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The social brain hypothesis

1998; Wiley; Volume: 6; Issue: 5 Linguagem: Inglês

10.1002/(sici)1520-6505(1998)6

1520-6505

R. I. M. Dunbar,

Language and cultural evolution

Evolutionary Anthropology: Issues, News, and ReviewsVolume 6, Issue 5 p. 178-190 The social brain hypothesis† Robin I. M. Dunbar, Robin I. M. DunbarSearch for more papers by this author Robin I. M. Dunbar, Robin I. M. DunbarSearch for more papers by this author First published: 07 December 1998 https://doi.org/10.1002/(SICI)1520-6505(1998)6:5 3.0.CO;2-8Citations: 1,370 † Robin Dunbar is Professor of Evolutionary Psychology and Behavioural Ecology at the University of Liverpool, England. His research primarily focuses on the behavioral ecology of ungulates and human and nonhuman primates, and on the cognitive mechanisms and brain components that underpin the decisions that animals make. He runs a large research group, with graduate students working on many different species on four continents. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract Conventional wisdom over the past 160 years in the cognitive and neurosciences has assumed that brains evolved to process factual information about the world. Most attention has therefore been focused on such features as pattern recognition, color vision, and speech perception. By extension, it was assumed that brains evolved to deal with essentially ecological problem-solving tasks. © 1998 Wiley-Liss, Inc. References 1 Clutton-Brock T. H., Harvey P. H. (1980) Primates, brains and ecology. J Zool Lond 190: 309– 323. 2 Aiello L. C., Wheeler P. (1995) The expensive tissue hypothesis. Curr Anthropol 36: 184– 193. 3 Parker S. T., Gibson K. R. (1977) Object manipulation, tool use and sensorimotor intelligence as feeding adaptations in great apes and cebus monkeys. J Hum Evol 6: 623– 641. 4 Gibson K. R. (1986) Cognition, brain size and the extraction of embedded food resources. In J. Else, P. C. Lee (eds), Primate Ontogeny, Cognition and Social Behaviour, pp 93– 104. Cambridge: Cambridge University Press. 5 Whiten A., Byrne R. (1988) Tactical deception in primates. Behav Brain Sci 12: 233– 273. 6 R. Byrne, A. Whiten (eds) (1988) Machiavellian Intelligence. Oxford: Oxford Uninversity Press. 7 Harcourt A. H. (1988) Alliances in contests and social intelligence. In R. Byrne A. Whiten (eds), Machiavellian Intelligence, pp 142– 152. Oxford: Oxford University Press. 8 Harcourt A. H. (1989) Sociality and competition in primates and non-primates. In V. Standen, R. Foley (eds), Comparative Socioecolgoy, pp 223– 242. Oxford: Blackwell Scientific. 9 Brothers L. (1990) The social brain: A project for integrating primate behaviour and neurophysiology in a new domain. Concepts Neurosci 1: 27– 251. 10 Barton R. A., Dunbar R. L. M. (1997) Evolution of the social brain. In A. Whiten, R. Byrne (eds), Machiavellian Intelligence. Vol. II. Cambridge: Cambridge University Press. 11 Finlay B. L. Darlington R. B. (1995) Linked regularities in the development and evolution of mammalian brains. Science 268: 1678– 1684. 12 Martin R. D. (1981) Relative brain size and metabolic rate in terrestrial vertebrates. Nature Lond 293: 57– 60. 13 Martin R. D. (1983) Human brain evoluiton in an ecological context. 52nd James Arthur Lecture, American Museum of Natural History. New York. 14 Hofman M. A. (1983) Evolution of the brain in neonatal and adult placental mammals: A theoretical approach. J Theoret Biol 105: 317– 322. 15 Pagel M., Harvey P. H. (1988) How mammals produce large-brained offspring. Evolution 12: 948– 957. 16 Boesch C., Boesch H. (1984) Mental map in chimpanzees. Primates 25: 110– 170. 17 MacLean P. D. (1982) On the origin and progressive evolution of the triune brain. In E. Armstrong, D. Falk (eds), Primate Brain Evolution, pp 291– 310. New York: Plenum Press. 18 Joffe T., Dunbar R. I. M. (n.d.). Primate brain system evolution. Brain Behav Evol, submitted for publication. 19 Passingham R. E. (1982) The Human Primate. San Fancisco: Freeman. 20 Jersion H. J. (1973) Evolution of the Brain and Intelligence, New York: Academic Press. 21 Dunbar R. I. M. (1989) Environmental determinants of intraspecific variation in body weight in baboons. J Zool London 220: 167– 169. 22 Willner L. A. (1989) Sexual Dimorphism in Primates. Ph.D. thesis, University of London. 23 Deacon T. W. (1990) Fallacies of progresson indices in theories of brain-size evoluiton. Int J Primatol 12: 193– 236. 24 Dunbar R. I. M. (1992) Neocortex size as a constraint on group size in primates. J Hum Evol 20: 469– 493. 25 Dunbar R. I. M. Joffe T. H. (n.d.) Neocortex size and social group size in prosimians. Primates, submitted for publication. 26 Byrne R. B. (1995) The Thinking Primate. Oxford: Oxford University Press. 27 Barton R. A. (1995) Neocortex size and behavioural ecology in primates. Proc R Soc London B, 263: 173– 177. 28 Joffe T. H. Dunbar R. I. M. (1997) Visual and socio-cognitive information processing in primate brain evolution. Proc R Soc London B, 264: 1303– 1307. 29 Stephan H. Frahm H., Baron G. (1981) New and revised data on volumes of brain structures in insectivores and primates. Folia Primatol 35: 1– 29. 30 Sawaguchi T., Kudo H. (1990) Neocortical devolopment and social structure in primates. Primates 31: 283– 290. 31 Barton R. A., Puris A. (1994) Primate brains and ecology: Looking beneath the surface. In J. R. Anderson, B. Thierry, N. Herrenschmidt (eds). Current Primatology, pp 1– 12. Strasbourg: University of Strasbourg Press. 32 O'Keefe J., Nadel L. (1978) The Hippocampous as a Cognitive Map. Oxford: Oxford University Press. 33 Krebs J. H. Sherry D. F., Healy S. D. Perry V. H. Vaccarino A. L. (1989) Hippocampal specialisation of food-storing birds. Proc Natl Acad Sci USA 86: 1488– 1492. 34 Aiello L. C., Dunbar R. I. M. (1993) Neocortex size, group size and the evolution of language. Curr Anthropol 34: 184– 193. 35 Dunbar R. I. M. (1995) Neocortex size and group size in primates: A test of the hypothesis. J Hum Evol 28: 287– 296. 36 Bearder S. K. (1987) Lorises, bushbabies and tarsiers: Diverse societies in solitary foragers. In B. Smuts D. Cheney, R. Seyfarth R. Wrangham, T. Struhsaker (eds), Primate Societies, pp 12– 24. Chicago: Chicago University Press. 37 Dunbar R. I. M., Bever J. (n.d.) Neocortex size determines group size in carnivores and insectivores. Ethology, in press. 38 Gittleman J. H. (1986) Carnivore brain size, behavioural ecology and phylogeny. J Mammal 67: 23– 36. 39 Marino L. (1996) What can dolphins tell us about primate evoluiton? Evol Anthropol 5: 81– 86. 40 Tschudin A. (1996) The Use of Neuroimaging in the Assessment of Brain Size and Structure in Odontocetes. MSc thesis, University of Natal (Durban). 41 Barton R. A., Purvis A., Harvey P. H. (1995) Evolutionary radiation of visual and olfactory brain systems in primates, bats and insectivores. Philos Trans R Soc B 348: 381– 392. 42 Kolb B., Wishaw L. O. (1996) Fundamendtals of Human Neuropsychology. San Francisco: Freeman. 43 Fletcher P. Happé F., Frith U. Baker S. C. Dolan R. J. Frakowiak R. S. J., Frith C. D. (1996) Other minds in the brain: A functional imaging study of “theory of mind” in story comprehension. Cognition 00: 000– 000. 44 Frith C. (1996) Brain mechanisms for “having a theory of mind.” J Psychopharmacol 10: 9– 16. 45 Armstrong E., Clarke M. R., Hill E. M. (1987) Relative size of the anterior thalamic nuclei differentiates anthropoids by social system. Brain Behav Evol 30: 263– 271. 46 Keverne E. B., Martel F. L., Nevison C. M. (1996) Primate brain evolution: Genetic and functional considerations. Proc R Soc Lond B 262: 689– 696. 47 Pawlowski B. Dunbar R., Lowen C. (n.d.) Neocortex size, social skills and mating success in primates. Behaviour, in press. 48 Joffe T. H. (1997) Social pressures have selected for an extended juvenile period in primates. J Hum Evol, in press. 49 Bennett P. M., Harvey P. H. (1985) Brain size, development and metabolism in birds and mammals. J Zool London 207: 491– 509. 50 Marino L. (1997) The relationship between gestation length, encephalisation and body weight in odontocetes. Marine Mammal Sci 14: 143– 148. 51 Kudo H., Lowen S., Dunbar R. I. M. (n.d.) Neocortex size and social network size in primates. Behaviour, submitted for publication. 52 Sugawara K. (1984) Spatial proximity and bodily contact among the central Kalahari San. Afr Studies Monogr 3. 53 Dunbar R. I. M. Spoor M. (1995) Social networks, support cliques and kinship. Hum Nature 6: 273– 290. 54 Dunbar R. I. M. (1988) Primate Social Systems. London: Chapman & Hall. 55 Dunbar R. I. M. (1989) Social systems as optimal strategy sets. In V. Standen R. Foley (eds), Comparative Socioecology, pp 141– 149. Oxford: Blackwell Scientific. 56 Dunbar R. I. M. (1993) Coevolution of neocortical size, group size and language in humans. Behav Brain Sci 11: 681– 735. 57 Cheney D. L., Seyfarh R. M. (1990) How Monkeys See the World. Chicago: Chicago University Press. 58 Povinelli D. J. Nelson K. E. (1990) Inferences about guessing and knowing in chimpanzees. J Comp Psychol 104: 203– 210. 59 Povinelli D. J. (1994) What chimpanzees (might) know about the mind. IN R. Wrangham, W. McGrew, F. de Waal, P. Heltne (eds), Chimpanzee Cultures. pp 285– 300. Cambridge: Harvard University Press. 60 O'Connell S. M. (1996) Theory of Mind in Chimpanzess. Ph.D. thesis, University of Liverpool. 61 Perner J., Wimmer D. (1985) “John thinks that Mary thinks that…︁.” Attribution of second-order beliefs by 5 and 10 year-old children. J Exp Child Psychol 39: 437– 471. 62 Kinderman P. Dunbar R. I. M., Bentall R. P. (n.d.) Theory of mind deficits and causal attributions. Br J Psychol. in press. 63 Desalles J.-L. (n.d.) Altruism. status and the origin of relevance. In J. R. Hurford, M. Studdert-Kennedy, C. Knight (eds), Evolution of Language. Cambridge: Cambridge University Press. 64 Dunbar R. I. M. (1997) Grooming. Gossip and the Evolution of Language. Cambridge: Harvard University Press. 65 Harvey P. H., Krebs J. R. (1990) Comparing brains. Science 249: 150– 156. 66 Stephan H. (1972) Evolution of primate brains: A comparative anatomical investigation. In R. Tuttle (ed). Functional and Evolutionary Biology of Primates. pp 165– 174. Chicago: Aldine-Atherton. 67 Killworth P. D., Bernard H. R., McCarty C. (1984) Measuring patterns of acquainatanceship. Curr Anthropol 25: 391– 397. 68 Mange A., Mange E. (1980) Genetics: Human Aspects. W.B. Saunders. 69 Bryant F. C. (1981) We're All Kin: A Cultural Study of a Mountain Neighbourhood. Knoxville: University of Tennessee Press. 70 Gould S. J. (1975) Allometry in primates, with emphasis on scaling and the evoluiton of the brain. Contrib Primatol 5: 244– 292. 71 Jolly A. (1969) Lemur social behaviour and primate intelligence. Science 163: 501– 506. 72 Humphrey N. K. (1976) The social function of intellect. In P. P. G. Bateson, R. A. Hinde (eds) Growing Points in Ethology. pp 303– 317. Cambridge: Cambridge University Press. 73 Armstrong E. (1985) Relative brain size in monkeys and prosimians. Am J Phys Anthropol 66: 263– 273. Citing Literature Volume6, Issue51998Pages 178-190 ReferencesRelatedInformation