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. 2014 Apr 4;9(4):e93728. doi: 10.1371/journal.pone.0093728

Table 1. Frontal EEG alpha asymmetry scores.

Condition
N Electrodes Anger Pain t p
Adults 20 F7/F8 0.013±0.42 −0.046±0.41 3.102 0.006**
F3/F4 0.074±0.17 0.047±0.20 1.908 0.072+
Infants 20 F3/F4 −0.009±0.13 0.054±0.20 −2.111 0.048*

This table shows the mean (± standard deviation) of the frontal EEG alpha asymmetry scores during the presentation of facial expressions of anger and pain. Please note that higher numbers indicate greater relative left-side activation.

**p<.01.

*p<.05,+p = marginal significant.