There is no information whether it was written or oral, what kinds of questions were there and so on.
Therefore, it is hard to believe that the experiment was well - planned and carefully analyzed by the researchers. The article seems poorly substantiated and the arguments appear badly proved. It is easy to question and controvert them. However, the argument of this article could be better presented and easily accepted by the large number of people if the author would explain his/ her point of view more broadly. Other way there is not enough information to form a firm ground for the statement represented by the group of U.S. researches that "exercising to music boosts brainpower".
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