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. 2019 Mar 30;116(9):1769–1786. doi: 10.1016/j.bpj.2019.03.020

Figure 1.

Figure 1

(A) Cross-sectional view of the cochlea, showing the placement of sensors. The LCM electrode was placed near the BM via a hole in the basal turn of ST. The EP electrode was placed to access the second turn of SM. (B) Experimental photo is shown. The green line shows division of basal and second turn of the cochlea. (C) Comparison of frequency tuning of LCM and AN fiber with BF = 18 kHz (AN data from (27)) is shown. The threshold of LCM was 0.004 mV. (D) Frequency response example of LCM fundamental with stimulus levels ranges from 30 to 90 dB SPL in 5 dB steps (expt705). At the BF of the preparation (18 kHz), the amplitudes show a nonlinearity factor of ∼250. The rapidly accumulating phase at 14–20 kHz shows traveling wave delay, affirming that the measurement was from local OHCs. To see this figure in color, go online.