Exchange of objects between humans and captive western lowland gorillas

@article{Chalmeau2007ExchangeOO,
  title={Exchange of objects between humans and captive western lowland gorillas},
  author={Raphael Chalmeau and Patricia Peignot},
  journal={Primates},
  year={2007},
  volume={39},
  pages={389-398}
}
An experiment was carried out to assess the ability of captive western lowland gorillas (Gorilla g. gorilla) to exchange objects with a human partner. Before the exchange itself, individuals had to learn to give an item to the experimenter. Four individuals out of nine performed active giving. After that familiarization with giving behaviour, two kinds of exchanges, of increasing complexity, were tested with gorillas. Simple exchange (give C to obtain D) was the first procedure and six gorillas… 

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References

SHOWING 1-10 OF 32 REFERENCES
Cooperation in primates: Critical analysis of behavioural criteria
TLDR
It is suggested that the goal, viewed as a concrete benefit shared by the partners, is not a requisite of cooperation but rather a possible consequence of a common action largely submitted to social constraints.
Do chimpanzees cooperate in a learning task?
The aim of this study was to assess the ability of chimpanzees (Pan troglodytes) to cooperate in an instrumental task. A specially constructed fruit distributor was presented to a group of six
Cooperative Problem Solving by Orangutans (Pongo pygmaeus)
A captive pair of subadult male orangutans (Pongo pygmaeus) performed a cooperative task without training. Both partners had to pull a handle simultaneously in order for each to get food. They also
Food sharing and reciprocal obligations among chimpanzees
Food sharing has been proposed as the propeller of hominid evolution, particularly of the development of systems of mutual social obligation. Yet, food sharing in our closest relative has never been
Food exchange strategies in an infant chimpanzee
TLDR
Chimpanzees have the cognitive capacities for qualitatively adaptive and quantitatively optimal resource exchange; why these capacities are not used in the wild is discussed as a function of hypotheses bearing on foraging patterns and social structure.
Self-recognition and self-awareness in lowland gorillas.
Self-recognition in mirrors is considered an indicator of self-awareness, a capacity once assumed to be present only in human beings. Gordon Gallup's initial studies using the face-marking test, and
Preliminary data on voluntary food sharing in brown capuchin monkeys
TLDR
Spontaneous interactions over fruits and vegetables were observed in a captive group of Cebus apella and the voluntary nature of food transfers was further investigated in an experiment in which two monkeys were placed in adjacent cages with a wire‐mesh partition between them.
Self-recognition in chimpanzees and orangutans, but not gorillas
Recognition of one's own reflection in a mirror qualifies as an objective test of self-awareness. Although most primates appear incapable of learning that their behavior is the source of the behavior
Acquisition by a pigtail macaque of behavior patterns beyond the natural repertoire of the species.
  • M. Bertrand
  • Art, Medicine
    Zeitschrift fur Tierpsychologie
  • 1976
TLDR
An analysis of the constraints on learning to control elimination and to give in nonhuman primates shows that only certain components of these behaviors are contraprepared.
Tool-using skills of orang-utans
TLDR
The results on tool-using skills and mental capacities of these great apes are consistent with currently discussed hypotheses on the evolution of primate intelligence and can be explained without contradiction with regard to orang-utan adaptive strategies in their natural habitat.
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2
3
4
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