Fig. 5.

The montage shows all electrodes that were used for measurement of the N400 in the main statistical analysis, regardless of the reference point. Only studies with 12 or fewer electrodes were used to generate this montage, because larger montages more frequently included analyses of the entire scalp with broadly distributed electrodes. If a paper included more than one experiment with different subjects, both experiments were included in the analysis separately. Shades of green show differences between the lowest (white) and the maximum frequency (dark green) of using an electrode, weighted by the number of participants per condition for each experiment