Purdue Pegboard Test performance (mean ± standard deviation) in the two groups of subjects at each study time point.

*Number of pegs placed in 30 sec.Group A = training with repetitive, transitive, object-related and goal-directed motor sequences of the right hand; group B = training with intransitive non purposeful motor actions of the right hand.Time 0 = baseline evaluation (on the day of the beginning of the motor training), time 1 = at the end of the motor training (two weeks), time 2 = 3 months after cessation of motor training.See text for further details.