It is important to close the control loop by providing tactile feedback to prosthesis users. An increasing number of researchers attempt to improve grasping performance by providing various types of tactile feedbacks. In our study, we improve the performance by a virtual environment in which subjects acquire two key grasping-related properties, including object's stiffness, economically holding power (Feco) that could stop the objects slipping by a minimum force, using pressure feedback and slipping feedback generated by electrotactile stimulation during they are grasping objects. Results indicate that this method is feasible. The accurate discrimination of two levels' stiffness is 95.4%, and the accurate discrimination of four levels' economically holding power (Feco) is 78.3%. Furthermore, in order to compare the discriminating performance, we investigate the confused types in discriminating the stiffness and the economically holding power (Feco).
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.