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Brain. 2000 Feb;123 ( Pt 2):380-93. The coordination of bimanual prehension movements in a centrally deafferented patient. Jackson GM(1), Jackson SR, Husain M, Harvey M, Kramer T, Dow L. Author information: (1)Centre for Perception, Attention and Motor Sciences, School of Psychology, University of Wales, Bangor,
28 May 2014 The classic understanding of prehension is that of coordinated reaching and grasping. An alternative view is that the grasping in prehension emerges from independently controlled individual digit movements (the double-pointing model). The current study tested this latter model in bimanual prehension:
The purpose of the present study was to investigate the coordination of the two effectors when one or both targets were displaced in a bimanual prehension task. Sixteen right-handed volunteers were asked to reach 20 cm to grasp and lift two cubic objects with the right and left hands. Upon initiation of the reach: (1) both
Two experiments were designed to investigate the temporal and spatial couplings of the transport and grasp components for bimanual movements to both congruent and incongruent targets. We studied conditions where task requirements were largely different for the two hands. Ten participants performed Experiment 1 and
Abstract What determines coordination patterns when both hands reach to grasp separate objects at the same time? It is known that synchronous timing is preferred as the most stable mode of bimanual coordination. Nonetheless, normal unimanual prehension behaviour predicts asynchrony when the two hands reach
To examine the mechanisms of functional bimanual synchronization in goal-directed movements, we studied the movement kinematics of motorically unimpaired subjects while they performed repetitive prehension movements (either unimanually or bimanually) to small food items. Compared to unimanual conditions,
20 Aug 2007 Acknowledging the vital role of visual information in successfully executing any prehensile movements, the present study aimed to clarify how well existing bimanual coordination models (Kelso et al, 1979; Marteniuk & Mackenzie, 1980) can account for bimanual prehension movements targeting a single
One form of naturalistic hand action where proprioception might be expected to be critical is bimanual movements in which it is required that separate effectors be synchronized (Haggard and Wing, 1991). In this paper we investigate the role of proprioception in the coordination of bimanual prehension movements by
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