Help! From "The Value of Music that Tickles the Brain" by Kara Rogers. http://www. britannica. com/blogs/2013/04/the-value-of-musi c-that-tickles-the-brain/. 2013. Web.
Using functional magnetic resonance imaging (fMRI) while study participants listened to excerpts of music that they were hearing for the first time (to avoid influence from established music preferences), the researchers found that activity in the nucleus accumbens consistently predicted whether participants enjoyed a given excerpt of music and whether they would purchase the music. The greater the activity in the nucleus accumbens, the deeper into their pockets the participants were willing to dig when the pieces were auctioned off in the study. Increased activity in the nucleus accumbens also translated into more cross-talk with the auditory cortex, providing a basis of interaction between the two regions that has been little understood.

How does the author present the points in this paragraph?

The author explains the research process.
The author defines parts of the human brain.
The author gives examples of popular music theory.
The author identifies the cause and effect of music on the brain.