Social Network Size Affects Neural Circuits in Macaques

@article{Sallet2011SocialNS,
  title={Social Network Size Affects Neural Circuits in Macaques},
  author={J{\'e}r{\^o}me Sallet and Rogier B. Mars and M. P. Noonan and Jesper L. R. Andersson and Jill X. O’Reilly and Sa{\^a}d Jbabdi and Paula L Croxson and Mark Jenkinson and K L Miller and Matthew F. S. Rushworth},
  journal={Science},
  year={2011},
  volume={334},
  pages={697 - 700}
}
Executing social cognition successfully requires more brain power. 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… 
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