title: Motor adaptation during redundant tasks with the wrist.
abstract: This study analyzes motor adaptation during a redundant tasks with the wrist. The goal is threefold: (i) understanding if motor adaptation also occurs when CNS is involved in the solution of the redundancy problem; (ii) addressing whether motor strategies used to solve redundancy (i.e Donders' law) are disrupted or not during adaptation; (iii) verifying if motor strategies remain the same during adaptation and washout or they themselves adapt. First of all, our data confirm that CNS adapts its movements to the perturbation also when it is committed in the execution of a redundant task. Secondly, we showed that motor strategies used to solve redundancy (i.e Donders' law) are not disrupted during adaptation, since absolute values of thickness during the whole protocol remain in the range of physiological values. Lastly, analysis of the curvature of Donders' surfaces suggests that motor strategies, such as Donders' law, remain invariant during motor adaptation in redundant tasks.
authors.affiliation: Laboratory of Biomedical Robotics and Biomicrosystems, Università Campus Bio-Medico di Roma, 00218 Rome, Italy. d.formica@unicampus.it
authors.forename: Domenico
authors.initials: D
authors.lastname: Formica
authors.forename: Domenico
authors.initials: D
authors.lastname: Campolo
authors.forename: Fabrizio
authors.initials: F
authors.lastname: Taffoni
authors.forename: Flavio
authors.initials: F
authors.lastname: Keller
authors.forename: Eugenio
authors.initials: E
authors.lastname: Guglielmelli
mesh_terms: D000222:Adaptation, Physiological; D000328:Adult; D002490:Central Nervous System / Q000502:physiology; D005260:Female; D006801:Humans; D008297:Male; D013647:Task Performance and Analysis; D014953:Wrist / Q000502:physiology*