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. 2014 Jun 18;9(6):e100162. doi: 10.1371/journal.pone.0100162

Figure 3. Waveforms and topographic maps (with nose up) for the EPN (top), and the LPC (bottom), showing grand averaged amplitude at the selected sensors clusters.

Figure 3

The topographic maps of the EPN and LPC show subtractive waves of emotional (angry, happy) minus neutral.