Cortex
Volume 45, Issue 10 , Pages 1119-1125 , November 2009

Darwin and the ghost of Phineas Gage: Neuro-evolution and the social brain

  • Robin I.M. Dunbar

      Affiliations

    • Corresponding Author InformationBritish Academy Centenary Research Project, Institute of Cognitive and Evolutionary Anthropology, 64 Banbury Road, University of Oxford, Oxford OX2 6PN, UK.

References 

  1. Aiello LC, Wheeler P. The expensive-tissue hypothesis: the brain and the digestive system in human and primate evolution. Current Anthropology. 1995;36:199–221
  2. Barrett L, Henzi SP, Dunbar RIM. Primate cognition: from ‘what now?’ to ‘what if?’. Trends in Cognitive Science. 2003;7:494–497
  3. Barton RA. Neocortex size and behavioural ecology in primates. Proceedings of the Royal Society, London. 1996;263B:173–177
  4. Barton RA, Dunbar RIM. Evolution of the social brain. In:  Whiten A,  Byrne R editor. Machiavellian Intelligence II. Cambridge: Cambridge University Press; 1997;p. 240–263
  5. Beauchamp G, Fernandez-Juricic E. Is there a relationship between forebrain size and group size in birds?. Evolutionary Ecology Research. 2004;6:833–842
  6. Bechara A, Damasio AR, Damasio H, Anderson S. Insensitivity to future consequences following damage to human prefrontal cortex. Cognition. 1994;50:7–12
  7. Brothers L. Friday's Footprint: How Society Shapes the Human Mind. Oxford: Oxford University Press; 1997;
  8. Bush EC, Allman JM. The scaling of frontal cortex in primates and carnivores. Proceedings of the National Academy of Sciences, USA. 2004;101:3962–3966
  9. Byrne RW. The Thinking Ape. Oxford: Oxford University Press; 1995;
  10. Byrne RW, Corp N. Neocortex size predicts deception rate in primates. Proceedings of the Royal Society, London. 2000;271B:1693–1699
  11. In:  Byrne RW,  Whiten A editor. Machiavellian Intelligence. Oxford: Oxford University Press; 1988;
  12. Clutton-Brock TH, Harvey PH. Primates, brains and ecology. Journal of the Zoology. 1980;190:309–323
  13. Deaner RO, Isler K, Burkart J, van Schaik CP. Overall brain size, and not encephalisation quotient, best predicts cognitive ability across non-human primates. Brain, Behavior and Evolution. 2007;70:115–124
  14. Decety J, Lamm C. The role of the right temporoparietal junction in social interaction: how low-level computational processes contribute to meta-cognition. The Neuroscientist. 2007;13:580–593
  15. Dunbar RIM. Neocortex size as a constraint on group size in primates. Journal of Human Evolution. 1992;22:469–493
  16. Dunbar RIM. Coevolution of neocortex size, group size and language in humans. Behavioral and Brain Sciences. 1992;16:681–735
  17. Dunbar RIM. The social brain hypothesis. Evolutionary Anthropology. 1998;6:178–190
  18. Dunbar RIM. Why are apes so smart?. In:  Kappeler P,  Pereira M editor. Primate Life Histories and Socioecology. Chicago: Chicago University Press; 2003;p. 285–298
  19. Dunbar RIM. Taking social intelligence seriously. In:  Peel RA,  Zeki M editor. Genetic and Environmental Influences on Human Ability. London: Galton Institute; 2006;p. 47–50
  20. Dunbar RIM. The social brain hypothesis and its implications for social evolution. Annals of Human Biology. 2009;36:562–572
  21. Dunbar RIM, Bever J. Neocortex size predicts group size in carnivores and some insectivores. Ethology. 1998;104:695–708
  22. Dunbar RIM, Shultz S. Understanding primate brain evolution. Philosophical Transactions of the Royal Society, London. 2007;362B:649–658
  23. Dunbar RIM, Shultz S. Evolution in the social brain. Science. 2007;317:1344–1347
  24. Dunbar RIM, McAdam M, O'Connell S. Mental rehearsal in great apes and humans. Behavioural Processes. 2005;69:323–330
  25. Finlay BL, Darlington RB. Linked regularities in the development and evolution of mammalian brains. Science. 1995;268:1578–1584
  26. Finlay BL, Darlington RB, Nicastro N. Developmental structure in brain evolution. Behavioral and Brain Sciences. 2001;24:263–308
  27. Frith U, Frith CD. Development and neurophysiology of mentalizing. Philosophical Transactions of the Royal Society, London. 2003;358B:459–473
  28. Gallagher HL, Frith CD. Functional imaging of ‘theory of mind’. Trends in Cognitive Sciences. 2003;7:77–83
  29. Gibson KR. Cognition, brain size and the extraction of embedded food resources. In:  Else JG,  Lee PC editor. Primate Ontogeny, Cognition and Social Behaviour. Cambridge: Cambridge University Press; 1986;p. 93–104
  30. Gittleman JL. Carnivore brain size, behavioral ecology and phyogeny. Journal of Mammalogy. 1986;67:23–36
  31. Harvey PH, Clutton-Brock TH, Mace GM. Brain size and ecology in small mammals and primates. Proceedings of the National Academy of Sciences, USA. 1980;77:4387–4389
  32. Healy SD, Rowe C. A critique of comparative studies of brain size. Proceedings of the Royal Society, London. 2007;274B:453–464
  33. Hill RA, Dunbar RIM. Social network size in humans. Human Nature. 2003;14:53–72
  34. Hofman MA. Energy metabolism, brain size and longevity in mammals. Quarterly Review of Biology. 1983;58:495–512
  35. Itier RJ, Batty M. Neural bases of eye and gaze processing: the core of social cognition. Neuroscience and Biobehavioral Reviews. 2009;33:843–863
  36. Jerison HJ. Evolution of the Brain and Intelligence. New York: Academic Press; 1973;
  37. Karbowski J. Global and regional brain metabolic scaling and its functional consequences. BMC Biology. 2007;5:18–46
  38. Kaufman JA. On the expensive tissue hypothesis: independent support from highly encephalised fish. Current Anthropology. 2003;44:705–706
  39. Kinderman P, Dunbar RIM, Bentall RP. Theory-of-mind deficits and causal attributions. British Journal of Psychology. 1998;89:191–204
  40. Kudo H, Dunbar RIM. Neocortex size and social network size in primates. Animal Behaviour. 2001;62:711–722
  41. Lee JJ. A g beyond Homo sapiens? Some hints and suggestions. Intelligence. 2006;35:253–265
  42. Lefebvre L, Reader SM, Sol D. Brains, innovations and evolution in birds and primates. Brain, Behaviour and Evolution. 2004;63:233–246
  43. Leslie AM. Pretence and representation in infancy: the origins of theory of mind. Psychological Review. 1987;94:84–106
  44. Lewis K. A comparative study of primate play behaviour: implications for the study of cognition. Folia Primatologica. 2001;71:417–421
  45. Lieberman MD. Social cognitive neuroscience. In Fiske ST, Gilbert DT, and Lindzey G (Eds), Handbook of Social Psychology. 5th ed. New York, NY: McGraw-Hill, in press.
  46. Mace GM, Eisenberg JF. Competition, niche specialization and the evolution of brain size in the genus Peromyscus. Biological Journal of the Linnean Society. 1982;17:243–257
  47. Macphail EM. Vertebrate intelligence: the null hypothesis. Philosophical Transactions of the Royal Society, London. 1985;308B:37–51
  48. Martin RD. Relative brain size and metabolic rate in terrestrial vertebrates. Nature. 1981;293:57–60
  49. Mink JW, Blumenschine RJ, Adams DB. Ratio of central nervous system to body metabolism in vertebrates – its constancy and functional basis. American Journal of Physiology. 1981;241:R203–R212
  50. Mitchell P. Introduction to Theory of Mind. London: Arnold; 1997;
  51. Ochsner KN. Social cognitive neuroscience: historical development, core principles, and future promise. In:  Kruglanksi A,  Higgins ET editor. Social Psychology: A Handbook of Basic Principles. 2nd ed.. New York: Guilford Press; 2007;p. 39–66
  52. Pawłowski BP, Lowen CB, Dunbar RIM. Neocortex size, social skills and mating success in primates. Behaviour. 1998;135:357–368
  53. Pérez-Barbería FJ, Gordon IJ. Gregariousness increases brain size in ungulates. Oecologia. 2005;145:41–52
  54. Pérez-Barbería FJ, Shultz S, Dunbar RIM. Evidence for intense coevolution of sociality and brain size in three orders of mammals. Evolution. 2007;61:2811–2821
  55. Pitnick S, Jones KE, Wilkinson GS. Mating system and brain size in bats. Proceedings of the Royal Society, London. 2006;273B:719–724
  56. Reader SM, Laland K. Social intelligence, innovation and advanced brain size in primates. Proceedings of the National Academy of Sciences, USA. 2002;99:4436–4441
  57. Roberts S, Dunbar RIM, Pollet T, Kuppens T. Exploring variations in active network: constraints and ego characteristics size. Social Networks. 2009;31:138–146
  58. Rubin Z. Measurement of romantic love. Journal of Personality and Social Psychology. 1970;16:265–273
  59. Saxe R. Why and how to study theory of mind with fMRI. Brain Research. 2006;1079:57–65
  60. Saxe R, Carey S, Kanwisher N. Understanding other minds: linking developmental psychology and functional neuroimaging. Annual Review of Psychology. 2004;55:87–124
  61. Shultz S, Dunbar RIM. Both social and ecological factors predict ungulate brain size. Proceedings of the Royal Society, London. 2006;273B:207–215
  62. Shultz S, Dunbar RIM. The evolution of the social brain: anthropoid primates contrast with other vertebrates. Proceedings of the Royal Society, London. 2007;274B:2429–2436
  63. Shultz S, Bradbury R, Evans K, Gregory R, Blackburn T. Brain size and resource specialisation predict long-term population trends in British birds. Proceedings of the Royal Society, London. 2005;272B:2305–2311
  64. Silk JB. The ‘F’-word in primatology. Behaviour. 2002;139:421–446
  65. Silk JB. Social components of fitness in primate groups. Science. 2007;317:1347–1350
  66. Silk JB, Alberts SC, Altmann J. Social bonds of female baboons enhance infant survival. Science. 2003;302:1232–1234
  67. Smuts BB. Sex and Friendship in Baboons. New York: Aldine; 1985;
  68. Sol D, Duncan RP, Blackburn TM, Cassey P, Lefebrve L. Big brains, enhanced cognition and response of birds to novel environments. Proceedings of the National Academy of Sciences, USA. 2005;102:5460–5465
  69. Sol D, Lefebvre L, Rodriguez-Teijeiro DJ. Brain size, innovative propensity and migratory behaviour in temperate Palaeartic birds. Proceedings of the Royal Society, London. 2005;272B:1433–1441
  70. Sternberg RJ. Construct validation of a triangular love scale. European Journal of Social Psychology. 1997;27:313–335
  71. Stiller J, Dunbar RIM. Perspective-taking and social network size in humans. Social Networks. 2007;29:93–104
  72. Zhou W-X, Sornette D, Hill RA, Dunbar RIM. Discrete hierarchical organization of social group sizes. Proceedings of the Royal Society, London. 2005;272B:439–444

PII: S0010-9452(09)00159-2

doi: 10.1016/j.cortex.2009.05.005

Cortex
Volume 45, Issue 10 , Pages 1119-1125 , November 2009