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dc.contributor.authorLameira, Adriano R.
dc.contributor.authorCall, Josep
dc.identifier.citationLameira , A R & Call , J 2018 , ' Time-space–displaced responses in the orangutan vocal system ' , Science Advances , vol. 4 , no. 11 , eaau3401 .
dc.identifier.otherPURE: 256600581
dc.identifier.otherPURE UUID: 50234af1-1f73-4a5f-a080-0be9440f85c9
dc.identifier.otherRIS: urn:B8647A77CA22C02076C30B60F0FD2B88
dc.identifier.otherScopus: 85056557529
dc.identifier.otherORCID: /0000-0002-8597-8336/work/50743996
dc.identifier.otherWOS: 000452212000038
dc.descriptionThe study was funded by the European Union’s Horizon 2020 Research and Innovation Program under the Marie Skłodowska-Curie grant agreement no. 702137 attributed to A.R.L.en
dc.description.abstractOne of the defining features of language is displaced reference—the capacity to transmit information about something that is not present or about a past or future event. It is very rare in nature and has not been shown in any nonhuman primate, confounding, as such, any understanding of its precursors and evolution in the human lineage. Here, we describe a vocal phenomenon in a wild great ape with unparalleled affinities with displaced reference. When exposed to predator models, Sumatran orangutan mothers temporarily suppressed alarm calls up to 20 min until the model was out of sight. Subjects delayed their vocal responses in function of perceived danger for themselves, but four major predictions for stress-based mechanisms were not met. Conversely, vocal delay was also a function of perceived danger for another—an infant—suggesting high-order cognition. Our findings suggest that displaced reference in language is likely to have originally piggybacked on akin behaviors in an ancestral hominid.
dc.relation.ispartofScience Advancesen
dc.rightsCopyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license, which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.en
dc.subjectBF Psychologyen
dc.subjectQL Zoologyen
dc.titleTime-space–displaced responses in the orangutan vocal systemen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.Centre for Social Learning & Cognitive Evolutionen
dc.contributor.institutionUniversity of St Andrews.School of Psychology and Neuroscienceen
dc.description.statusPeer revieweden

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