Figure 7

P600 mean amplitude for the Jabberwocky syntactic condition. Group mean amplitude (μV) (1,200–1,500 ms) elicited by syntactic (phrase structure) violations within Jabberwocky sentences. Averaged across central-parietal electrodes (C3, CP3, P3, CZ, CPZ, PZ, C4, CP4, and P4), only CWNS and CWS-Rec show a larger positivity (P600) elicited by phrase structure violations relative to the canonical condition (negative plotted up).