Ethanol does not alter movement of voltage sensors and other voltage-dependent parameters of cbv1 channels. (A and B) Po-V data over a wide range of voltages were fitted with Eq. 3 after constraining V_h(J), L₀, and z_L (Fig. 7; Horrigan and Aldrich, 2002) to determine the values of D and z_J. For ethanol data, V_h(J) was allowed to vary. Best-fit parameters (±95% confidence interval) are listed in the corresponding graphs. n = 11; each patch was excised from a different cell. Data are expressed as mean ± SEM.