Fig 3. Plots of current intensity at 62Hz passing through the animal’s paws or resistor.

Different groups were represented by white, light gray or dark gray bars: 150Kohms resistor (no animal in the apparatus), female rats (3 months; 280–320g) or male rats (3 months; 310–360g), respectively. In insert graphic the effective current passing by animal body in traditional apparatus of inhibitory avoidance, nominal current 0.4mA. The standard data represents mean±S.D. Analyses by Mann-Whitney test; n = 5 animals/group/current supplied and 5 measurements for each animal. No significant difference was observed among the groups. Insert graphic, 8 animals, 3 measurements for each animal.