title: Motor control strategies in a continuous task space.
abstract: Previous studies on sequential effects of human grasping behavior were restricted to binary grasp type selection. We asked whether two established motor control strategies, the end-state comfort effect and the hysteresis effect, would hold for sequential motor tasks with continuous solutions. To this end, participants were tested in a sequential (predictable) and a randomized (nonpredictable) perceptual-motor task, which offered a continuous range of posture solutions for each movement trial. Both the end-state comfort effect and the hysteresis effect were reproduced under predictable, continuous conditions, but only the end-state comfort effect was present under nonpredictable conditions. Experimental results further revealed a work range restriction effect, which was reproduced for the dominant and the nondominant hand.
authors: Faculty of Psychology and Sport Sciences, Bielefeld University, Bielefeld, Germany.
authors: Christoph
authors: C
authors: Schütz
authors: Matthias
authors: M
authors: Weigelt
authors: Dennis
authors: D
authors: Odekerken
authors: Timo
authors: T
authors: Klein-Soetebier
authors: Thomas
authors: T
authors: Schack
mesh_terms: D000328:Adult; D001696:Biomechanical Phenomena; D005260:Female; D018737:Hand Strength; D006801:Humans; D008297:Male; D009949:Orientation; D011187:Posture; D011597:Psychomotor Performance; D016059:Range of Motion, Articular; D012691:Serial Learning; D013484:Supination; D055815:Young Adult