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1
Bo-NO-bouba-kiki : picture-word mapping but no spontaneous sound symbolic speech-shape mapping in a language trained bonobo
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2
Collective knowledge and the dynamics of culture in chimpanzees
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3
Chimpanzees combine pant hoots with food calls into larger structures
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4
Thirty years of great ape gestures
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5
Speech-like rhythm in a voiced and voiceless orangutan call
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6
Sensitivity to relational similarity and object similarity in apes and children
Abstract: This research was supported by NSF SLC Grant SBE-0541957 awarded to the Spatial Intelligence and Learning Center (SILC), the Max Planck Society, and Swarthmore Lang Sabbatical Fellowship. ; Relational reasoning is a hallmark of sophisticated cognition in humans [1, 2]. Does it exist in other primates? Despite some affirmative answers [3, 4, 5, 6, 7, 8, 9, 10, 11], there appears to be a wide gap in relational ability between humans and other primates—even other apes [1, 2]. Here, we test one possible explanation for this gap, motivated by developmental research showing that young humans often fail at relational reasoning tasks because they focus on objects instead of relations [12, 13, 14]. When asked, “duck:duckling is like tiger:?,” preschool children choose another duckling (object match) rather than a cub. If other apes share this focus on concrete objects, it could undermine their relational reasoning in similar ways. To test this, we compared great apes and 3-year-old humans’ relational reasoning on the same spatial mapping task, with and without competing object matches. Without competing object matches, both children and Pan species (chimpanzees and bonobos) spontaneously used relational similarity, albeit children more so. But when object matches were present, only children responded strongly to them. We conclude that the relational gap is not due to great apes’ preference for concrete objects. In fact, young humans show greater object focus than nonhuman apes. ; Postprint ; Peer reviewed
Keyword: BDC; BF; BF Psychology; NDAS; QL; QL Zoology; R2C; RC0321; RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
URL: https://doi.org/10.1016/j.cub.2015.12.054
http://hdl.handle.net/10023/10229
https://www.sciencedirect.com/science/article/pii/S0960982215015857?via%3Dihub#app2
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7
Inferences about food location in three cercopithecine species : an insight into the socioecological cognition of primates
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8
Functional flexibility in wild bonobo vocal behaviour
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9
The meanings of chimpanzee gestures
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10
Chimpanzee alarm call production meets key criteria for intentionality
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