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    Target animacy influences gorilla handedness

    Forrester, Gillian and Leavens, D.A. and Quaresmini, C. and Vallortigara, G. (2011) Target animacy influences gorilla handedness. Animal Cognition 14 (6), pp. 903-907. ISSN 1435-9448.

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    We investigated the unimanual actions of a biological family group of twelve western lowland gorillas (Gorilla gorilla gorilla) using a methodological approach designed to assess behavior within social context from a bottom-up perspective. Measures of both the lateralization of unimanual actions (left, right) and the target of the action (animate, inanimate) were assessed during dual, synchronized video observations of naturalistic behavior. This paper demonstrates a corelationship between handedness and the animate quality of the target object. Analyses demonstrated a significant interaction between lateralized unimanual actions and target animacy and a right-hand bias for actions directed toward inanimate targets. We suggest that lateralized motor preference reflects the different processing capabilities of the left and right hemispheres, as influenced by the emotive (animate) and/or functional (inanimate) characteristics of the target, respectively.


    Item Type: Article
    Additional Information: The final publication is available at Springer via the link above.
    Keyword(s) / Subject(s): Handedness, Animacy, Hemispheric specialization, Gorilla
    School: Birkbeck Faculties and Schools > Faculty of Science > School of Psychological Sciences
    Depositing User: Administrator
    Date Deposited: 14 Nov 2016 11:52
    Last Modified: 02 Aug 2023 17:27


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