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Modeled current density in a 10 mm diameter sphere within the brain parenchyma directly under the stimulating scalp electrode at sites C3 and F3. Each bar is the resulting average current density of three stimulation current values (0.5, 1.0, and 2.0 mA). There were significant effects of electrode configuration and sex. The values between stimulation sites C3 and F3 were not significantly different. The bars represent mean current density and the whiskers represent the SDs.
