What is the difference between learning a musical instrument and a child who has not learned a musical instrument?

Harvard Medical School and the Boston University Institute of Education have jointly conducted a study. They found that children who have been learning and playing instruments for more than five years have a higher level of cognition than those who have never been exposed to any instrument. The obvious difference is that they are generally higher in terms of auditory response, finger dexterity, vocabulary and non-verbal reasoning. It can be said that children who have been in contact with instruments for more than five years are often more flexible and critical in their minds and thinking.