The social brain hypothesis was proposed as an explanation for the fact that primates have unusually large brains for body size compared to all other vertebrates: Primates evolved large brains to manage their unusually complex social systems. Nonetheless, testing between competing hypotheses adds significantly to the power of any such analyses if it can be shown that only social indices yield significant relationships with brain component volumes. Keywords: human cognition, brain, evolution, humans, primates, social cognition, social behaviour, neuroimaging, social brain hypothesis, social complexity. By extension, it was assumed that brains evolved to deal with essentially ecological problem-solving tasks. Whether such reasoning can apply to all social animals is an open question. The Cultural Brain Hypothesis posits that brains have been selected for their ability to store and manage information, acquired through asocial or social learning. Although the social brain hypothesis has been successfully tested using simple demographic indices like social group size or differences in mating system, its real focus lies in the subtleties of behavior. What is the social brain hypothesis? Speciﬁ-cally, what quantitative empirical evi-dence there was tended to favor one or the other of the ecological hypoth- Conventional wisdom over the past 160 years in the cognitive and neurosciences has assumed that brains evolved to process factual information about the world.
Public users can however freely search the site and view the abstracts and keywords for each book and chapter. Social brain hypothesis. tural Brain Hypothesis. Request permission; The “Machiavellian intelligence” hypothesis (or the “social brain” hypothesis) posits that large brains and distinctive cognitive abilities of humans have evolved via intense social competition in which social competitors developed increasingly sophisticated “Machiavellian” strategies as a means to achieve higher social and reproductive success. The less contentious label social brain hypothesis (SBH) (10, 11) has thus been adopted. The model of the Cultural Brain Hypothesis reveals relationships between brain size, group The “social brain hypothesis” posits that the cognitive demands of sociality have driven the evolution of substantially enlarged brains in primates and some other mammals.Whether such reasoning can apply to all social animals is an open question. -main evolutionary pressure for human intellectual development is the ability to understand and predict complex social interactions, work together, and to outwit our peers About. Although initially criticized for being con-ceptually vague, the SBH eventually began to receive increasing quantitative support. Oxford Scholarship Online requires a subscription or purchase to access the full text of books within the service. Tools. The social brain hypothesis was proposed as an explanation for the fact that primates have unusually large brains for body size compared to all other vertebrates: Primates evolved large brains to manage their unusually complex social systems.
Most attention has therefore been focused on such features as pattern recognition, color vision, and speech perception.
PDF. He runs a large research group, with graduate students working on many different species on four continents. The social brain hypothesis was proposed by British anthropologist Robin Dunbar, who argues that human intelligence did not evolve primarily as a means to solve ecological problems, but rather as a means of surviving and reproducing in large and complex social groups. The “social brain hypothesis” posits that the cognitive demands of sociality have driven the evolution of substantially enlarged brains in primates and some other mammals.