Figure 4. The steady state activation of hH1a channels is not affected by halothane and isoflurane. Conductance was determined as described in Materials and Methods. Normalized conductance and voltage relations for controls, anesthetics, and washouts were fit to the Boltzmann function. Data are the mean +/- SEM (n = 10 cells in each group). No statistical differences were found between anesthetic-free controls, anesthetics, and washouts.