Peter is a concert pianist who practices a great deal, which will have had an effect on his brain. which area of his brain is likely to be larger than it is in a person who does not play the piano?

Francine, a college freshman, has agreed to participate in a psychology research study. before she begins her participation, she reads a statement written by the researcher explaining the purpose of the research and the potential risks of participation. it also explains that francine is free to withdraw from the research at any time. in providing francine with this statement, the researcher has followed the ethical guidelines of for participants.