The social intelligence hypothesis links the evolution of exceptional cognitive skills to the requirements of complex social systems. Empirical evidence of a connection between cognitive skills and social behaviour on an individual level is lacking. I investigated how cognitive performance in carrion crows correlates with social behaviour. Social behaviour was observed and crows were tested in four tasks previously published elsewhere: qualitative exchange, quantity preference, inequity aversion, heterospecific recognition. I describe correlations between an individuals’ involvement in affiliative and aggressive encounters and performance during these different cognitive tasks. For example, individuals performing better in the qualitative exchange task received more approaches and affiliative interactions. There was a correlation between birds choosing higher quantities during testing and their propensity to initiate aggressive and affiliative interactions with others. Overall these results show a link between social behaviour and individual performance in cognitive tasks.
Chimpanzees and capuchin monkeys: comparative cognition. — In:
Reaching into thought: the minds of the great apes (
RussonA.E.BardK.A.ParkerS.T. eds). Cambridge University PressCambridge p.
Dolphin social intelligence: complex alliance relationships in bottlenose dolphins and a consideration of selective environments for extreme brain size evolution in mammals. —
Phil. Trans. Roy. Soc. Lond. B362:
The structure of a bottlenose dolphin society is coupled to a unique foraging cooperation with artisanal fishermen. —
Measures of classroom quality in prekindergarten and children’s development of academic, language and social skills. —
Sociality and social learning in two species of corvids: the pinyon jay (Gymnorhinus cyanocephalus) and the Clark’s nutcracker (Nucifraga columbiana). —
J. Comp. Psychol.113: