How great apes perform on a modified trap-tube task

Animal Cognition
Nicholas J Mulcahy, Josep Call

Abstract

To date, neither primates nor birds have shown clear evidence of causal knowledge when attempting to solve the trap tube task. One factor that may have contributed to mask the knowledge that subjects may have about the task is that subjects were only allowed to push the reward away from them, which is a particularly difficult action for primates in certain problem solving situations. We presented five orangutans (Pongo pygmaeus), two chimpanzees (Pan troglodytes), two bonobos (Pan paniscus), and one gorilla (Gorilla gorilla) with a modified trap tube that allowed subjects to push or rake the reward with the tool. In two additional follow-up tests, we inverted the tube 180 degrees rendering the trap nonfunctional and also presented subjects with the original task in which they were required to push the reward out of the tube. Results showed that all but one of the subjects preferred to rake the reward. Two orangutans and one chimpanzee (all of whom preferred to rake the reward), consistently avoided the trap only when it was functional but failed the original task. These findings suggest that some great apes may have some causal knowledge about the trap-tube task. Their success, however, depended on whether they were allowed to ...Continue Reading

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Citations

Dec 16, 2006·Animal Cognition·Sabine TebbichNicola S Clayton
Jul 26, 2008·Animal Cognition·Amanda E BaniaSarah T Boysen
Dec 7, 2010·Animal Cognition·Héctor Marín Manrique, Josep Call
May 1, 2012·Animal Cognition·Gema Martin-OrdasJosep Call
May 15, 2013·Primates; Journal of Primatology·Matthias AllritzJosep Call
May 16, 2008·The Behavioral and Brain Sciences·Derek C PennDaniel J Povinelli
Sep 18, 2008·Proceedings. Biological Sciences·A H TaylorR D Gray
Jun 27, 2012·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Daphna BuchsbaumAlison Gopnik
Jan 10, 2013·PloS One·Gema Martin-OrdasJosep Call
Jul 12, 2013·PloS One·Judith Maria Burkart, Katja Rueth
Oct 18, 2013·Animal Cognition·Nicholas J Mulcahy, Michèle N Schubiger
Aug 9, 2006·Journal of Comparative Psychology·Anne E HelmeNathan J Emery
Nov 17, 2011·Behavioural Processes·Tebbich SabineStankewitz Sophia
Aug 7, 2013·Cognitive Science·Deena S Weisberg, Alison Gopnik
Sep 16, 2014·American Journal of Primatology·Lydia M HopperElizabeth V Lonsdorf
Aug 27, 2015·Wiley Interdisciplinary Reviews. Cognitive Science·Alex H Taylor, Russell D Gray
Sep 2, 2009·Communicative & Integrative Biology·Alex TaylorRussell Gray
Mar 31, 2009·Current Opinion in Neurobiology·Nathan J Emery, Nicola S Clayton
Dec 10, 2013·Cognition·Christoph J Völter, Josep Call
Jun 16, 2012·The Behavioral and Brain Sciences·Alex H Taylor, Nicola S Clayton
Sep 12, 2012·The Behavioral and Brain Sciences·Krist Vaesen
Nov 12, 2016·Cognition·Toyomi Matsuno, Masaki Tomonaga
Feb 27, 2019·Primates; Journal of Primatology·Kristin E BonnieLydia M Hopper
Nov 18, 2016·Royal Society Open Science·Christian RutzJames J H St Clair
Feb 23, 2017·Frontiers in Psychology·Johan LindMagnus Enquist
Aug 1, 2020·Frontiers in Psychology·Amalia P M Bastos, Alex H Taylor
Dec 20, 2018·Royal Society Open Science·Johan Lind
Apr 30, 2019·Royal Society Open Science·Johan LindMagnus Enquist
Sep 29, 2020·Frontiers in Psychology·Michèle N SchubigerJudith M Burkart
Oct 23, 2020·Animal Cognition·F Blake Morton
Dec 9, 2020·Learning & Behavior·Laurie O'NeillAuguste M P von Bayern
Jan 5, 2021·Biochemical and Biophysical Research Communications·Alexandra K Schnell, Nicola S Clayton

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