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. Author manuscript; available in PMC: 2010 Jan 30.
Published in final edited form as: Behav Brain Res. 2008 Aug 19;197(1):62–76. doi: 10.1016/j.bbr.2008.08.011

Fig. 7.

Fig. 7

The topographic maps of ORN and ORP components at peak amplitudes (in μV). ORN component has been plotted after performing a high-pass filter at 2 Hz (only for the display of topography). The surface potentials (Panel A) and the Z-score (in numerical units) of these potentials (Panel B) are shown for both ORN and ORP components. The Z-scores, calculated across 61 electrodes for each map separately, elicit the shape of the activity by masking the amplitude differences. Therefore, the values in the color scale of Z-score maps may represent different amplitude values in each map. These maps were generated at the peak of following electrodes: 1) ORN for −50 and −10 conditions at FZ; 2) ORN for +50 and +10 conditions at CZ; 3) ORP for −50 and −10 conditions at CZ; and 4) ORP (for +50 and +10 conditions) at PZ.