Directional control of rapid arm movements: the role of the kinetic visual feedback system.

摘要: Abstract Vision has long been considered as a single feedback system providing i nformation about the static and dynamic features of motor behaviors environm ent where they take place. However, recent models for oculomanual movements have included multi channeling visual cues (Goodale & Milner, 1992; Jeannerod, 1981; 1984; Paillard, 1980, 1 982). According to Paillard's model, kinetic system, mostly sensitive cue s, provides directional information movement in rapid distance - covering phase, highly position cues, positional signal errors. Th e present experiment gives kinematic evidence significant contribution vision d uring initial phase pointing when this is under control ki netic channel. Movements having requirements were more accurate (directional precis ion) portion trajectory was available. Times peak acceleration velocity all shorter their respective amplitudes generally higher available first third than it not. Further, v ision entire did not yield better precision then only. Overall, data support existence two corrective vi sual systems.Resume La longtemps ete consideree comme un canal unique d'information sur les caracteristiques statiques et dynamiques du mouvement l'environnement dans lequel le se produit. Toutefois, plusieurs modele s recents controle oculomanuel suggerent l'existence de canaux visuels multiples (Gooda 1982). Selon (a) systeme cinetique, principalement sensible aux informations dynamiques, fournit une info rmation directionnelle la transport; (b) stati que quant lui des erreurs position. presente experience cinematique vision, lors initiale mouveme nt, lorsque est sous visuel cinetique. Les mouvements ay ant exigences directionnelles sont plus (erreur directionnelle) l trajectoire visible. duree d'acceleration cour te pics vitesse eleves premier tiers De plus, complete n'amene p meilleure seule trajectoire. resultats supportent deux systemes feedbacks correctifs visuels.The role arm directed toward targets central issue control. Woodworth (1899) probably propo general model goal movements. Woodworth's n programmed responsible bringing hand into vicinity targ second kinesthesic regulation, stop pre cisely at target. Today, idea still many direct ed (e.g., Abrams, Meyer, Kornblum, 1989; Crossman Goodeve, 1963/1983; Sm ith, Wright, 1990).According framework, moving li mb early negligible terminal accuracy. Support t his suggestion comes mainly from research by Carlton (1981) Beaubaton Hay (1986). In th ese experiments, withdrawing during had no effect on accuracy, whereas occlusion approach target resulted greater spatial …