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Study links emotional and neural responses to musical performance

Date:
December 20, 2010
Source:
Florida Atlantic University
Summary:
It is well known that music arouses emotions. But why do some musical performances move us, while others leave us flat? Why do musicians spend years perfecting the subtle nuances that bring us to tears? Scientists have now identified key aspects of musical performance that cause emotion-related brain activity, and they have shown for the first time how these performance nuances work in the brain, in real-time.

Animation of the real-time changes in neural activity that were time-locked to the tempo fluctuations in a musical performance of Frédéric Chopin's Etude in E major, Op.10, No. 3. This animation includes a subset of the brain regions that exhibited time-locked activity. Shown are cortical and subcortical motor areas thought to be involved in pulse perception, and a network of areas consistent with the human 'mirror neuron' system. The specific brain regions are: Top left 2-D rendering (top to bottom): right anterior cingulate, right basal ganglia (lentiform nucleus/putamen). Top middle 3-D rendering (clockwise from top): bilateral supplementary motor area (SMA), primary motor cortex, left BA 44, right anterior cingulate. Bottom left 3-D rendering (right hemisphere; moving counterclockwise from top): SMA and primary motor cortex, inferior parietal lobe BA 40, superior temporal sulcus, insula, ventral premotor cortex. Bottom right 3-D rendering (left hemisphere, clockwise from top): SMA, primary motor cortex, BA 44, insula. Mean correlations (across listeners) were animated by weighting the tempo curve according to regional peak t-scores and projecting the result onto the corresponding brain areas.
Credit: Florida Atlantic University

It is well known that music arouses emotions. But why do some musical performances move us, while others leave us flat? Why do musicians spend years perfecting the subtle nuances that bring us to tears? Scientists at Florida Atlantic University have now identified key aspects of musical performance that cause emotion-related brain activity, and they have shown for the first time how these performance nuances work in the brain, in real-time.

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The study, titled "Dynamic Emotional and Neural Responses to Music Depend on Performance Expression and Listener Experience," published in the December 16 issue of PLoS One, was conducted at the Center for Complex Systems and Brain Sciences (CCSBS) in FAU's Charles E. Schmidt College of Science, in collaboration with University MRI of Boca Raton, a facility located in the Florida Atlantic Research Park that offers a comprehensive range of diagnostic imaging services. Edward Large, Ph.D., the study's principal investigator, and Heather Chapin, Ph.D., the lead author, believe that their study pinpoints how musical performances charge up the brain's emotional centers, and say that their technique will lead to new ways of studying responses to music and other emotional stimuli.

The researchers first recorded an expert musician's performance of Frédéric Chopin's Étude in E- Major, Op. 10, No. 3 on a computerized piano (the "expressive" performance), then they synthesized a version of the same piece using a computer, without the human performance nuances (the "mechanical" performance). Both versions had the same musical elements -- melody, harmony, rhythm, average tempo and loudness -- and both were recorded on the same piano. But only the expressive performance included dynamic changes in tempo and loudness, the performance variations that pianists use to evoke emotional responses. In the listening study, Large and Chapin used participants with an affinity for music.

They combined behavioral analysis with fMRI neuroimaging, a specialized MRI scan which measures change in blood flow related to neural activity in the brain, as participants listened to both performances. The listening study was conducted in three parts. First, participants reported their emotional responses in real-time using specialized computer software. Immediately after providing their emotion ratings, they were placed in the fMRI and instructed to lie motionless in the scanner with their eyes closed and asked to listen to both versions of the music without reporting their emotional response. Immediately following the fMRI, they performed the emotion rating assignment again.

"We deliberately implemented these three steps in our study to ensure the consistency of the emotions our participants reported in the behavioral study with the results of the fMRI," said Large.

The fMRI served as a critical tool to examine which areas of the brain "lit up" in response to the music. The analysis of brain activity compared responses to the expressive performance with responses to the mechanical performance, and responses of experienced listeners with those of inexperienced listeners. It also compared the tempo changes of the performance to the brain activations of listeners in real-time.

The results from this study have confirmed the hypothesis that the human touch of an expressive performance by a skilled pianist evokes emotion and reward related neural activity. Furthermore, musically experienced listeners were found to have increased activity in the emotion and reward centers of the brain.

"Our experienced listeners were not professional musicians, but did have experiences performing music, such as singing in a choir or playing in a band," said Large. "The fMRI data suggests that experienced listeners get a greater charge out of the music, although we can't say from this data whether the increased neural activation is due to their experience or whether these individuals seek out musical experiences because they derive greater pleasure from music."

Perhaps most interestingly, the results also revealed neural activity that followed performance nuances in real-time. These activations occurred in the motor networks of the brain that are thought to be responsible for following the beat of the music and in the brain's mirror neuron system. The human mirror neuron system appears to play a fundamental role in both understanding and imitating action. This system is "fired up" when someone observes an action they can do being performed by someone else.

"It had previously been theorized that the mirror neuron system provides a mechanism through which listeners feel the performer's emotion, making musical communication a form of empathy," said Large. "Our results tend to support that hypothesis."

Video

Description of video: Animation of the real-time changes in neural activity that were time-locked to the tempo fluctuations in a musical performance of Frédéric Chopin's Etude in E major, Op.10, No. 3. This animation includes a subset of the brain regions that exhibited time-locked activity. Shown are cortical and subcortical motor areas thought to be involved in pulse perception, and a network of areas consistent with the human 'mirror neuron' system. The specific brain regions are: Top left 2D rendering (top to bottom): right anterior cingulate, right basal ganglia (lentiform nucleus/putamen). Top middle 3D rendering (clockwise from top): bilateral supplementary motor area (SMA), primary motor cortex, left BA 44, right anterior cingulate. Bottom left 3D rendering (right hemisphere; moving counterclockwise from top): SMA and primary motor cortex, inferior parietal lobe BA 40, superior temporal sulcus, insula, ventral premotor cortex. Bottom right 3D rendering (left hemisphere, clockwise from top): SMA, primary motor cortex, BA 44, insula. Mean correlations (across listeners) were animated by weighting the tempo curve according to regional peak t-scores and projecting the result onto the corresponding brain areas.


Story Source:

The above story is based on materials provided by Florida Atlantic University. Note: Materials may be edited for content and length.


Cite This Page:

Florida Atlantic University. "Study links emotional and neural responses to musical performance." ScienceDaily. ScienceDaily, 20 December 2010. <www.sciencedaily.com/releases/2010/12/101217091205.htm>.
Florida Atlantic University. (2010, December 20). Study links emotional and neural responses to musical performance. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/2010/12/101217091205.htm
Florida Atlantic University. "Study links emotional and neural responses to musical performance." ScienceDaily. www.sciencedaily.com/releases/2010/12/101217091205.htm (accessed October 25, 2014).

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