The role of past interactions in great apes’ communication about absent entities
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Recent evidence suggests that great apes can use the former location of an entity to communicate about it. In this study we built on these findings to investigate the social cognitive foundations of great apes’ communicative abilities. We tested whether great apes (n = 35) would adjust their requests for absent entities to previous interactions they had with their interlocutor. We manipulated the apes’ experience with respect to the interlocutor’s knowledge about the previous content of the now empty location, as well as their experience with the interlocutor’s competence to provide additional food items. We found that apes adjusted their requests to both of these aspects but failed to integrate them with one another. These results demonstrate a surprising amount of flexibility in great apes’ communicative abilities while at the same time suggesting some important limitations in their social communicative skills.
Bohn , M , Call , J & Tomasello , M 2016 , ' The role of past interactions in great apes’ communication about absent entities ' Journal of Comparative Psychology , vol In press . DOI: 10.1037/com0000042
Journal of Comparative Psychology
© 2016 American Psychological Association. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1037/com0000042
M. Bohn was supported by a scholarship of the German National Academic Foundation. J. Call was supported by the “SOMICS” ERC-Synergy grant (nr. 609819).
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