Effects of up-down visual inversion on motor skills.
The movement of a hand or fingers and locomotion of the body by a subject wearing prisms which inverted his visual world were investigated. A subject wore frame-spectacles (without prisms) for the first two days and then wore up-down inverting spectacles (with prisms) for the next four days, followed by wearing the former frame-spectacles again for one day. Measurements were made of skill on star-drawing, pegboard tests, and on zigzag-walking and walking up and down stairs. There were no differences on the five measures during acquisition for the four tasks, which suggests smooth progress of prism-adaptation by this man.
Nakajima
Y
Y
Graduate School of Human Sciences, Osaka University, Japan.
D000221:Adaptation, Ocular; D005139:Eyeglasses; D006112:Gravitation; D006225:Hand / Q000502:physiology; D006801:Humans; D008124:Locomotion; D009949:Orientation; D010469:Perceptual Distortion; D011597:Psychomotor Performance; D014794:Visual Fields; D014796:Visual Perception