Natural Choice in Chimpanzees (Pan troglodytes): Perceptual and Temporal Effects on Selective Value.

@article{Beran2009NaturalCI,
  title={Natural Choice in Chimpanzees (Pan troglodytes): Perceptual and Temporal Effects on Selective Value.},
  author={Michael Beran and Chasity L Ratliff and Theodore Alfred Evans},
  journal={Learning and motivation},
  year={2009},
  volume={40 2},
  pages={186-196}
}
In three experiments, four chimpanzees made choices between two visible food options to assess the validity of the selective value effect (the assignment of value to only the most preferred type of food presented in a comparison). In Experiment 1, we established that all chimpanzees preferred single banana pieces to single apple pieces before presenting the critical test. In this test two chimpanzees preferred a mix of one banana piece and one apple piece to a single banana piece when both… CONTINUE READING