Visual Feedback of Object Motion Direction Influences the Timing of Grip Force Modulation During Object Manipulation.

ABSTRACT: During manipulation, object slipping is prevented by modulating the grip force (GF) in synchrony with motion-related inertial forces, i.e., load force (LF). However, due to conduction delays of the sensory system, GF must be modulated in advance based on predictions of LF changes. It has been proposed that such predictive force control relies on internal representations, i.e., internal models, of the relation between the dynamic of the environment and movement kinematics. Somatosensory and visual feedback plays a primary role in building these internal representations. For instance, it has been shown that manipulation-dependent somatosensory signals contribute to building internal representations of gravity in normal and altered gravitational contexts. Furthermore, delaying the timing of v

SUBMITTER: Toma S 

PROVIDER: S-EPMC7272672 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature