If you divided people into athletes and pianists, you would find dimorphic brain differences too, because 1. We learn 2. Learning is physical, because it occu

If you divided people into athletes and pianists, you would find dimorphic brain differences too, because 1. We learn 2. Learning is physical, because it occurs in the brain 3. Over time, learning is reflected in detectable physical differences in the brain The reason that studies like this one are looking at children is that they are trying to minimize the role of established patterns of use in creating brain differences. In other words, differences arising from culture.