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Prospective strategies underlie the control of interceptive actions.

Abstract : The purpose of this study was to test whether a constant bearing angle strategy could account for the displacement regulations produced by a moving observer when attempting to intercept a ball following a curvilinear path. The participants were asked to walk through a virtual environment and to change, if (deemed) necessary, their walking speed so as to intercept a moving ball that followed either a rectilinear or a curvilinear path. The results showed that ball path curvature did indeed influence the participants' displacement kinematics in a way that was predicted by adherence to a constant bearing angle strategy mode of control. Velocity modifications were found to be proportional to the magnitude of target curvature with opposing curvatures giving rise to mirror displacement velocity changes. The role of prospective strategies in the control of interceptive action is discussed.
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Julien Bastin, Cathy Craig, Gilles Montagne. Prospective strategies underlie the control of interceptive actions.. Human Movement Science, Elsevier, 2006, 25 (6), pp.718-32. ⟨10.1016/j.humov.2006.04.001⟩. ⟨inserm-00410949⟩

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