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Dopamine plays a role in the enjoyment of music
Dopamine plays a part in the pleasure we experience when listening to music.
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Dopamine plays a part in the pleasure we experience when listening to music. (Shutterstock/Merla)
A
new study published in the Proceedings of the National Academy of Sciences suggests that there is a link between dopamine and pleasure experienced by people listening to music.
in the study, researchers from the University of Barcelona in Spain and and Neurological Institute of McGill University in Montreal, Canada, set out to discover if dopamine, a neurotransmitter that plays a key role in the regulation of pleasant experiences, had a direct impact on feelings of enjoyment when listening to music.
in the laboratory, the researchers pharmacologically manipulated and analyzed the dopaminergic transmission of 27 participants while they were listening to music in the course of three different sessions at weekly intervals.
At the first session, participants were given the dopamine precursor levodopa, which increases the availability of dopamine in the brain. In the second session, they were given the dopamine antagonist risperidone, which reduces dopaminergic signaling. Finally in the third session, participants were given a placebo.
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In the course of each of the sessions, participants, who listened to their favorite songs and ten other singles, were asked to evaluate their experience of each song subjectively along with the variation in their levels of enjoyment occasioned by the transition from one song to the next.
At the same time, the researchers measured changes in pleasure and reward responses linked to the music using electrodermal activity, which is a very sensitive technique to evaluate emotional changes.
The study findings show that risperidone impaired participants' capacity to experience the chills that are considered to be the physical manifestation of peaks of musical pleasure. At the same time, participants' ratings on emotional response were higher when they had been given levodopa.
In parallel, the researchers assessed the participants' motivation to listen to music by asking them how much they would be willing to spend to purchase each of the songs. The test subjects were willing to spend more following administration of levodopa than they were when given risperidone. In short, their motivation to listen to music again was higher when their dopaminergic transmission had been increased, and lower when it had been reduced.
