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. Author manuscript; available in PMC: 2007 Jan 12.
Published in final edited form as: Otol Neurotol. 2003 Nov;24(6):918–926. doi: 10.1097/00129492-200311000-00017

FIG. 6.

FIG. 6

Time courses of average DPOAE levels and CBF during and after 5-minute IAA compressions in six ears pretreated with papaverine. The lower plot shows the rapid return of CBF after release of IAA compression with the characteristic overshoot of blood flow and the gradual return to precompression baseline values. In the upper plot, DPOAE levels recover rapidly, but never completely, to precompression baseline values. The level of DPOAE recovery was inversely related to emission frequency (i.e., 4-kHz DPOAE recovered to within 0.5 dB of precompression baseline, 8-kHz DPOAE to within 2.5–3 dB, and 12-kHz DPOAE to within 5–5.5 dB).