Abstract
We used an artificial language as a tool for the study of spatial memory organization in a young Pan paniscus. In the first experiment, we showed the bonobo a road sign just outside its indoor sleeping area. The sign indicated, by means of arbitrarily designated geometrical shapes (lexigrams), where food was hidden. Only 2 of the 15 locations were visible from the sign. Distances ranged up to 170 m from the sign. In 99 of 127 test trials the bonobo went directly to the designated location on its first move. In a second experiment, we presented the road sign at varied points in the woods rather than at the original fixed place. In these trials the goal was a preferred toy. The bonobo's human companions were never told the location of the goal and distances were up to 650 m. In all 12 trials the bonobo led its companions to the designated place via an efficient path. The bonobo appeared to be able to move, based on the information provided by a lexigram, from almost any arbitrary starting location in its 20-ha environment to any one of the numerous goal locations.
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Menzel, C.R., Savage-Rumbaugh, E.S. & Menzel, E.W. Bonobo (Pan paniscus) Spatial Memory and Communication in a 20-hectare Forest. International Journal of Primatology 23, 601–619 (2002). https://doi.org/10.1023/A:1014925802015
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DOI: https://doi.org/10.1023/A:1014925802015