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<.05) in microV with their topography in parenthesis to the presentation of non degraded (DL0), mildly degraded (DL1), and highly degraded (DL3) auditory sentences during wake, N2, and R. A: Anterior sites (F3, F4, F7, F8), C: Central sites (C3, C4, T7, T8), P: Posterior sites (P3, P4, P7, P8), L: Left hemisphere sites (F3, F7, C3, T7, P3, P7), CP: Central and Posterior sites, AC: Anterior and Central sites, RA: Right anterior sites (F4, F8), LA: Left anterior sites (F3, F7), *: 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).