首页|Medical University of Vienna Reports Findings in Robotics (Excitation of natural spinal reflex loops in the sensory-motor control of hand prostheses)
Medical University of Vienna Reports Findings in Robotics (Excitation of natural spinal reflex loops in the sensory-motor control of hand prostheses)
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By a News Reporter-Staff News Editor at Robotics & Machine Learning Daily News Daily News – New research on Robotics is the subjec t of a report. According to news reporting from Vienna, Austria, by NewsRx journ alists, research stated, “Sensory feedback for prosthesis control is typically b ased on encoding sensory information in specific types of sensory stimuli that t he users interpret to adjust the control of the prosthesis. However, in physiolo gical conditions, the afferent feedback received from peripheral nerves is not o nly processed consciously but also modulates spinal reflex loops that contribute to the neural information driving muscles.” The news correspondents obtained a quote from the research from the Medical Univ ersity of Vienna, “Spinal pathways are relevant for sensory-motor integration, b ut they are commonly not leveraged for prosthesis control. We propose an approac h to improve sensory-motor integration for prosthesis control based on modulatin g the excitability of spinal circuits through the vibration of tendons in a clos ed loop with muscle activity. We measured muscle signals in healthy participants and amputees during different motor tasks, and we closed the loop by applying v ibration on tendons connected to the muscles, which modulated the excitability o f motor neurons. The control signals to the prosthesis were thus the combination of voluntary control and additional spinal reflex inputs induced by tendon vibr ation. Results showed that closed-loop tendon vibration was able to modulate the neural drive to the muscles. When closed-loop tendon vibration was used, partic ipants could achieve similar or better control performance in interfaces using m uscle activation than without stimulation. Stimulation could even improve prosth etic grasping in amputees.”
ViennaAustriaEuropeHealth and Medi cineMedical DevicesProstheticsRobotics
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