[Experimental design for the study of adaptive properties of the visuo-manual system in subjects newly provided with optic corrections].
Optical corrections may produce, during the first days of wearing, behavioral and psychophysiological changes such as a sensation of illusory motion of the visual world upon head rotation and errors in the manipulation of objects under visual guidance. After a few days, adaptation takes place, leading to the recovery of adequate sensory-motor performance. We describe an experimental system designed to study the adaptation of the visuo-manual system after exposure to optical corrections. The systems consists of a data tablet/digitizer and a micro computer. The quantification of the adaptation is based on the comparison of the average performance of a subject in a visuo-manual pointing task before and after a practice period consisting of pointing at visual targets through the optical corrections. Preliminary results from tests executed with normal subjects show that the system is perfectly suitable to determine the ability of an individual to adapt to optical corrections. This system can be used to systematically study the adaptation phenomena resulting from the alteration of the normal visuo-manual relationship by optical systems.
D000221:Adaptation, Ocular; D006225:Hand; D006801:Humans; D007909:Lenses; D008838:Microcomputers; D011597:Psychomotor Performance; D012107:Research Design; D014785:Vision, Ocular
Ensemble expérimental pour l'étude des propriétés adaptatives du système visuo-manuel chez le sujet nouvellement équipé de corrections optiques.