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    A common representation of fingers and toes

    Manser-Smith, Kelda and Tamè, Luigi and Longo, Matthew (2019) A common representation of fingers and toes. Acta Psychologica 199 , p. 102900. ISSN 0001-6918. (In Press)

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    Abstract

    There are many similarities and differences between the human hands and feet. On a psychological level, there is some evidence from clinical disorders and studies of tactile localisation in healthy adults for deep functional connections between the hands and feet. One form these connections may take is in common high-level mental representations of the hands and feet. Previous studies have shown that there are systematic, but distinct patterns of confusion found between both the fingers and toes. Further, there are clear individual differences between people in the exact patterns of mislocalisations. Here, we investigated whether these idiosyncratic differences in tactile localisation are shared between the fingers and toes, which may indicate a shared high-level representation. We obtained confusion matrices showing the pattern of mislocalisation on the hairy skin surfaces of both the fingers and toes. Using a decoding approach, we show that idiosyncratic differences in individuals’ pattern of confusions are shared across the fingers and toes, despite different overall patterns of confusions. These results suggest that there is a common representation of the fingers and toes.

    Metadata

    Item Type: Article
    School: Birkbeck Schools and Departments > School of Science > Psychological Sciences
    Depositing User: Matthew Longo
    Date Deposited: 31 Jul 2019 12:33
    Last Modified: 22 Aug 2019 10:32
    URI: http://eprints.bbk.ac.uk/id/eprint/28398

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