Linear Integration of Tactile and Non-tactile Inputs Mediates Estimation of Fingertip Relative Position.

ABSTRACT: While skin, joints and muscles receptors alone provide lower level information about individual variables (e.g., exerted limb force and limb displacement), the distance between limb endpoints (i.e., relative position) has to be extracted from high level integration of somatosensory and motor signals. In particular, estimation of fingertip relative position likely involves more complex sensorimotor transformations than those underlying hand or arm position sense: the brain has to estimate where each fingertip is relative to the hand and where fingertips are relative to each other. It has been demonstrated that during grasping, feedback of digit position drives rapid adjustments of fingers force control. However, it has been shown that estimation of fingertips' relative position can be biase

SUBMITTER: Toma S 

PROVIDER: S-EPMC6378372 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature