Figure 6: Event-related potentials of noun plurals. Comparison of ERPs for masculine/neuter nouns that take (irregular) -n plurals and for nouns that take regular -s plurals. Left column: Correctness effect at the left frontotemporal (F7) site for the 2 plural conditions. A significant negativity for incorrect plurals is present only for masculine/neuter. Right column: Correctness effect at the central (Cz) site for the 2 plural conditions. A phasic and earlier negativity for incorrect plurals is present only for nouns taking the regular -s ending as correct plural marker. Horizontal scale: tickmarks at 100 to 800 ms, vertical line at 0 ms (stimulus-onset): -3 to +3 µV.