Sadibolova, Renata, Tamè, Luigi, Longo, Matthew R. (2018) More than skin-deep: Integration of skin-based and musculoskeletal reference frames in localization of touch. Journal of Experimental Psychology: Human Perception and Performance, 44 (11). pp. 1672-1682. ISSN 0096-1523. (doi:10.1037/xhp0000562) (KAR id:71617)
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Official URL https://doi.org/10.1037/xhp0000562 |
Abstract
The skin of the forearm is, in one sense, a flat 2D sheet, but in another sense approximately cylindrical, mirroring the 3D volumetric shape of the arm. The role of frames of reference based on the skin as a 2D sheet versus based on the musculo-skeletal structure of the arm remains unclear. When we rotate the forearm from a pronated to a supinated posture, the skin on its surface is displaced. Thus, a marked location will slide with the skin across the underlying flesh, and the touch perceived at this location should follow this displacement if it is localised within a skin-based reference frame. We investigated, however, if the perceived tactile locations were also affected by the rearrangement in underlying musculo skeletal structure, i.e. displaced medially and laterally on a pronated and supinated forearm, respectively. Participants pointed to perceived touches (Experiment 1), or marked them on a three-dimensional size-matched forearm on a computer screen (Experiment 2). The perceived
grid was perceptually stretched at medial-lateral axis, and it was displaced distally, which suggest the influence of skin-based factors. Our study extends the tactile localisation literature focused on the skin-based reference frame and on the effects of spatial positions of
body parts by implicating the musculo-skeletal factors in localisation of touch on the body.
Item Type: | Article |
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DOI/Identification number: | 10.1037/xhp0000562 |
Uncontrolled keywords: | Tactile localisation, forearm, tactile spatial reference frame, body representation |
Subjects: | B Philosophy. Psychology. Religion > BF Psychology |
Divisions: | Divisions > Division of Human and Social Sciences > School of Psychology |
Depositing User: | Luigi Tame |
Date Deposited: | 12 Jan 2019 17:36 UTC |
Last Modified: | 16 Feb 2021 14:01 UTC |
Resource URI: | https://kar.kent.ac.uk/id/eprint/71617 (The current URI for this page, for reference purposes) |
Tamè, Luigi: | ![]() |
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