Fine motor skills for robotic hands Neuroscientists at the German Primate Center can predict grip movements of the hand by measuring brain cell activity. Tying shoelaces, stirring coffee, writing letters, playing the piano. From the usual daily routine to demanding activities: Our hands are used more frequently than any other body part. Through our highly developed fine motor skills, we are able to perform grasping movements with variable precision and power distribution. This ability is a fundamental characteristic of the hand of primates. Until now, it was unclear how hand movements are planned in the brain. The most recent research project of Stefan Schaffelhofer, Andres Agudelo-Toro and Hansjörg Scherberger from the German Primate Center has shown how different grasping movements in the brain are controlled in rhesus monkeys. Using electrophysiological measurements in those areas of the brain that are responsible for the planning and execution of hand movements, the scientists could predict a variety of hand positions through the analysis of exact neural signals. In initial experiments, the application of decrypted grip types was transferred to a robot hand.
Posted on: Fri, 23 Jan 2015 22:27:48 +0000
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