Fig. 3From: Comparison of the effect of sedation and general anesthesia on pattern and flash visual evoked potentials in normal dogsElectrode placement for VEP recording. The recording electrodes were placed over the inion, or dorsal occipital protuberance (O1, Oz, O2). The reference electrode was placed at the level of the forehead (Fpz). The ground electrode (Cz) was placed halfway between Oz and FpzBack to article page