Abstract
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.
Original language | English |
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Pages (from-to) | 531-535 |
Journal | Current Biology |
Volume | 26 |
Issue number | 4 |
Early online date | 4 Feb 2016 |
DOIs | |
Publication status | Published - 22 Feb 2016 |
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Josep Call
- School of Psychology and Neuroscience - Professor in Evolutionary Origins of Mind
- Centre for Social Learning & Cognitive Evolution
- Institute of Behavioural and Neural Sciences
Person: Academic