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    Conceptual distortions of hand structure are robust to changes in stimulus information

    Ambroziak, K.B. and Tamè, Luigi and Longo, Matthew R. (2018) Conceptual distortions of hand structure are robust to changes in stimulus information. Consciousness and Cognition 61 , pp. 107-116. ISSN 1053-8100.

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    Abstract

    Previous studies showed stereotyped distortions in hand representations. People judge their knuckles as farther forward in the hand than they actually are. The cause of this bias remains unclear. We tested whether both visual and tactile information contribute to the bias. In Experiment 1, participants judged the location of their knuckles by pointing to the location on their palm with: (1) a metal baton (using vision and touch), (2) a metal baton while blindfolded (using touch), or (3) a laser pointer (using vision). Distal mislocalisations were found in all conditions. In Experiment 2, we investigated whether judgments are influenced by visual landmarks such as creases. Participants localized their knuckles on either a photograph of their palm or a silhouette. Distal mislocalisations were apparent in both conditions. These results show that distal biases are resistant to changes in stimulus information, suggesting that such mislocalisations reflect a conceptual mis-representation of hand structure.

    Metadata

    Item Type: Article
    School: Birkbeck Schools and Departments > School of Science > Psychological Sciences
    Depositing User: Matthew Longo
    Date Deposited: 10 Jan 2018 13:01
    Last Modified: 28 Jan 2019 10:39
    URI: http://eprints.bbk.ac.uk/id/eprint/20747

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