Supplementary material from "Are monkeys intuitive Aristotelians? Associations between target size and vertical target position in long-tailed macaques"

Stefanie Keupp, Natàlia Barbarroja, Sascha Topolinski & Julia Fischer
Different hypotheses have been put forward to explain the interaction between size perception and spatial position. To explore the evolutionary roots of these phenomena, we tested long-tailed macaques' performance in a two-choice discrimination task on a touchscreen and contrasted two hypotheses. First, a hierarchy association in which large objects are associated with top positions, due to a link between power, dominance and importance with top position. Second, a naive Aristotelian association in which large objects...
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