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. 2014 Oct 13;8:122. doi: 10.3389/fncir.2014.00122

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Copyright © 2014 Soto and Wasserman.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution and reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Diagram summarizing our current working hypothesis regarding the computational mechanisms involved in object recognition across vertebrates. The outer portion of the diagram consists of a phylogenetic tree, with leafs representing the most commonly studied genera in comparative cognition. The concentric circles at the center represent different hypothesized computational mechanisms. If a line is drawn from a particular leaf to the center of the diagram, then the colors intersected by the line represent those mechanisms hypothesized to be present in that particular genus.