Yvonne Rekers's research while affiliated with Max Planck Institute for Evolutionary Anthropology and other places
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Publications (3)
All primates learn things from conspecifics socially, but it is not clear whether they conform to the behavior of these conspecifics-if conformity is defined as overriding individually acquired behavioral tendencies in order to copy peers' behavior. In the current study, chimpanzees, orangutans, and 2-year-old human children individually acquired a...
Cultural transmission is a key component of human evolution. Two of humans' closest living relatives, chimpanzees and orangutans, have also been argued to transmit behavioral traditions across generations culturally [1-3], but how much the process might resemble the human process is still in large part unknown. One key phenomenon of human cultural...
Human societies are built on collaborative activities. Already from early childhood, human children are skillful and proficient collaborators. They recognize when they need help in solving a problem and actively recruit collaborators [1, 2]. The societies of other primates are also to some degree cooperative. Chimpanzees, for example, engage in a v...
Citations
... Second, this simplified definition of 'copy the majority' is sometimes used only for cases where an individual performing behaviour A changes to behaviour B to follow the majority (e.g. Cialdini & Goldstein, 2004;Cherng et al., 2014;Haun, Rekers & Tomasello, 2014). For example, wild male vervet monkeys (Chlorocebus pygerythrus) that migrate to a new group will abandon personal foraging preferences in favour of the new group norms (van de Waal, Borgeaud & Whiten, 2013). ...
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... For example, when learning the name of a novel object, preschoolers were more likely to endorse information that had been approved by three consensual informants over a lone dissenter Corriveau & Harris, 2010). Similarly, children were also more likely to imitate the use of a novel tool demonstrated by three agents compared to that displayed by a single individual (DiYanni, Corriveau, Kurkul, Nasrini, & Nini, 2015;Haun, Rekers, & Tomasello, 2012). Thus, perhaps when a consensus or near consensus exists for a moral issue, children are similarly sensitive to the majority view of their cultural community. ...
... The argument for the uniqueness is based on experimental studies where researchers interact in social problem-solving games with either toddlers/children or chimpanzees. In these studies, when the researcher stops their activity, the children (18-24 months old), but not the chimpanzees, attempt to reengage the researcher in the shared activity, which is interpreted as an interest in and recognition of the joint commitment for the children, but not the chimpanzees (Warneken et al., 2006), and children (34-40 months old), not chimpanzees, continue to collaborate even if they could get the reward by themselves (Rekers et al., 2011). In contrast to this view, several observational studies of interactions have provided evidence of nonhuman primates (including chimpanzees) engaging in shared intentionality during imitation games (Persson et al., 2018) and rough-andtumble play (Heesen et al., 2017), satisfying the criteria of cooperation ascribed to toddlers, for example, being motivated to collaborate for noninstrumental reasons, giving credence to the theory that the evolutionary roots of shared intentionality are shared with at least other great ape species (Persson et al., 2018). ...
