Figure 2.

Accuracy (d-prime values) of emotion recognition in right frontal/ left frontal/bilateral injury patients (Kruskal-Wallis test). Accuracy indicated correct answers. The bilateral sub-group presented lower accuracy values for all social emotions. The right frontal sub-group registered similar accuracy pattern except for guilt recognition. However, the differences were not significant for jealousy and guilt recognition. On arrogance recognition the differences were only marginally significant [H = 5.364; P =0.068]. The left frontal sub-group presented lower accuracy. Data were shown as mean ± SD of 32 frontal lobe injury patients and 41 healthy controls.