Etude ontogénétique de la coordination visuo-manuelle.

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Abstract
The development of eye-hand coordination is being considered, under the light of an aiming model, as an aspect of capture behavior involving localization, approach and adjustment components. Diverse parameters of the model, such as reaction time, movement time and endpoint spatial error, are studied in relation to the operations with which they are primarily associated. Studies on adult behavior are presented which concern: visual capture and oculocephalic directional orientation activities, ballistic programming activities, guiding and end-point adjustment activities. The question of respective development and interrelationships of these activities is treated, and ontogenetic studies based on the model and realized in 5-11 yr olds; primarily involving either directional programming or adjustment tasks are reported, emphasizing the relative evolution of proactive and retroactive mechanisms during the given period.

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