Our aim is to focus on segmental and joint kinematics during a Test and a Transfer Task consisting of reaching movements. Test Task will be recorded. The Test target will be placed in line with the patient's sternum at a distance just beyond the subject's arm length. The Test Task is similar to movements made to one of the practiced targets. To assess motor learning, the investigators will determine if elements learned in one task transfer to other similar tasks. Thus, the investigators will also assess movements made in a Transfer Task, to a target placed in front of the ipsilateral shoulder 5 centimeters (cm) higher than the topmost row of trained targets. The Transfer Task is therefore a new movement, not practiced during the training. Rigid body segmental kinematics will be recorded from sets of 4 passive reflective markers (0.5 cm diameter spheres) attached to the trunk, upper arm and forearm segments. This will enable the computation of three translational and three rotational degrees of freedom per segment. Joint kinematics will be collected from markers fixed on the sternum, acromion, elbow and wrist via exo-skeletal frames. Marker motion will be recorded with a calibrated 3 camera opto-electronic motion-capture system (ProReflex MCU-240, Qualisys) on suitable computer software (Qualisys, Göteborg, Swe). Data collection (100 Hertz, 2-5 seconds) will be triggered by movement of the hand from a central position by release of a mechanical switch. The accuracy of the measurements of each marker is within an error of <0.2 cm.