Mean word frequency (WF, in units of occurrence per million), mean number of strokes (NS), and mean concreteness (CO) of the critical verbs for the three conditions.

<p>The standard deviations are shown in parentheses. CON, congruent condition; SEM, semantic violation condition; SEM+SYN, combined semantic and syntactic violation condition.</p><p>Mean word frequency (WF, in units of occurrence per million), mean number of strokes (NS), and mean concreteness (CO) of the critical verbs for the three conditions.