A new study could be a game changer for users of prosthetic hands who have long awaited advances in dexterity. Researchers examined if people could precisely control the grip forces applied to two different objects grasped simultaneously with a dexterous artificial hand. They designed a multichannel wearable soft robotic armband to convey artificial sensations of touch to the robotic hand users. Subjects were able to successfully grasp and transport two objects simultaneously with the dexterous artificial hand without breaking or dropping them, even when their vision of both objects was obstructed. The study is the first to show the feasibility of this complex simultaneous control task while integrating multiple channels of haptic/touch sensation feedback noninvasively.
