PMC2685044_01
These axial (A) and coronal (B) MR images were activated by stimulation with the recognizable faces of high school friends, where distinct activation was shown in the limbic areas: the amygdala, hippocampus, parahippocampal gyrus and insula.
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PMC2685044_01_kjr-6-196-g001.jpg
F1
Especially, the activation of the amygdala and hippocampus was significantly greater during the stimulation with recognizable faces of high school friends (Fig. 1).
The activation patterns stimulated with the unrecognizable faces of the university friends (A) and the unfamiliar control faces (B) were similar to each other.
kjr-6-196-g002.jpg
PMC2685044_01_kjr-6-196-g002.jpg
F2
They showed significantly less activation in the limbic area than the recognizable faces (Fig. 2).