Geometrical conditions for ballistic and visually controlled movements

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      <subfield code="a">The ballistic movement is defined as a rapid voluntary movement which is motor programmed and in which visual feedback for path correction is not possible. A discrete ballistic movement is of short movement duration with a triphasic pattern in the elctromyograph (EMG) for muscle activity and has an acceleration pattern which approximates a sinusoidal wave form. The aim of the present work was to fully explore the geometrical factors which determine whether a movement will be made ballistically or under visual control</subfield>
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      <subfield code="a">Hoffmann, Errol R.</subfield>
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      <subfield code="d">1988</subfield>
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      <subfield code="g">Vol. 31, nº 5, May 1988 ; p. 829-839</subfield>
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