Studies like this are why I lost my respect for the field, and left it a long time ago. I have not since regained my respect for psychology as a general field. Things like this are published all too frequently.
It is demonstrated that playing piano has positive effects on neural development, a task largely analogous to typing. Learning / honing any novel skill will have that effect. If you are pushing your the limits of your knowledge or skill-set and are improving, then your brain has to be adapting to things.
If one group is simply typing characters, one at a time, using one finger, of course nothing is going on in the brain. What aspect of the brain at that point is begin challenged? If anything I'd expect this task to result in a reduction of connectivity.
It is demonstrated that playing piano has positive effects on neural development, a task largely analogous to typing. Learning / honing any novel skill will have that effect. If you are pushing your the limits of your knowledge or skill-set and are improving, then your brain has to be adapting to things.
If one group is simply typing characters, one at a time, using one finger, of course nothing is going on in the brain. What aspect of the brain at that point is begin challenged? If anything I'd expect this task to result in a reduction of connectivity.