Primates

, Volume 46, Issue 4, pp 241–248

Food-exchange with humans in brown capuchin monkeys

Authors

  • Maud Drapier
    • Centre d’Ecologie, Physiologie et EthologieCentre National de la Recherche Scientifique, UPR 9010, 7 rue de l’Université
  • Christophe Chauvin
    • Centre d’Ecologie, Physiologie et EthologieCentre National de la Recherche Scientifique, UPR 9010, 7 rue de l’Université
  • Valérie Dufour
    • Centre d’Ecologie, Physiologie et EthologieCentre National de la Recherche Scientifique, UPR 9010, 7 rue de l’Université
  • Pierre Uhlrich
    • Centre d’Ecologie, Physiologie et EthologieCentre National de la Recherche Scientifique, UPR 9010, 7 rue de l’Université
    • Centre d’Ecologie, Physiologie et EthologieCentre National de la Recherche Scientifique, UPR 9010, 7 rue de l’Université
Original Article

DOI: 10.1007/s10329-005-0132-1

Cite this article as:
Drapier, M., Chauvin, C., Dufour, V. et al. Primates (2005) 46: 241. doi:10.1007/s10329-005-0132-1

Abstract

To assess how brown capuchin monkeys (Cebus apella) delay gratification and maximize payoff, we carried out four experiments in which six subjects could exchange food pieces with a human experimenter. The pieces differed either in quality or quantity. In qualitative exchanges, all subjects gave a piece of food to receive another of higher value. When the difference of value between the rewards to be returned and those expected was higher, subjects performed better. Only two subjects refrained from nibbling the piece of food before returning it. All subjects performed two or three qualitative exchanges in succession to obtain a given reward. In quantitative exchanges, three subjects returned a food item to obtain a bigger one, but two of them nibbled the item before returning it. Individual differences were marked. Subjects had some difficulties when the food to be returned was similar or equal in quality to that expected.

Keywords

ReciprocityGiftValueEconomicsSelf-controlCebus apella

Copyright information

© Japan Monkey Centre and Springer-Verlag 2005