Figure 2.

Mean ERP amplitudes for the EPN. Mean ERP amplitudes across 180 to 280 ms and across 16 parietal-occipital electrodes relevant for the early posterior negativity (EPN) for neutral, negative, and spider pictures during the four tasks, separately for participants with and without spider fear. Error bars refer to the SEM derived from MSE within each group.

Norberg and Wiens BMC Neuroscience 2013 14:139   doi:10.1186/1471-2202-14-139
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