Fig. 7From: Head phantoms for bioelectromagnetic applications: a material studyThe (top) average conductivity and (bottom) anisotropy ratio of reed sticks in 0.17% NaCl solution at 25 °C for a frequencies of 0.1 Hz to 100 kHz and b duration of 60 min at 10 Hz. The shaded regions show µ ± σ for data in longitudinal (red) and transverse (blue) directionBack to article page