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Low-frequency and high-frequency cochlear nonlinearity in humans
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10.1121/1.2751265
/content/asa/journal/jasa/122/3/10.1121/1.2751265
http://aip.metastore.ingenta.com/content/asa/journal/jasa/122/3/10.1121/1.2751265
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Mean behavioral threshold in dB SPL (left axis) and mean middle-ear reflectance in decibels (right axis) as a function of frequency. Open symbols represent behavioral thresholds and closed symbols represent reflectance data. In both cases, error bars represent s.d. Data are shown for both frequencies (0.5 and ). Data points representing behavioral thresholds and reflectance are offset slightly to allow for easier visualization.

Image of FIG. 2.
FIG. 2.

Top panel: Mean DPOAE level (squares) and noise level (circles) in dB SPL as a function of in dB SPL when . Bottom panel: Mean DPOAE level (squares) and noise level (circles) in dB SPL as a function of in dB SPL when . In all cases, error bars represent s.d. Because stimuli were presented relative to each subject’s threshold, was rounded to the nearest prior to calculating the mean values shown.

Image of FIG. 3.
FIG. 3.

Top panel: Mean DPOAE level (squares) and noise level (circles) in dB SPL as a function of in dB SL when . Bottom panel: Mean DPOAE level (squares) and noise level (circles) in dB SPL as a function of in dB SL when . In all cases, error bars represent s.d.

Image of FIG. 4.
FIG. 4.

Slope (dB/dB) as a function of in dB SL, calculated from the mean data shown in Fig. 3. Squares represent data for and circles represent data for .

Image of FIG. 5.
FIG. 5.

Mean in dB SPL as a function of in dB SL, following the symbol conventions used in Fig. 4. Lines represent polynomial fits to the mean data, with the solid line representing the fit to data at and the dashed line representing the fit to data at . Proportion of the variance accounted for is provided as an insert.

Image of FIG. 6.
FIG. 6.

Slope (dB/dB) as a function of in dB SL derived from the polynomial fits that were shown in Fig. 5. Symbol convention is the same as in previous figures. Closed symbols on each curve represent the point at which the maximum slope was achieved. Horizontal dashed line drawn at a slope of 0.5 was used as a definition of dynamic range.

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/content/asa/journal/jasa/122/3/10.1121/1.2751265
2007-09-01
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Low-frequency and high-frequency cochlear nonlinearity in humans
http://aip.metastore.ingenta.com/content/asa/journal/jasa/122/3/10.1121/1.2751265
10.1121/1.2751265
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