Envelopes of the estimated EC and transducer signals (dashed curve), noise residue (dotted curve), and of the OAE response (solid curve) for (a) a TB and (b) a TB. The identified first peak attributed to the TBOAE is indicated by the arrow. Both these examples are from the same illustrative subject.
The OAE and BM latency estimates for the 11 subjects are shown in the left and right panels, respectively. The OAE latency is defined as the time between stimulus onset and the peak of the OAE burst. The BM latency estimate, , is calculated following Eq. (2). The error bars represent std.
Comparison between (solid curve) and (dashed curve) for (a) subject 10 and (b) mean across subjects. The data points are also plotted (symbols ⋆ and ◻) and are connected by dotted lines. The solid and dashed lines represent the best fit to the data. The value of resulting from the two-way ANOVA test is indicated. For both the illustrative subject and the mean across subjects , it is therefore considered that OAE and ABR are significantly different.
Histogram of all calculated to ratios. Group shown in light gray represent potential outliers.
TB stimuli used, with length in ms and number of cycles.
Table of individual mean EC impulse response lengths and standard deviations.
Inter-subject variability for and across frequency and given in percentage. The percentage is calculated as the ratio between the standard deviation and the mean value.
Delay power-law function fitting parameters for Eq. (5) across subject. Note the mean refers to the model fitted to the mean latency data and not the mean of the parameters shown.
Statistical analysis results. Column 2 gives the subject dependent interpeak and synaptic delay standard deviation, with the difference from that used by Moleti and Sisto (2008) given in parentheses. Column 3 gives the -values from the ANOVA test with any significant results given in bold. The -values in parentheses were obtained when using the fixed Moleti and Sisto (2008) interpeak and synaptic delay. Note the mean refers to the results for the mean latency data and not the mean of the parameters shown.
Article metrics loading...
Full text loading...