The Naïve Sociology of Resource Transfer an Empirical Investigation of the Inferential Links Between Sharing Behaviors and Relational Models in Human Infants

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The Naïve Sociology of Resource Transfer an Empirical Investigation of the Inferential Links Between Sharing Behaviors and Relational Models in Human Infants The naïve sociology of resource transfer An empirical investigation of the inferential links between sharing behaviors and relational models in human infants Denis Tatone Submitted to: Central European University Department of Cognitive Science In partial fulfillment of the requirements for the degree of Doctor of Philosophy in Cognitive Science Primary supervisor: Gergely Csibra Secondary supervisor: Dan Sperber CEU eTD Collection Budapest, Hungary 2017 Declaration of Authorship I hereby declare that this submission is my own work and to the best of my knowledge it contains no materials previously published or written by another person, or which have been accepted for the award of any other degree or diploma at Central European University or any other educational institution, except where due acknowledgment is made in the form of bibliographical reference. Denis Tatone CEU eTD Collection i Abstract The ubiquitous occurrence of active transfer (giving) in the domain of nonkin interactions represents one of the most distinguishing features of the human sharing complex, and a striking departure from the sharing behavior of non-human primates, where giving occurs rarely and only in the presence of dependent offspring. The re-deployment of giving outside of parental-care contexts, we surmise, reflects human-unique selective pressures for the formation of cooperative partnerships to smooth the risks of high-variance foraging via reciprocal sharing. The co-variation between giving and reciprocally patterned relationships, we hypothesize, represented an evolutionarily recurrent feature of our ancestral social ecology, which has been captured in the human cognitive system in the form of an adaptive prior: an inbuilt propensity to infer from the occurrence of a giving-based interactions the existence of an underlying relationship regulated on reciprocal exchange. Borrowing from Fiske’s (1992) Relational Models Theory, we characterize such relationship as conforming to the equality- matching (EM) model (i.e., a model governed by a directive standard of even balance). Building on these premises, the present work seeks to experimentally investigate such sensitivity to giving as cue of EM relationships in human infants. The dissertation is composed of five sets of studies (excluding the Appendix), which addressed this hypothesis at different levels: first, by assessing whether infants are capable of representing giving actions, and which are the minimal input conditions for inducing such representation (Chapters III and IV); second, by testing whether infants encode information functional for the bookkeeping of welfare imbalances (a socially relevant aspect of EM relationships) selectively for giving-based interactions (Chapters V and VI); and, third, by exploring whether infants expect equal resource division specifically for allocation procedures involving active distribution (Chapter VII). The findings produced by these studies convergently supported the hypothesis that the observation of giving primes the representation of EM relationships, additionally suggesting that superficially similar transferring actions (i.e., unresisted taking) may elicit fundamentally different inferences about the coordination rules adopted by the sharing partners. These results have two major implications for the research on early social cognition. Firstly, they demonstrate that CEU eTD Collection infants are equipped with a rich conceptual repertoire of possession-related actions, which they exploit to infer different rules for regulating benefit exchange over time. Secondly, they suggest that, beyond the attribution of morally relevant dispositions and the representation of cooperative/competitive coalitions, infants’ naïve sociology also encompasses the understanding and classification of social relationships on the basis of different rules of long-term exchange and benefit distribution. ii To Melanie, who met me in the darkest of times and yet stood her ground. CEU eTD Collection iii Acknowledgments This thesis was meant to be completed in May 2015, just a few months after the end of my third year of PhD, which had been to that point a hectic and engrossing adventure. Instead, its writing stretched over two years, through a dark and nonsensical period which robbed me of any motivation and lucidity – and it shows. If it wasn’t for the people mentioned below, I would have never found the courage to complete this work. To them, I owe the only chance I have to resume this adventure and see where it leads. I would first like to express all my gratitude to Gergely Csibra for his guidance, scrutiny, and infinite patience (especially during these last two years). Our scientific collaboration has been one of the most enriching experiences of my recent life, without any doubts. For his unwavering analytic rigor, his wariness of folk intuitions, the relentless emphasis on building sound theories before chasing studies, and that distinctive zeal to approach the mind with the vocabulary of costs and benefits – for all these reasons, and more, he will be always a scientist and a mentor to look up to. I wish one day my work would show how deep his influence runs. Thank you, Gergo. The second person I would like to thank is Dan Sperber, for the solicitude, kindness, and obstinate trust he showed me throughout these years. He never ceased to encourage me, when I needed a spur, and dispense discernment, when I needed to regain the right perspective on things. Beyond the sharp-sighted anthropologist, the riveting storyteller and voracious reader, the man of hundred lives and thousand anecdotes, he has always been a most caring friend with me. Third goes my family: my father, Dante, for never having let adversities bend his faith in me, even when life itself seemed at stake; my mother, Anna, for her pervading care and sanguine optimism, which she always held high against my gloomiest spirits; my brother, Ivan, who taught me to never let inertia or habits decide about my priorities; and Valentina, for having brought new cheerful vibes in our haven. None of this would have been possible without your constant support CEU eTD Collection and unbroken affection. There will be never enough words of gratitude for Raffaella Marino, who lent her shoulder, contagious smile, and attentive ears to my tribulations whenever needed. More than a friend, more than a sister: you have been defying social categories for almost twenty years. Enri Nako, you too i deserve to be thanked for all the wit, attention, and timely medical wisdom you have been feeding me with, especially during these last months of diagnostic odyssey. I cannot avoid mentioning Martin Freundlieb: the jester, the gangster, the movie critic, the gym buddy, the dinner guest. Without our friendship, six years in the making, this city would have swallowed me whole. Thank you, mate. Huge thanks to Barbara Pomiechowska, for her divine forbearance and earnest affection. You infused the first years of my PhD with brimming purpose, and left a most important teaching behind your footsteps. Thank you, Georgina Török, Francesca Bonalumi, Laura Schlingloff, Thomas Wolf, Nazli Altinok, and Helena Miton for having knocked at my door when I least expected it. Thanks also to Dora Kampis, Rubeena Shamshudeen, Francesca Giardini, and Oliver Morin for having made the stormy beginnings of the PhD an easier sea to sail on, and to Laura Schmitz, Sara Jellinek, and Eszter Szabo for having patiently borne with my amateurish movie-making skills. I am also thankful to Olivier Mascaro & Mikołaj Hernik, for the helpful advices, generous heed, and inadvertent insights they gave me along the way. I would like to thank Jun Yin too, for having been so incredibly receptive to my ideas. Kristen Dunfield, for having darted straight into science and the hefty matters of life, and dispensed me of any academic small talk, thank you. Gina Eickers, for having squatted in the back of my brain for so long, despite never having been seen, thank you too. I am extremely grateful to Agnes Volein, and Mária Tóth, Andrea Schrök, for their discreet and assiduous work, which made the daunting task of running studies and organizing conferences such a smooth journey. A special, heartfelt “thank you!” goes to Györgyné Finta for all these years CEU eTD Collection of swift, motherly help. Needless to say, none of my studies would have been possible without the tireless assistance of Szilvia Takács and Borbála Széplaki-Köllőd – your contribution has been truly invaluable. Finally, I am thankful to all the parents and infants who volunteered in my studies, and to CEU for providing me with the financial support required to complete this thesis. ii The present thesis is primarily based on the following publications: Csibra, G., Hernik, M., Mascaro, O., Tatone, D., & Lengyel, M. (2016). Statistical treatment of looking-time data. Developmental psychology, 52(4), 521-536. Tatone, D., Geraci, A., & Csibra, G. (2015). Giving and taking: Representational building blocks of active resource-transfer events in human infants. Cognition, 137, 47-62. CEU eTD Collection iii Table of contents Chapter I. General Introduction .................................................................... 2 1.1 Sharing, a human universal ....................................................................................................... 2 1.1.1 Cutting at the joints of sharing ........................................................................................ 2 1.1.2 The adaptive link between
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