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A common representation of fingers and toes

Manser-Smith, Kelda, Tamè, Luigi, Longo, Matthew R. (2019) A common representation of fingers and toes. Acta Psychologica, 199 . Article Number 102900. ISSN 0001-6918. (doi:10.1016/j.actpsy.2019.102900) (KAR id:75871)

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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.

Item Type: Article
DOI/Identification number: 10.1016/j.actpsy.2019.102900
Uncontrolled keywords: body representation, somatosensation, tactile localisation, fingers, toes
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Divisions: Divisions > Division of Human and Social Sciences > School of Psychology
Depositing User: Luigi Tame
Date Deposited: 19 Aug 2019 13:33 UTC
Last Modified: 10 Mar 2021 00:00 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/75871 (The current URI for this page, for reference purposes)
Tamè, Luigi: https://orcid.org/0000-0002-9172-2281
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