Enjoyment of music comes from the right combination of uncertainty and surprise, according to an analysis of more than 700 pop songs.
Scientists have learned that a “good balance” between knowing what to expect and being charmed by the unexpected is what makes classic hits – such as James Taylor’s Country Road, Tina Turner’s What’s Love Got To Do With It, or The Beatles’ Ob-La-Di, Ob-La-Da – so “irresistibly enjoyable”.
Vincent Cheung, a PhD student at the Max Planck Institute for Human Cognitive and Brain Sciences in Germany and lead author of the study, said: “Understanding how music activates our pleasure system in the brain could explain why listening to music might help us feel better when we are feeling blue.”
They found that brain activity increased in three regions – the amygdala, the hippocampus, and the auditory cortex – when the test subjects were listening to music.
These regions play a role in processing emotions, learning and memory and processing sound respectively, the researchers said.
Writing in the journal Cell Press, the team said it found that music evokes pleasure “by encouraging the listener to continuously generate and resolve expectations as the piece unfolds in time”.
Based on their findings, the researchers suggest that further studies could explore “the combined roles of uncertainty and surprise on humans’ appreciation for other art forms such as dance and film”.
Mr Cheung said: “We think there is great potential in combining computational modelling and brain imaging to further understand not only why we enjoy music, but also what it means to be human.”
Is heavy metal good for your mental health?
Heavy metal music, arguably more than any other genre, has a reputation for the effect it has on its listeners’ behaviours and mental health.
Studies have suggested a link between listening to heavy metal and increased suicide risk or desensitisation to violence, but these have often failed to take account of outside factors, such as poor family relationships, drug abuse and feelings of alienation.
Alexander is the Online Editor at BBC Science Focus and is the one that keeps sciencefocus.com looking shipshape and Bristol fashion. He has been toying around with news, technology and science on internet for well over a decade, and sports a very fetching beard.