A short and sweet study just the weekend - The link below provides a nice demonstration of processes involved with motor learning (learning the tango).
Lessons and imagery training in the tango caused a shift away from just "seeing" to an energetic activation of bilateral motor imagery regions. This is a good example of how real learning is not just memory of what's been seen or heard. It changes existing connections and now is associated with internal representations and imagery.
At the end of their tango lessons, these students could spatially represent it and dance in their brains.
Tango Lessons, Motor Imagery, and fMRI