Laméris, D. W. http://orcid.org/0000-0002-3096-7920
van Berlo, E. http://orcid.org/0000-0002-5523-7721
Roth, T. S. http://orcid.org/0000-0002-2985-120X
Kret, M. E. http://orcid.org/0000-0002-3197-5084
Funding for this research was provided by:
Fonds Wetenschappelijk Onderzoek (11G3220N)
Dobberke Foundation for Comparative Psychology (UPS/BP/3551)
Templeton World Charity Foundation (TWCF0267)
H2020 European Research Council (804582)
Article History
Received: 15 December 2021
Accepted: 23 September 2022
First Online: 24 November 2022
Additional Information
:
: This research was supported by Research Foundation Flanders (FWO 11G3220N to DWL), the Dobberke Foundation for Comparative Psychology (UPS/BP/3551 to EB), the Templeton World Charity Organization (TWCF0267 to MEK), and the European Research Council (Starting grant #804582 to MEK).
: The authors declare no competing interests.
: All data that are associated with this paper and used to conduct the analyses are accessible on the archiving platform Dataverse NL through the last author’s institute, Leiden University: ExternalRef removed. For copyright reasons, all stimuli are available upon request via Dataverse NL.
: All software and code adjustments that are associated with this paper are openly accessible on the archiving platform Dataverse NL through the last author’s institute, Leiden University: ExternalRef removed.
: EvB, DWL, and MEK developed the study concept and designed the dot-probe task. DWL and TSR collected the data. Data analysis and interpretation were performed by EvB, DWL, TSR, and MEK. DWL and EvB drafted the majority of the paper, with critical contributions of TSR and MEK. All authors approved the final version of the manuscript for submission.
: All procedures performed in the study were adhering to the guidelines of the EAZA Ex Situ Program (EEP), formulated by the European Association of Zoos and Aquaria (EAZA), as well as to the guidelines formulated by primate park Apenheul. Orangutans participated voluntarily and were only positively reinforced.
: Apenheul provided written and signed consent for conducting our studies with orangutans.
: The authors confirm that Apenheul provided written and signed consent for publication of the data collected in the study, as well as for publication of the figures in the manuscript.