Table 2: Global changes of BEA after open heart operation .

Patient group dynamics**Group effect***Local dynamics**Local group effects***

Total alpha-2 power decreaseF = 5.28,
P =  .032
NSF3, Fz, C3, C4, Cz, P3, P4, Pz, O1, O2, Oz,T5T4 (larger decrease in controls)
Total beta-1 power increaseF = 7.28,
P =  .013
F = 6.11,
P =  .020
C3, C4, Cz, P3, P4, Pz, O1, O2, T3, T5, F8, T4, T6C3, C4, Cz, P3, P4, Pz, O1, O2, F8, T4, T6
Total beta-2 power increaseF = 5.42,
P =  .030
F = 3.41,
P =  .076
C3, P3, P4, Pz, O1, O2, T3, T5, F8, T6Fpz, F3, C3, C4, Cz, P4, T4
Total delta-1 mean frequency increaseF = 15.8,
P =  .001
F = 10.2,
P =  .004
Fp2, C3, C4, P4, Pz, O1, O2, F7, T3, T5, F8, T4, T6C3, C4, P3, Pz, O1, O2, Oz, F7, T3
Total delta-2 mean frequency increaseF = 16.2,
P =  .001
NSFp2, Fpz, F3, F4, C3, C4, Cz, P4, O2, Oz, F7, T5, F8, T4, T6Fp2, Fpz, Cz, T4
Total alpha-2 mean frequency increaseF = 4.25,
P =  .049
NSP3, Pz, T3NS

*Findings at P  <  .1 are presented.
** Repeated measures ANOVAs or Wilcoxon tests included only patients.
*** Repeated measures ANOVAs included patients and normal controls.