Exploration of joint redundancy but not task space variability facilitates supervised motor learning

• Published in: Proceedings of the National Academy of Sciences - PNAS Vol. 113; no. 50; pp. 14414 - 14419
• Main Authors: Singh, Puneet, Jana, Sumitash, Ghosal, Ashitava, Murthy, Aditya
• Format: Journal Article
• Language: English
• Published: United States National Academy of Sciences 13.12.2016
• Subjects: Adult; Aged; Arm; Biological Sciences; Biomechanical Phenomena; Enteral Nutrition; Female; Functional Laterality - physiology; Humans; Joints - physiology; Kinematics; Learning - physiology; Male; Middle Aged; Models, Biological; Motor ability; Motor Skills - physiology; Muscles; Muscular system; Noise control; Psychomotor Performance - physiology; Task Performance and Analysis; Young Adult; reaching; motor control; supervised learning; minimum-intervention principle; motor noise

The number of joints and muscles in a human arm is more than what is required for reaching to a desired point in 3D space. Although previous studies have emphasized how such redundancy and the associated flexibility may play an important role in path planning, control of noise, and optimization of m...