Title : Long - latency responses during reaching account for the mechanical 1 interaction between the shoulder and elbow joints 2 3 Abbreviated Title : feedback
نویسندگان
چکیده
Authors and addresses: 5 Isaac Kurtzer, J. Andrew Pruszynski, and Stephen H. Scott 6 Centre for Neuroscience Studies, Department of Anatomy & 7 Cell Biology, and Department of Medicine 8 Queen's University, Kingston, ON Canada K7L 3N6 9 10 Corresponding author: 11 Isaac Kurtzer, Ph.D. 12 Centre for Neuroscience Studies, Botterell Hall Rm 232 13 Queen's University, Kingston, ON Canada K7L 3N6 14 Tel: 613 533 6000 (74590); Fax: 613 533 6840 15 Email: [email protected] 16 Figures: 6 17
منابع مشابه
Long-latency responses during reaching account for the mechanical interaction between the shoulder and elbow joints.
Although considerable research indicates that reaching movements rely on knowledge of the arm's mechanical properties and environment to anticipate and counter predictable loads, far less research has examined whether this degree of sophistication is present for on-line corrections during reaching. Here we examine the R2/3 response to mechanical perturbations (45-100 ms, also called the long-la...
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A hallmark of voluntary motor control is the ability to adjust motor patterns for novel mechanical or visuomotor contexts. Recent work has also highlighted the importance of feedback for voluntary control, leading to the hypothesis that feedback responses should adapt when we learn new motor skills. We tested this prediction with a novel paradigm requiring that human subjects adapt to a viscous...
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A key feature of successful motor control is the ability to counter unexpected perturbations. This process is complicated in multijoint systems, like the human arm, by the fact that loads applied at one joint will create motion at other joints [1-3]. Here, we test whether our most rapid corrections, i.e., reflexes, address this complexity through an internal model of the limb's mechanical prope...
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Damage to the cerebellum can cause significant problems in the coordination of voluntary arm movements. One prominent idea is that incoordination stems from an inability to predictively account for the complex mechanical interactions between the arm's several joints. Motivated by growing evidence that corrective feedback control shares important capabilities and neural substrates with feedforwa...
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Many studies have demonstrated that muscle activity 50-100 ms after a mechanical perturbation (i.e., the long-latency stretch response) can be modulated in a manner that reflects voluntary motor control. These previous studies typically assessed modulation of the long-latency stretch response from individual muscles rather than how this response is concurrently modulated across multiple muscles...
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