TY - GEN ID - cogprints853 UR - http://cogprints.org/853/ A1 - Smeets, Jeroen B.J A1 - Brenner, Eli Y1 - 1996/// N2 - Subjects were asked to pick up disks. The apparent size of the disks was manipulated by a visual illusion. Of the two aspects of the action which depend on the objects size, only one was affected by the illusion. We conclude that different aspects of an action are controlled independently, instead of being co-ordinated on the basis of one perceptual variable. PB - Delftse Universitaire Pers, Delft KW - human arm hand movements grasping lifting size weight illusion fingers force acceleration TI - Multiple specification of an object's size for picking it up. SP - 147 AV - public EP - 149 ER -