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. 2014 Jul 29;15(5):695–705. doi: 10.1007/s10162-014-0470-z

FIG. 3.

FIG. 3

DPOAE growth functions of 2f1–f2 and f2–f1 DPOAE at 20, 40 and 60 kHz f2 frequency (grey awake, black anaesthetised). All example data are from the same individual bat. The used ratio for both conditions (awake/anaesthetised) was in A 1.15/1.23, B 1.21/1.25, C 1.13/1.25, D 1.29/1.29, E 1.33/1.29 and F 1.25/1.21. Dotted lines: mean noise levels + 1SD for both conditions. Horizontal line: −10 dB SPL DPOAE threshold criterion. Lower graphs: corresponding phase data (grey awake, black anaesthetised).