منابع مشابه
Evaluating Arm Movement Imitation
In this paper, we present a metric for assessing the quality of arm movement imitation. We develop a joint-rotational-angle-based segmentation and comparison algorithm that rates pairwise similarity of arm movement trajectories on a scale of 1− 10. We describe an empirical study designed to validate the algorithm we developed, by comparing it to human evaluation of imitation. The results provid...
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We examined the patterns of joint kinematics and torques in two kinds of sagittal plane reaching movements. One consisted of movements from a fixed initial position with the arm partially outstretched, to different targets, equidistant from the initial position and located according to the hours of a clock. The other series added movements from different initial positions and directions and >40...
متن کاملRole of cocontraction in arm movement accuracy.
Cocontraction (the simultaneous activation of antagonist muscles around a joint) provides the nervous system with a way to adapt the mechanical properties of the limb to changing task requirements-both in statics and during movement. However, relatively little is known about the conditions under which the motor system modulates limb impedance through cocontraction. The goal of this study was to...
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By simultaneously recording multi-neuronal activities through chronically implanted electrode arrays in motor and sensory cortices, arm movement trajectory, and muscle activities, we observed both spatial and temporal differences in neuronal activities during different phases of a reaching task. We also discovered that when developing an effective control strategy to overcome an externally appl...
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ژورنال
عنوان ژورنال: Energy Research Journal
سال: 2010
ISSN: 1949-0151
DOI: 10.3844/erjsp.2010.126.130