Table 2.

Mean absolute change in median power frequency (MPF) at different locations during different exposure conditions.

Condition	Electrode locations
	Fp1	Fp2	F3	F4	C3	C4	P3	P4
ΔDiesel	0,41*	0,34*	0,40	0,54	0,12	0,18	0,21	0,24
ΔSham	0,10	0,12	0,34	0,50	0,23	0,13	0,17	0,25
ΔDiesel post	0,46*	0,43*	0,41*	0,60*	0,23	0,20	0,23	0,30
ΔSham post	0,21	0,24	0,09	-0,20	0,18	0,15	0,21	0,19

Mean changes in the median power frequency between the first and last 5 minutes of all conditions are shown per electrode localization. * Significant differences between diesel and sham exposures, Wilcoxon paired test (P < 0.05).