Significant ERP effects according to the post hoc tests of Analysis II.

Note: Significant ERP effects according to the post hoc tests of Analysis II (p*: all scalp sites except the right anterior region, n.s.: non-significant ERP effect (p>.05), Lg: ERP (averaged in the above-mentioned time windows) to long SSL incongruent sentences minus ERP to congruent sentences, S: ERP to short SSL incongruent sentences minus ERP to congruent sentences, SSL: ERP to long minus short SSL incongruent sentences, W: Wake, S indep.: ERP effects independent from the Vigilance State (i.e. from an interaction that did not include the Vigilance State factor).