R. Adolphs, The Social Brain: Neural Basis of Social Knowledge, Annual Review of Psychology, vol.60, issue.1, pp.693-716, 2009.

L. C. Aiello and P. Wheeler, The Expensive-Tissue Hypothesis: The Brain and the Digestive System in Human and Primate Evolution, Current Anthropology, vol.36, issue.2, pp.199-221, 1995.

B. J. Ashton, A. R. Ridley, E. K. Edwards, and A. Thornton, Cognitive performance is linked to group size and affects fitness in Australian magpies, Nature, vol.554, p.364, 2018.

K. C. Bickart, C. I. Wright, R. J. Dautoff, B. C. Dickerson, and L. F. Barrett, Amygdala volume and social network size in humans, Nature Neuroscience, vol.14, issue.2, pp.163-164, 2010.

R. W. Byrne and A. Whiten, Machiavellian Intelligence: Social Expertise and the Evolution of Intellect in Monkeys, Apes and Humans, 1988.

T. H. Clutton-brock and P. H. Harvey, Primates, brains and ecology, Journal of Zoology, vol.190, issue.3, pp.309-323, 1980.

A. R. Decasien, S. A. Williams, and J. P. Higham, Primate brain size is predicted by diet but not sociality, Nature Ecology & Evolution, vol.1, p.112, 2017.

R. I. Dunbar, Neocortex size as a constraint on group size in primates, Journal of Human Evolution, vol.22, issue.6, pp.469-493, 1992.

R. I. Dunbar, The social brain hypothesis, Evolutionary Anthropology: Issues, News, and Reviews, vol.6, issue.5, pp.178-190, 1998.

R. I. Dunbar, The social brain hypothesis and its implications for social evolution, Annals Of Human Biology, vol.36, issue.5, pp.562-572, 2009.

R. I. Dunbar, The social brain meets neuroimaging, Trends in Cognitive Sciences, vol.16, issue.2, pp.101-102, 2012.

R. I. Dunbar and S. Shultz, Why are there so many explanations for primate brain evolution?, Philosophical Transactions of the Royal Society B: Biological Sciences, vol.372, 1727.

R. D. Fields, Change in the Brain's White Matter, Science, vol.330, issue.6005, pp.768-769, 2010.

M. González-forero and A. Gardner, Inference of ecological and social drivers of human brain-size evolution, Nature, vol.557, issue.7706, pp.554-557, 2018.

W. H. Hampton, A. Unger, R. J. Von-der-heide, and I. R. Olson, Neural connections foster social connections: a diffusion-weighted imaging study of social networks, 2016.

, Social Cognitive and Affective Neuroscience, vol.11, issue.5, pp.721-727

, Journal Pre

S. D. Healy and C. Rowe, A critique of comparative studies of brain size, Proceedings of the Royal Society B: Biological Sciences, vol.274, pp.453-464, 1609.

N. K. Humphrey, The social function of intellect, Growing points in ethology, pp.303-317, 1976.

K. Isler and C. P. Van-schaik, Metabolic costs of brain size evolution, Biology Letters, vol.2, issue.4, pp.557-560, 2006.

T. H. Joffe, Social pressures have selected for an extended juvenile period in primates, Journal of Human Evolution, vol.32, issue.6, pp.593-605, 1997.

R. Kanai, B. Bahrami, R. Roylance, and G. Rees, Online social network size is reflected in human brain structure, Proceedings of the Royal Society of London B: Biological Sciences, vol.279, pp.1327-1334, 1732.

S. Kwak, W. Joo, Y. Youm, and J. Chey, Social brain volume is associated with indegree social network size among older adults, Proceedings of the Royal Society B: Biological Sciences, vol.285, 1871.

P. A. Lewis, R. Rezaie, R. Brown, N. Roberts, and R. I. Dunbar, Ventromedial prefrontal volume predicts understanding of others and social network size, 2011.

, NeuroImage, vol.57, issue.4, pp.1624-1629

M. Louail, E. Gilissen, S. Prat, C. Garcia, and S. Bouret, Refining the ecological brain: Strong relation between the ventromedial prefrontal cortex and feeding ecology in five primate species, Cortex, vol.118, pp.262-274, 2019.
URL : https://hal.archives-ouvertes.fr/hal-02190647

S. A. Love, D. Marie, M. Roth, R. Lacoste, B. Nazarian et al.,

A. Meguerditchian, The average baboon brain: MRI templates and tissue probability maps from 89 individuals, NeuroImage, vol.132, pp.526-533, 2016.
URL : https://hal.archives-ouvertes.fr/hal-02793925

, Journal Pre

E. L. Maclean, D. J. Merritt, and E. M. Brannon, Social complexity predicts transitive reasoning in prosimian primates, Animal Behaviour, vol.76, issue.2, pp.479-486, 2008.

E. L. Maclean, A. A. Sandel, J. Bray, R. E. Oldenkamp, R. B. Reddy et al., , 2013.

, Group Size Predicts Social but Not Nonsocial Cognition in Lemurs, PLoS ONE, vol.8, issue.6, p.66359

J. Mangin, D. Riviere, A. Cachia, E. Duchesnay, Y. Cointepas et al.,

J. Regis, Object-based morphometry of the cerebral cortex, IEEE Transactions on Medical Imaging, vol.23, issue.8, pp.968-982, 2004.

K. Margiotoudi, D. Marie, N. Claidière, O. Coulon, M. Roth et al.,

A. Meguerditchian, Handedness in monkeys reflects hemispheric specialization within the central sulcus. An in vivo MRI study in right-and left-handed olive baboons, Cortex, 2019.
URL : https://hal.archives-ouvertes.fr/hal-02104937

R. B. Mars, S. Foxley, L. Verhagen, S. Jbabdi, J. Sallet et al.,

M. F. Rushworth, The extreme capsule fiber complex in humans and macaque monkeys: a comparative diffusion MRI tractography study, Brain Structure and Function, vol.221, issue.8, pp.4059-4071, 2016.

J. A. Mortimer, D. Ding, A. R. Borenstein, C. Decarli, Q. Guo et al.,

S. Chu, , 2012.

, Changes in brain volume and cognition in a randomized trial of exercise and social interaction in a community-based sample of non-demented Chinese elders, Journal of Alzheimer's disease : JAD, vol.30, issue.4, pp.757-766

M. P. Noonan, R. B. Mars, J. Sallet, R. I. Dunbar, and L. K. Fellows, The structural and functional brain networks that support human social networks, Behavioural Brain Research, vol.355, pp.12-23, 2018.

, Journal Pre

M. P. Noonan, J. Sallet, R. B. Mars, F. X. Neubert, J. X. O'reilly et al.,

M. F. Rushworth, A Neural Circuit Covarying with Social Hierarchy in Macaques, PLoS Biology, vol.12, issue.9, p.1001940, 2014.

J. Powell, P. A. Lewis, N. Roberts, M. García-fiñana, and R. I. Dunbar, Orbital prefrontal cortex volume predicts social network size: an imaging study of individual differences in humans, Proceedings of the Royal Society of London B: Biological Sciences, vol.279, pp.2157-2162, 1736.

J. Sallet, R. B. Mars, M. P. Noonan, J. L. Andersson, J. X. O'reilly et al., Social Network Size Affects Neural Circuits in Macaques, Science, vol.334, issue.6056, pp.697-700, 2011.

T. Sawaguchi, Relative brain size, stratification, and social structure in anthropoids, Primates, vol.31, issue.2, pp.257-272, 1990.

T. Sawaguchi and H. Kudo, Neocortical development and social structure in primates, Primates, vol.31, issue.2, pp.283-289, 1990.

J. Scholz, M. C. Klein, T. E. Behrens, and H. Johansen-berg, Training induces changes in white-matter architecture, Nature Neuroscience, vol.12, p.1370, 2009.

R. M. Seyfarth, D. L. Cheney, and T. J. Bergman, Primate social cognition and the origins of language, Trends in Cognitive Sciences, vol.9, issue.6, pp.264-266, 2005.

Y. Wang and I. R. Olson, The Original Social Network: White Matter and Social Cognition, Trends in Cognitive Sciences, vol.22, issue.6, pp.504-516, 2018.

A. Whiten, Social, Machiavellian and cultural cognition: A golden age of discovery in comparative and evolutionary psychology., Journal of Comparative Psychology, vol.132, issue.4, pp.437-441, 2018.