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Mechanisms of same–different conceptualization: entropy happens
Journal article   Peer reviewed

Mechanisms of same–different conceptualization: entropy happens

Edward A Wasserman, Michael E Young and Leyre Castro
Current opinion in behavioral sciences, Vol.37, pp.19-28
02/2021
DOI: 10.1016/j.cobeha.2020.06.001

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Abstract

Can nonhuman animals learn abstract concepts? This intriguing question has been extensively studied over the past several decades with many different species and experimental methods. Here, we review evidence showing that pigeons can acquire a same–different concept: they readily learn to discriminate between arrays of same and different items as well as robustly transfer their discrimination to novel arrays of items. To do so, pigeons use the degree of visual variability in the collection of items, as measured by entropy. Not only pigeons, but baboons and human adults also use entropy in their discrimination of same from different items. Thus, entropy does seem to lie at the root of this basic abstract concept.

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