In a , three researchers including Robin Dunbar analyse mobile phone data to see if layers of friends can be identified from call frequencies, and how call frequency clusters compare with the layer sizes predicted by the social brain hypothesis. Different algorithms were used to break the call frequencies into clusters.
More than just termites & nuts "...primates large brains reflect the computational demands of the complex social systems..." "...the social brain hypothesis has found near universal acceptance as the best explanation for the evolution of extensive variation in brain size among mammals
(van Schaik, et al., 2012, p.
Dunbar - Social Brain Hypothesis (2000) | Neocortex | Brain
(Kanai et al., 2012)
Translation: They have difficulty with processing basic social cues Brains are expensive "The human brain weighs about 2% of body weight but consumes 20% of total energy intake..." Why do primates - especially humans - need larger brains than other species to do the same jobs?
Dunbar 1998 The Social Brain Hypothesis Pdf | Langley …
...cause there must be an upper limit on the amount of time that can be devoted to social grooming, there will inevitably be an upper limit on the size of the group that can be bonded by this mechanism (=-=Dunbar, 1998-=-a). In actuality, of course, grooming time is constrained by the fact that animals have to forage for food. In practice, it seems that there is an upper limit on the amount of time that any given grou...
ARTICLES The Social Brain Hypothesis Robin I.M
...ow and maintain some form of relationship; the dynamics of the relationships among members of the network; and the politics, so to speak, of relations with other networks (Byrne, 1997; de Waal, 1982; =-=Dunbar, 1998-=-). Given this, it is not surprising that across species there is a direct relation between the species’ social complexity (e.g., as indexed by average group size) and brain size (Barton, 1996; Dunbar,...
What’s So Social About the Social Brain? | SpringerLink
Originally called the "Machiavellian Intelligence Hypothesis" The neocortex ratio of a species is the ratio of the size of the neocortex to the rest of the brain.
What’s So Social About the Social Brain
...ly reproducing species and especially for highly social species, much of the mind and brain is predicted to function to process and respond to social information (Barton, 1996; Brothers & Ring, 1992; =-=Dunbar, 1998-=-; Geary & Flinn, 2001; Humphrey, 1976). The third level represents functional modules as defined in the Appendix, whereas the fourth level represents cognitive modules, which in turn would be supporte...
sociality, as reflected in the social brain hypothesis, ..
The fact that it is this area of the brain that has become larger as human brain size has increased over time also fits nicely within a theory that regards the demands of social cognition as a central ‘driver’ of the evolution of the human brain.Keywords: , , , ,