Delays in the cochlea in terms of frequency and distance along the basilar membrane.

<p>(<b>A</b>) Delay of cochlear resonators (ms) against characteristic frequency (kHz). (<b>B</b>) The Greenwood frequency–place map which relates distance from the apex to the characteristic frequency <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0047918#pone.0047918-Greenwood1" target="_blank">[37]</a> over the range 1 to 10 kHz. (<b>C</b>) Cochlear delay as a function of distance. The <i>y</i>-axis is inverted so as to more easily appreciate that the wave is progressing (delay is increasing) from base to apex.