Bettle, R. & Rosati, A.G. (2020). The evolutionary origins of natural pedagogy: Rhesus monkeys show sustained attention following nonsocial cues versus social communicative signals. Developmental Science.[PDF] [Supplementary] [Videos] [Publisher’s version] AbstractThe natural pedagogy hypothesis proposes that human infants preferentially attend to communicative signals from others, facilitating rapid cultural learning. In this view, sensitivity to such signals are a uniquely human adaptation and as such nonhuman animals should not produce or utilize these communicative signals. We test these evolutionary predictions by examining sensitivity to communicative cues in 206 rhesus monkeys (Macaca mulatta) using an expectancy looking time task modeled on prior work with infants. Monkeys observed a human actor who either made eye contact and vocalized to the monkey (social cue), or waved a fruit in front of her face and produced a tapping sound (nonsocial cue). The actor then either looked at an object (referential look) or looked towards empty space (look away). We found that, unlike human infants in analogous situations, rhesus monkeys looked longer at events following nonsocial cues, regardless of the demonstrator’s subsequent looking behavior. Moreover, younger and older monkeys showed similar patterns of responses across development. These results provide support for the natural pedagogy hypothesis, while also highlighting evolutionary changes in human sensitivity to communicative signals.
Social cognition and cooperation
Rosati, A.G., Benjamin, N., Pieloch, K., Warneken, F. (2019). Economic trust in young children. Proceedings of the Royal Society B, 286: 20190822.[PDF] [Supplementary] [Supplementary Scripts] [Publisher’s Version] Abstract
Bettle, R. & Rosati, A.G. (2019). Flexible gaze following in rhesus monkeys. Animal Cognition, 22: 673-686.[PDF] [Supplementary] [Videos] [Publisher’s Version] Abstract
Rosati, A.G., DiNicola, L.M., & Buckholtz, J.W. (2018). Chimpanzee cooperation is fast and independent from self-control. Psychological Science, 29: 1832-1845.
Rosati, A.G., Arre, A.M., Platt, M.L., & Santos, L.R. (2018). Developmental shifts in social cognition: socioemotional biases across the lifespan in rhesus monkeys.Behavioral Ecology and Sociobiology, 72: 63.[PDF] [Video] [Supplementary] [Publisher’s Version] Abstract
Rosati, A.G. (2017). Chimpanzee cognition and the roots of the human mind. In: Chimpanzees and Human Evolution (M. Muller, R. Wrangham & D. Pilbeam, eds.). Cambridge: The Belknap Press of Harvard University Press, pp. 703-745.[PDF] Abstract
Rosati, A. G., & Santos, L. R. (2017). Tolerant Barbary macaques maintain juvenile levels of social attention in old age, but despotic rhesus macaques do not. Animal Behaviour, 130, 199-207.
Bettle, R., & Rosati, A. G. (2016). Understanding human gaze. In: Encyclopedia of Evolutionary Psychological Science (T. Shackelford and V. Weekes-Shackelford, eds.). Springer, pp. 1-4.
Rosati, A. G., Arre, A. M., Platt, M. L., & Santos, L. R. (2016). Rhesus monkeys show human-like changes in gaze following across the lifespan. Proceedings of the Royal Society B , 283, 20160376.
Leimgruber, K. L., Rosati, A. G., & Santos, L. R. (2016). Capuchins punish those who have more. Evolution and Human Behavior, 37, 236–244.
Rosati, A. G., Wobber, V., Hughes, K., & Santos, L. R. (2014). Comparative developmental psychology: How is human cognitive development unique?. Evolutionary Psychology, 12, 448-473.
Rosati, A. G., & Hare, B. (2012). Decision-making across social contexts: competition increases preferences for risk in chimpanzees and bonobos. Animal Behaviour, 84, 869-879.
Warneken, F., & Rosati, A. G. (2012). Early social cognition: How psychological mechanism can inform models of decision-making. In: Evolving the Mechanisms of Decision Making: Toward a Darwinian Decision Theory, Strüngmann Forum Reports, vol. 11 (P. Hammerstein and J. R. Stevens, eds.). Cambridge, MA: MIT Press, pp. 288-289.
Hare, B., Rosati, A. G., Kaminski, J., Braeuer, J., Call, J., & Tomasello, M. (2010). The domestication hypothesis for dogs’ skills with human communication: a response to Udell et al. (2008) and Wynne et al. (2008). Animal Behaviour , 79, e1-e6.
Rosati, A. G., Santos, L. R., & Hare, B. (2010). Primate social cognition: Thirty years after Premack and Woodruff. In: Primate Neuroethology (A. Ghazanfar and M. Platt, eds.). Oxford: Oxford University Press, pp. 117-143.[PDF] [Publisher’s Version] Abstract