Part 10: Streetlife
10The human brain has built-in features that promote social stimuli and encode social information. The ability to recognize faces, smells, and voices as distinct and belonging to certain persons builds a sense of social structure in tandem with the ability to experience social stimuli. People can focus on the same object, laugh or yawn infectiously, begin clapping in unison without trying to synch up. Many brain structures are involved in these processes, the temporal lobe's fusiform gyrus to recognize faces, the amygdala to remember emotional interactions, the parietal lobe S3 for somatosensory projection.
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