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  • Influence
Postural Hand Synergies for Tool Use
TLDR
The results suggest that the control of hand posture involves a few postural synergies, regulating the general shape of the hand, coupled with a finer control mechanism providing for small, subtle adjustments.
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Postural readjustments induced by linear motion of visual scenes
TLDR
From the dynamic relationships between the velocity of the moving visual scene and the amplitude of sway, it was concluded that the postural readjustment is proportional to a low pass filtering of the logarithm of the velocity.
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Early stages in a sensorimotor transformation
TLDR
A model for several early stages of the sensorimotor transformations involved in targeted arm movement is presented, suggesting that the combination of these representations of initial and final arm orientations could give rise to the representation of movement direction recorded in the motor cortex by Georgopoulos and his colleagues.
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Invariant characteristics of a pointing movement in man
Simple arm movements involving forward projection of the hand toward a target were studied by measuring simultaneous wrist position in three- dimensional space and changes in elbow angle. An attempt…
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Patterns of Hand Motion during Grasping and the Influence of Sensory Guidance
TLDR
A principal components analysis was developed to provide a concise description of the spatiotemporal patterns underlying the motion of temporal synergies of hand movement and the influence of sensory cues on the control of these synergies.
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Quantitative evaluation of the electromyographic responses to multidirectional load perturbations of the human arm.
TLDR
The data are consistent with the hypothesis that the two components have different anatomical substrates and that they have different functional implications for the stabilization of the limb in the face of perturbations.
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The role of vision in the control of posture during linear motion.
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Flexibility and Repeatability of Finger Movements During Typing: Analysis of Multiple Degrees of Freedom
TLDR
The kinematics of the hand and fingers were studied during various keystrokes in typing and a considerable amount of consistency each time a given keystroke was executed by a subject, and this repeatability may imply a reduction in the number of degrees offreedom independently controlled by the nervous system.
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Modification of trajectory of a pointing movement in response to a change in target location.
TLDR
It is concluded that rapid corrections of a movement involve the production of stereotyped patterns of activity in shoulder and elbow muscles.
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Effect of target size on spatial and temporal characteristics of a pointing movement in man
  • J. Soechting
  • Psychology, Biology
    Experimental Brain Research
  • 2004
TLDR
It was found that movement time increased, even at slow speeds, when target size decreased, and the data support the hypothesis that motion at the shoulder and elbow joints is determined primarily by target position whilemotion at the wrist joint is related principally to the angular orientation of the target in space.
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