Imitation of an action course in preschool and school-aged children: a hierarchical reconstruction.

Imitation is commonly considered as a hierarchical process. The current study explored the reproduction of a multi-task course in deferred imitation. Eighty-five children between 3.

Imitation of a bimanual task in preschool- and school-age children: a hierarchical construction.

The present study examined the development of bimanual interaction during the imitation of a live demonstration. To this end, children of five different age groups observed an adult model performing in an object manipulation task consisting to open a box with one hand, taking out an object with the other hand, and closing the box again, before they were asked to imitate this motor task under different imitation conditions. The children's responses were videotaped, coded in dichotomous data, and then transformed in percentage scores.

Influence of vision and motor imagery styles on equilibrium control during whole-body rotations.

To investigate the influence of vision and motor imagery styles on equilibrium control, displacements of the supporting foot during spontaneous whole-body rotations ("pirouette") by expert female ballet dancers were analyzed using three-dimensional kinematics. Four turn types were defined according to direction (clockwise, CW vs. counterclockwise, CCW) and supporting foot (SF, left vs.

Preschool-aged children's jumps: imitation performances.

Imitative behavior underlaid by perception and action links during children's development in complex locomotor skills has been the object of relatively few studies. In order to explore children's motor coordination modes, 130 children divided into five age groups from 3.5 to 7.

Right hemisphere in visual regulation of complex equilibrium: the female ballet dancers' experience.

Objective: To analyse the interaction between visual restrictions and somatosensory disturbances on unipedal control equilibrium with or without classical dance training.

Methods: The support (computerized force platform) was disturbed during roll and pitch sways in association with restriction of the left and right visual hemifields (selective nasal and temporal hemiretina goggles). The effect of training by comparing spontaneous dynamic equilibrium (spectral analysis of body sways) between 14 healthy female right-sided untrained and expert dancers was assessed.