Figure 5
From: EEG theta and N400 responses to congruent versus incongruent brand logos
Shows the steps in our methodology. The plots related to congruent condition are indicated by red color, and incongruent condition by blue color. Panel (a) shows congruent and incongruent target brands (the last image of each set). Panel (b) shows an example of the EEG data followed by pre-processing steps. Panel (c) relates to pre-processed epochs corresponding to each condition. By averaging the epochs of each condition we reached panel (c-1), showing the ERP activity for each condition. Panel (d) shows the time–frequency activity of each epoch for two conditions separately (in each TF, hot colors indicate positive relative power and cold colors indicate negative relative power). By averaging of TF of each condition, panel (d-1) is obtained, showing the actual time–frequency activity of each condition. Panel (e) shows the statistical analysis using the permutation test—starting with actual difference calculation, then shuffling the extracted feature 10,000 times and calculating the difference in each iteration, and finally building up the random distribution and comparing it with the actual difference.
