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Music ability and the willingness to practice is in the genes, says new research

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Mom or dad may have driven you to cello rehearsal all those years, but you can also thank your genes for pushing you to practice, according to new research, "The genetics of music accomplishment: Evidence for gene–environment correlation and interaction," appearing online in the June 2014 issue of the journal Psychonomic Bulletin & Review. A study led by Zach Hambrick, Michigan State University professor of psychology, suggests genes play a significant role in developing musical expertise. Hambrick's co-author is Elliot Tucker-Drob from the University of Texas.

Genetics and environment work together to help people become accomplished musicians, finds the study of 850 sets of twins. It's another arrow in the quiver of the argument that both nature and nurture play a role in developing expertise.

"The nature vs. nurture debate has raged since the beginning of psychology," said Zach Hambrick, MSU professor of psychology, according to the June 26, 2014 news release, Rosin up that bow, maestro. And thank your genes. "This makes it very clear that it's both. Not only in the sense that both nature and nurture contribute, but that they interact with each other."

The study breaks new ground in ascertaining the specific roles of genes. Essentially, it found the following results:

  • Accomplished musicians practiced much more than those who weren't accomplished.
  • That propensity to practice was fueled partly by genetics, which the researchers were able to establish by comparing identical twins, who share 100 percent of their genes, with fraternal twins, who share 50 percent of their genes. The finding suggests genetics influence the sorts of activities we pursue.
  • When it came to music accomplishment, genes had a bigger influence on those who practiced than those who didn't.

Writers such as Malcolm Gladwell argue that experts are almost entirely "made" and that a lack of innate ability can be overcome with enough training

The way to master that cello, in other words, is to practice for at least 10,000 hours, as past research has suggested. But the new study challenges that theory by showing genes had a major contribution on the musicians who practiced and became successful. For those who didn't practice, there was essentially no genetic contribution.

"Contrary to the view that genetic effects go away as you practice more and more," Hambrick said, according to the news release, "we found that genes become more important in accounting for differences across people in music performance as they practice."

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