were obtained for each subject at 1000, 2000, and 4000 Hz. The slopes of the DPOAE I-O functions and the psychophysical growth rates were similar to one another, reinforcing the assumption that the forward-masking procedure is providing an estimate of cochlear compression, at least at frequencies from 1000 to 4000 Hz.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Hearing Research - Volume 201, Issues 1â2, March 2005, Pages 44-54
Journal: Hearing Research - Volume 201, Issues 1â2, March 2005, Pages 44-54
نویسندگان
Erica J. Williams, Sid P. Bacon,