Figure 1. Study design .
A, finger‐to‐thumb opposition sequences (FOSes). The two sequences were matched for number of movements per digit and arranged in the reversed order in relation to each other. B, overall study design. L, left hand; R, right hand. Day 1: a pre‐training performance test (Pre‐T), a structured training session (Training) and an immediate post‐training performance test (Post‐T) using the left hand (L). Day 2, performance tests of the trained sequence and the untrained sequence (overnight: T‐FOS and U‐FOS, respectively) using the left, trained and the right, untrained hand (L and R, respectively). Only participants of the fMRI group took part in the scanning session (fMRI), immediately preceding overnight performance tests. The control (non‐fMRI) group was tested to evaluate the effect of the additional experience afforded during the fMRI session on subsequent performance.