Abstract
Activities ordinarily performed by an animal in a given place may influence the way it behaves towards an object newly found there. We examined the use of probing tools in a group of 4 wedge-capped capuchins (Cebus olivaceus), in the home cage into which we simultaneously introduced two identical apparatuses, one at a site ordinarily used to manipulate objects, and the other at a site mainly used for visual monitoring. We expected that spatial facilitation would occur, i.e., the subjects would be more efficient at the site where manipulative behaviors were more frequently performed. Two monkeys used probing tools to extract syrup from the openings of the apparatuses. Tool use efficiency was higher with the apparatus located at the site where they had performed more manipulative and combinative behaviors. These results are consistent with the hypothesis of spatial facilitation and illustrate the fact that spatial context can be an overwhelming variable that should not be neglected in behavioral research dealing with instrumental tasks.
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Dubois, M., Gerard, JF., Sampaio, E. et al. Spatial Facilitation in a Probing Task in Wedge-Capped Capuchins (Cebus olivaceus). International Journal of Primatology 22, 993–1006 (2001). https://doi.org/10.1023/A:1012065605329
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DOI: https://doi.org/10.1023/A:1012065605329