The influence of handedness on profile and line drawing directionality in children,young, and older normal adults |
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Authors: | De Agostini Maria Chokron Sylvie |
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Affiliation: | INSERM U 472, Paris, France. deagostini@vjf.inserm.fr |
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Abstract: | One hundred twenty-two normal subjects--children, young and older adults (77 right-handers and 45 left-handers)--performed two drawing tasks in order to study their directionality trends. The first task consisted of drawing the profile of a face and in the second task subjects had to link two points in order to draw a line. The analysis of the drawing directionality revealed a significant effect of the age when right-handers drew profiles whereas this effect reached significance in left-handed subjects only when drawing lines. Left- and right-handers' performances across the two tasks were found to significantly differ. Results are discussed in terms of hemispheric and environmental factors. |
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