Comparison of Eq. 6b (solid black line, adjusted R2 of 0.516) to data assuming identical and independent voltage sensors in the membrane. Closed and open symbols represent OHCs from normal mammalian phenotype (pigmented) and albino guinea pigs. Open circles, diamonds, and squares represent OHCs from adult males, juvenile males, and juvenile females, respectively. Colored symbols (blue, cyan, green, and red) represent OHCs that originate from turns 1, 2, 3, and 4, and black symbols represent OHCs of unknown origin. 86 cells with 144 mM chloride in patch pipette are shown. The dashed red line (left) was calculated with Eq. 6b for of 3.95 and 0.584 aF; the dashed red line (right) was calculated for of 2.16 and 1.07 aF.