Researchers from the Max Planck Institute for Human Development in Berlin have shown that synchronization emerges between brains when making music together, and even when musicians play different voices. In a study published November 29th in Frontiers in Neuroscience, Johanna Sänger and her team used electrodes to record the brain waves of guitarists while they played different voices of the same duet. The results point to brain synchronicity that cannot be explained away by similitudes in external stimulation but can be attributed to a more profound interpersonal coordination.
Scientists working with Ulman Lindenberger at the Max Planck Institute in Berlin already discovered synchronous brain activity between musicians playing the same piece in 2009. The current study goes one step further by examining the brain activity of guitar players performing a piece of music with two different parts. Their aim was to find out whether musicians' brains would synchronize if the two guitarists were not playing exactly the same notes, but instead played different voices of the same song.
To test their hypothesis, the psychologists arranged 32 experienced guitarists in duet pairs, and recorded electrical activity in different brain regions of each musician. They were then asked to play a sequence from the "Sonata in G Major" by Christian Gottlieb Scheidler a total of 60 times, and the duet partners were given slightly different tasks: each musician had to play a different voice, and one of the two was responsible for ensuring that they started at the same time and held the same tempo. Thus, one person took the lead and the other followed.
The duet's brain activities showed coordinated brain oscillations, even when playing different voices of the same duet. Called phase coherence, this synchronous activity suggests a direct neural basis for interpersonal coordination.
"When people coordinate their own actions, small networks between brain regions are formed. But we also observed similar network properties between the brains of the individual players, especially when mutual coordination is very important; for example at the joint onset of a piece of music," says Johanna Sänger. The difference between leader and follower was also reflected in the results of the measurement of electrical activity captured by electrodes: "In the player taking the lead, the internal synchronization of an individual's brain waves was stronger and, importantly, was present already before the duet started to play," says Johanna Sänger. "This could be a reflection of the leading player's decision to begin playing at a certain moment in time," she added.
The current data indicate that synchronization between individuals occurs in brain regions associated with social cognition and music production. And such interbrain networks are expected to occur not only while performing music. "We think that different people's brain waves also synchronise when people mutually coordinate their actions in other ways, such as during sport, or when they communicate with one another," Sänger says.
This press release was posted to serve as a topic for discussion. Please comment below. We try our best to only post press releases that are associated with peer reviewed scientific literature. Critical discussions of the research are appreciated. If you need help finding a link to the original article, please contact us on twitter or via e-mail.
Free-living songbirds show increased stress hormone levels when nesting under white street lights. But different light spectra may have different physiological effects as this study finds, suggesting that using street lights with specific colour spectra may mitigate effects of light pollution on wildlife
Scientists identify the condition aphantasia, in which people cannot create images in their head
The dust in our homes contains an average of 9,000 different types of fungi and bacteria, a study suggests.
A mosquito can bear up to 23 times its total body weight on each leg, which is crucial for landing on water – the insect's secret is way it stands
Tropical species with smaller geographical ranges are more likely to die out in a warming climate than those that can adapt by ‘invading’ new regions
Most people think of bacteria as germs, signs of filth, or unwanted bringers of disease. Slowly, that view …
The gloomy octopuses crowded at Jervis Bay, Australia, appear to spit and throw debris such as shell at each other in what could be an intentional use of weapons
Therapies based on hormones that make us more trusting enhance our natural placebo effect – a finding that could alter the way clinical trials are conducted
The blind, hairless babies born recently at Washington D.C.'s National Zoo are completely dependent on their mothers—who can sometimes accidentally crush them.
The poop-hoarding insects have an amazingly advanced internal GPS that allows them to navigate by day or night.