Cognitive and Postural Activities of Prematurely Born Children

"1. The children, equipped with a head-mounted display (HMD), will indicate as quickly as possible the direction of a fish that can be surrounded by congruent or not flankers (Inhibition) and/or preceded by signal (Alert)~2. The children, equipped with a HMD and a joystick, will vertically turn a randomly inclined stick~3. The children will stand on a force plate watching a cartoon, gazing a fixation cross or eyes closed~4. The children, equipped with an augmented reality headset, will perform 2 levels of difficulty of 3 attention tasks standing on a force plate:~ * They will click as quickly as possible when they see a frog among successively appearing animals (vigilance task)~ * They will give the name of an animal appearing at one of the windows displayed (visual search task)~ * They will count the number of yellow lions oriented to the right among several animals of different color and direction (inhibition task)~5. Growth trajectory will be retrieved from health booklet"