科学美国人60秒 SSS 2014-03-12（在线收听）

 A versus B, both great.But your brain maybe processing the musical information differently for each. That's according to a research in the journal Neuron Image. For the study, volunteers had their brain scanned by functional MRI. And they listened 2 musical medleys containing songs from different genres. The scans identified brain regions that became active during listening. One  medley included 4 instrumental pieces, and the other consists of songs from beside of Abbey Road. Computers algorithm were used to identify specific aspects of the music, which the researchers were able to match with specific activated brain areas. The researchers found that vocal and  instrumental music get treated differently. Well, both hemispheres of the brain deals with musical  features, the presence of lyrics, shifts the  processing of musical features to the left auditory cortex. These results suggests that the brain's hemispheres are specialized for different kinds of song processing. A finding revealed by what you might call instrumental analysis.