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A critical review of Dunbar's social brain hypothesis
Acedo-Carmona, Cristina Flores; Gomila, Antoni (Instituto de Estudios Sociales Avanzados (IESA-CSIC), 2016)Dunbar’s social brain hypothesis constitutes an influential position among those that relate the evolution of human cognition and sociality. In this work, we first present the essentials of the theory and discuss the ... -
Personal trust extends cooperation beyond trustees: a Mexican study
Acedo-Carmona, Cristina; Gomila, Antoni (Wiley, 2019)We studied 2 groups of workers from Oaxaca (Mexico) with different levels of income and education to investigate the role that the affective-based psychological mechanism of personal trust, as evolutionarily acquired, plays ... -
Testing the cultural group selection hypothesis in Northern Ghana and Oaxaca
Acedo-Carmona, Cristina; Gomila, Antoni (Cambridge University Press, 2016)We examine the cultural group selection (CGS) hypothesis in light of our fieldwork in Northern Ghana and Oaxaca, highly multiethnic regions. Our evidence fails to corroborate two central predictions of the hypothesis: that ... -
Trust-based altruism facing new contexts: the Vyegwa-Gika pygmies from Burundi
Acedo-Carmona, Cristina; Munar, Enric; Gomila, Antoni (Public Library Science, 2018)The community of Pygmies settled in Vyegwa-Gika provides an exceptional case study to test the role of trust in the evolution of altruism. The Vyegwa-Gika Pygmies were forced to migrate from rainforests to the savanna, ...