More than skin-deep: Integration of skin-based and musculoskeletal reference frames in localization of touch.

ABSTRACT: The skin of the forearm is, in one sense, a flat 2-dimensional (2D) sheet, but in another sense approximately cylindrical, mirroring the 3-dimensional (3D) volumetric shape of the arm. The role of frames of reference based on the skin as a 2D sheet versus based on the musculoskeletal 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 localized within a skin-based reference frame. We investigated, however, if the perceived tactile locations were also affected by the rearrangement in underlying musculoskeletal structure, that is, displaced medi

SUBMITTER: Sadibolova R 

PROVIDER: S-EPMC6205026 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature