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. 2004 Jul;87(1):714–727. doi: 10.1529/biophysj.103.033993

FIGURE 7.

FIGURE 7

Measurement of outer hair cell nonlinear capacitance with the eCm method. The rapid relaxation in capacitance during a step voltage change is due to the shift of the cell's nonlinear Q-V function along the voltage axis (Santos-Sacchi et al., 1998), and was confirmed through alternative measures. Cell was clamped with a PC clone, Axon 200B amplifier, 10-kHz Bessel filter, and Axon 1321A A/D D/A board with conditions described previously (Santos-Sacchi et al., 1998). See text for further details.