منابع مشابه
Redundancy, Self-Motion, and Motor Control
Outside the laboratory, human movement typically involves redundant effector systems. How the nervous system selects among the task-equivalent solutions may provide insights into how movement is controlled. We propose a process model of movement generation that accounts for the kinematics of goal-directed pointing movements performed with a redundant arm. The key element is a neuronal dynamics ...
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The nervous system controls the behavior of complex kinematically redundant biomechanical systems. How it computes appropriate commands to generate movements is unknown. Here we propose a model based on the assumption that the nervous system: 1) processes static (e.g., gravitational) and dynamic (e.g., inertial) forces separately; 2) calculates appropriate dynamic controls to master the dynamic...
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A task must be specified in teTTn$ of both the position (lnd stiffness of the-limb before muscle forces and activations are unambiguously assigned. To illustrate this, we begin with the problem of how to control an inverted pendulum with a pair of muscles. An active state model of the frog's gastrocnemius is used to derive three criteria for the stiffness characteristics of the system during po...
متن کاملThe vestibular system: multimodal integration and encoding of self-motion for motor control.
Understanding how sensory pathways transmit information under natural conditions remains a major goal in neuroscience. The vestibular system plays a vital role in everyday life, contributing to a wide range of functions from reflexes to the highest levels of voluntary behavior. Recent experiments establishing that vestibular (self-motion) processing is inherently multimodal also provide insight...
متن کاملMrac Based Dc Servo Motor Motion Control
Adaptive Control strategies helps to get desirable output for system with partial unknown dynamics or systems having unknown and unmodeled load variation. DC servo motors are useful to track rapid speed trajectory for various applications, particularly with need of high starting torque and low inertia. Model Reference Adaptive Control (MRAC) parameter data of results with Lyapunov stability MRA...
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ژورنال
عنوان ژورنال: Neural Computation
سال: 2009
ISSN: 0899-7667,1530-888X
DOI: 10.1162/neco.2008.01-08-698