When we train the reaching for and grasping of objects, we also train our brain. In other words, this action brings about changes in the connections of a certain neuronal population in the red nucleus, a region of the midbrain. Researchers have discovered this group of nerve cells in the red nucleus. They have also shown how fine motor tasks promote plastic reorganization of this brain region.
This full article appears on <a href="https://www.sciencedaily.com/releases/2019/06/190612093907.htm">Science Daily</a>