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Recent work has shown that preplanned motor programs are released early from subcortical areas by the using a startling acoustic stimulus (SAS). Our question is whether this response might also contain a recently learned internal model, which draws on experience to predict and compensate for expected perturbations in a feedforward manner. Studies of adaptation to robotic forces have shown some evidence...
A summary is presented of the tracking and surface electromyographic (EMG) results obtained using a robotic workstation that was designed and built for use by stroke participants in order to improve voluntary control of their impaired arm. The intervention consisted of eighteen sessions in which five chronic stroke participants performed a range of tracking tasks using their remaining voluntary effort,...
The aim of this paper is to investigate the human arm's sensory-motor control mechanism in the trajectory planning of arm movement in the transverse plane. According to the equilibrium point hypothesis, the equilibrium configuration of joint angles and muscle torques are defined as a single variable called the equilibrium point (EP). Further, control systems reset the EP by shifting the invariant...
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