Fig. 2: Cell density map.

Each square on the map represents the mean number of cells per square millimeter normalized to the control condition of that experiment and expressed as a percentage. The black line separates conditions that caused apparent damage (right) from those that did not (left). Values over 85 are displayed on white to improve contrast. #: This point was interpolated as the mean of the closest amplitude values for the same frequency (500 mV and 1 V, 100 Hz). Voltages are equivalent to voltage/mm due to the distance between electrodes being 1 mm. (*p < 0.05; **p < 0.01; ***p < 0.001).