The article I read was about a woman who had musical
hallucinations. She constantly heard music playing. It wasn’t as if a song was
stuck in her head like we often have after hearing a pop song too many times on
the radio. Instead, they were so real, the woman, Sylvia, could easily imagine
a choir or marching band in her room. Her condition is rare. People with
musical hallucinations usually are psychologically normal — except for the
songs they are sure someone is playing. The doctors decided to perform tests
such as scanning her brain while she heard those songs and asking her to
evaluate how loud or soft it was on a scale. By comparing the two states, they
found important clues to how the brain generates these illusions. They found
that a few regions consistently produced stronger brain waves when the
hallucinations were louder. The research helps scientist observe the parts of
the brain that control our auditory parts.
The
conclusions of the study are preliminary, because it was based on a single
person. However, the same method may work on other people with musical
hallucinations. Sometimes people with musical hallucinations say that hearing
real music can quiet the imaginary tunes. Researchers had already found that
they could use a similar method to mask tinnitus, in
which people have a nagging ringing in the ears. Dr. Kumar argues that these
results support a theory developed by Karl
Friston of the Wellcome Trust Center for Neuroimaging: that our
brains are prediction-generating machines. The research could explain why some
people have music hallucinations, especially people suffering from hearing
loss, and how to negate it.
The
article was pretty clear and covered everything; I don’t have much to say about
the article itself. It could’ve provided some visual aid to understand Karl
Friston’s theory or some of the MRI scans of Sylvia’s brain to show differences
in the brain between when she heard loud and soft music. However, the writing
was very well done.
Zimmer, Carl. "Phantom
Melodies Yield Real Clues to Brain’s Workings." Http://www.nytimes.com/?action=click&contentCollection=Science®ion=TopBar&module=HomePage-Title&pgtype=article.
N.p., 13 Feb. 2014. Web. 13 Feb. 2014.