EEG asymmetry in humans: relationship with success in recognizing emotions in the voice.

EEG asymmetry was studied in two groups of subjects: those with high (group 1) and those with low (group 2) levels of recognition of emotions in the voice. EEG power was compared in baseline conditions and during the recognition of emotions in six standard frequency ranges and in individual bands with 1-Hz steps. Significant differences between groups 1 and 2 were seen both in baseline conditions and during the recognition of emotions: in most cases, subjects of group 2 had greater levels of activation and asymmetry than those of group 1 both in baseline conditions and on recognition of emotions.