Despite gruesome lyrics, death metal does not desensitise fans to images of violence, a study shows.
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By Victoria Gill Science correspondent, BBC News
Metal band on stage (c) Getty Images Image copyright Getty Images
Iʼve had one desire since I was born; to see my body ripped and torn.
The lyrics of death metal band Bloodbathʼs cannibalism-themed track, Eaten, do not leave much to the imagination. But neither this song - nor the gruesome lyrics of others of the genre - inspire violence.
That is the conclusion of Macquarie Universityʼs music lab, which used the track in a psychological test.
It revealed that death metal fans are not "desensitised" to violent imagery.
The findings are published in the Royal Society journal Open Science,
"[Death metal] fans are nice people," said Prof Bill Thompson, from the Australian university, which is based in Sydney. "Theyʼre not going to go out and hurt someone."
This latest study is part of a decades-long investigation by Prof Thompson and his colleagues into the emotional effects of music. These effects, he explained, are complex.
"Many people enjoy sad music, and thatʼs a bit of a paradox - why would we want to make ourselves sad?" he asked. "The same can be said of music with aggressive or violent themes. For us, itʼs a psychological paradox - so [as scientists] weʼre curious, and at the same time we recognise that violence in the media is a socially significant issue."
How do scientists test peopleʼs sensitivity to violence?
With a classic psychological experiment that probes peopleʼs subconscious responses; and by recruiting death metal fans to take part. The test involved asking 32 fans and 48 non-fans listen to death metal or to pop whilst looking at some pretty unpleasant images.
Lead researcher Yanan Sun explained that the aim of the experiment was to measure how much participantsʼ brains noticed violent scenes, and to compare how their sensitivity was affected by the musical accompaniment.
To test the impact of different types of music, they also used a track they deemed to be the opposite of Eaten.
Image copyright Bloodbath/Northern Music
Image caption Lead singer of Bloodbath, Nick Holmes, described his bandʼs lyrical content as ʼan aural version of an 80ʼs horror filmʼ
"We used ʼHappyʼ by Pharrell Williams as a [comparison]," said Dr Sun.
Each participant was played Happy or Eaten through headphones, while they were shown a pair of images - one to each eye. One image showed a violent scene, such as someone being attacked in a street. The other showed something innocuous - a group of people walking down that same street, for example.
"Itʼs called binocular rivalry," explained Dr Sun. The basis of this psychological test is that when most people are presented with a neutral image to one eye and a violent image to the other - they see the violent image more.
"The brain will try to take it in - presumably thereʼs a biological reason for that, because itʼs a threat," Prof Thompson explained.
"If fans of violent music were desensitised to violence, which is what a lot of parent groups, religious groups and censorship boards are worried about, then they wouldnʼt show this same bias. "But the fans showed the very same bias towards processing these violent images as those who were not fans of this music."
What did the band think of their music being used like this?
"We donʼt have any issue with it," Bloodbathʼs lead singer Nick Holmes told BBC News. "The lyrics are harmless fun, as the study proved." He added that Bloodbathʼs lyrical content was "basically an aural version of an 80s horror film".
"The majority of death metal fans are intelligent, thoughtful people who just have a passion for the music," he said. "Itʼs the equivalent of people who are obsessed with horror movies or even battle re-enactments."
Why does this matter?
Prof Thompson said the findings should be "reassuring to parents or religious groups" concerned about violent music.
More broadly, there is still concern that violence in media leads to social problems. "If youʼre desensitised to violence, perhaps you wouldnʼt care if you saw someone on the street getting hurt - you wouldnʼt help."
But while research has found some evidence of such desensitisation in people who play a lot of violent video games, music, it seems, is different.
"The dominant emotional response to this music is joy and empowerment," said Prof Thompson. "And I think that to listen to this music and to transform it into an empowering, beautiful experience - thatʼs an amazing thing."
Nick Holmes identified with that, saying that most of the music he enjoyed was "melancholic, dramatic, sad or aggressive and not much in-between".
"I take joy and empowerment from those styles," he told BBC News.
On the topic of the Eatenʼs lyrics, he added: "I didnʼt personally write them, but I would be frankly astounded if anyone listened to that song and then felt a desire to be eaten by a cannibal."
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