Thèse soutenue

Les interactions visuo-posturales néonatales, fonctions et fonctionnements

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Auteur / Autrice : Olivier Gapenne
Direction : François Jouen
Type : Thèse de doctorat
Discipline(s) : Psychologie
Date : Soutenance en 1994
Etablissement(s) : Paris 5
Partenaire(s) de recherche : Laboratoire : Unité de psychophysiologie cognitive (Paris)

Mots clés

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Résumé

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This experimental work, dedicated to the study of neonatal visuo-postural interactions, has allowed us to confirm the existence of these interactions as soon as the very first days of life, to evidence that this coupling between visual and postural systems can be functionally modulated at birth, and to show that its functional properties are preserved during development. The presence of functional properties connecting these two systems at birth and their maintenance during development lead us to draw the hypothesis that they emerge from elementary biomechanical and neuronal functionings that remain unchanged throughout ontogeny. Moreover, we suggest that the developmental function of this coupling consists in favouring the emergence of new postural competences through a calibration process of the mechanical receptors. We more specifically support the idea that the functional invariants of the visuo-postural coupling we identified in this work, are systematically re-used or re-activated during the reorganization phases of postural regulation induced by the stature and weight transformations during development.