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    Unraveling the evolution of uniquely human cognition

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    MacLean_PNAS_Special_Issue_R1_ ...
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    Description:
    Final Accepted Manuscript
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    Author
    MacLean, Evan L.
    Affiliation
    Univ Arizona, Sch Anthropol
    Issue Date
    2016-06-07
    Keywords
    cognitive evolution
    human evolution
    comparative psychology
    human uniqueness
    cognition
    
    Metadata
    Show full item record
    Publisher
    NATL ACAD SCIENCES
    Citation
    Unraveling the evolution of uniquely human cognition 2016, 113 (23):6348 Proceedings of the National Academy of Sciences
    Journal
    Proceedings of the National Academy of Sciences
    Rights
    Copyright © 2016 The Author. Published by National Academy of Sciences.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    A satisfactory account of human cognitive evolution will explain not only the psychological mechanisms that make our species unique, but also how, when, and why these traits evolved. To date, researchers have made substantial progress toward defining uniquely human aspects of cognition, but considerably less effort has been devoted to questions about the evolutionary processes through which these traits have arisen. In this article, I aim to link these complementary aims by synthesizing recent advances in our understanding of what makes human cognition unique, with theory and data regarding the processes of cognitive evolution. I review evidence that uniquely human cognition depends on synergism between both representational and motivational factors and is unlikely to be accounted for by changes to any singular cognitive system. I argue that, whereas no nonhuman animal possesses the full constellation of traits that define the human mind, homologies and analogies of critical aspects of human psychology can be found in diverse nonhuman taxa. I suggest that phylogenetic approaches to the study of animal cognition-which can address questions about the selective pressures and proximate mechanisms driving cognitive change-have the potential to yield important insights regarding the processes through which the human cognitive phenotype evolved.
    Note
    Authors retain copyright and extensive rights to use and reuse their work. These rights include, on acceptance for publication by PNAS, depositing the final author manuscript in an institutional repository, provided that the PNAS-formatted PDF is not used and a link to the article on the PNAS website is included.
    ISSN
    0027-8424
    1091-6490
    DOI
    10.1073/pnas.1521270113
    Version
    Final accepted manuscript
    Sponsors
    Stanton Foundation
    Additional Links
    http://www.pnas.org/lookup/doi/10.1073/pnas.1521270113
    ae974a485f413a2113503eed53cd6c53
    10.1073/pnas.1521270113
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