Social network size affects neural circuits in macaques.

Journal article

It has been suggested that variation in brain structure correlates with the sizes of individuals' social networks. Whether variation in social network size causes variation in brain structure, however, is unknown. To address this question, we neuroimaged 23 monkeys that had been living in social groups set to different sizes. Subject comparison revealed that living in larger groups caused increases in gray matter in mid-superior temporal sulcus and rostral prefrontal cortex and increased coup...

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Authors: Sallet, J; Mars, R; Noonan, M; Andersson, J; O'Reilly, J

• Publication status: Published
• Journal: Science (New York, N.Y.)
• Volume: 334
• Issue: 6056
• Pages: 697-700
• Publication date: 2011-11-01
• DOI: 10.1126/science.1210027
• EISSN: 1095-9203
• ISSN: 0036-8075
• Language: English
• Keywords: Magnetic Resonance Imaging; Female; Prefrontal Cortex; Social Behavior; Neural Pathways; Organ Size; Temporal Lobe; Nerve Net; Gyrus Cinguli; Macaca; Male; Animals; Hierarchy, Social