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. 2013 May 9;8(5):e63703. doi: 10.1371/journal.pone.0063703

Figure 3. Mean amplitudes and SEMs of ERPs for each condition.

Figure 3

ERP amplitudes for neutral standards, strongly emotional deviants, and weakly emotional deviants in negative and positive sequences. For all of the time windows, ERP amplitudes were averaged across three occipital electrodes (O1, O2, and Oz). In addition, for 100–200 ms and 200–300 ms, ERP amplitudes were averaged across two posterior electrodes over the right hemisphere (TP8 and P8), and two homologous electrodes over the left hemisphere (TP7 and P7). For 300–550 ms, ERP amplitudes were averaged across three centro-parietal electrodes (FCz, Cz, and CPz).