Table 3.

Fixed effects estimates and standard errors from mixed effects linear regression analyses of EEG amplitudes in the post-N400 time window in both Visual (500–900 ms) and Auditory (600–900 ms) modalities (for all frontal and prefrontal channels and prefrontal channels only) by Condition (HP = High-Predictability; LP = Low-Predictability; IN = Incongruous).

	Mean Amplitudes in the post-N400 time window
	Visual	Auditory-Frontal	Auditory-Prefrontal
Intercept	−3.934 (1.248)	−5.520 (1.247)	−7.682 (1.389)
	p = 0.006**	p = 0.0002***	p = 0.000***
LP vs. HP and IN	−1.361 (0.487)	−2.369 (0.638)	−2.320 (0.759)
	p = 0.015*	p = 0.002**	p = 0.008**
HP vs. IN	0.731 (0.840)	2.695 (0.741)	1.951 (0.962)
	p = 0.398	p = 0.002**	p = 0.059†
Observations	240	528	240
Log Likelihood	−571.150	−1,245.328	−571.124
Akaike Inf. Crit.	1,174.299	2,522.656	1,174.249
Bayesian Inf. Crit.	1,229.989	2,590.961	1,229.939

Note:

^†p < 0.1;

^*p < .05;

^**p < 0.01;

^***p < 0.001.

Random effects estimates available in Supplemental Material S1.