Could melody analysis spot the bum notes in our brain patterns?

Music in the brain.

The culmination of Steven Spielberg's 1977 classic Close Encounters of the Third Kind gave us one of the great moments in sci-fi movie history. It starts with a simple, unforgettable five-note melody – the musical phrase used by US government scientists in an attempt to communicate with a huge UFO that has just descended on the rocky Wyoming countryside. There's a hushed pause as the last note drifts in the night air, followed by a deafening blast as the alien vessel gives its rumbling response. Before we know it, the two parties are bouncing arpeggios off one another; a beautiful, joyful symphonic conversation.

As well as providing a wondrously optimistic antidote to the end-of-days mentality of today's chrome-plated alien blockbusters, that final sequence perfectly articulates the idea of melody as a universal language, one that might be used to explore previously unfathomable mysteries.

In many ways, the human brain is almost as alien to us as the extraterrestrial visitors of Close Encounters. Our relationship with our brains is a little like the relationship most of us have with our PCs – we use them intuitively and we understand the surface processes, but we've only the most basic understanding of how everything works under the hood.

With researchers still struggling to get to grips with the brain's inner workings, the treatment or management of an incredibly varied disorder like epilepsy remains an uphill struggle for medical institutions. One of the keys to better management of epilepsy is the ability to forecast impending seizures, the disorder's main cause of death. Clinical studies in this area predominantly focus on the use of electroencephalogram (EEG) data, which records the brain's electrical activity, but the difficulty involved in accurately interpreting this data is a recurring problem.    

A just-launched European research project, spearheaded by the Italian Association for the Research on Brain and Spinal Cord Diseases (ARCEM), aims to prove that the universal language of melody could provide a solution to this problem. The project has pulled together neuroscientists, IT specialists, musicians and music analysts in an attempt to predict impending seizures using a method called data sonification.

Data sonification is the process of expressing visual data, like EEG read-outs, in the form of melodies. The project is investigating whether tying EEG data sets to musical melodies could help researchers, and eventually doctors, to spot the abnormal brain activity that prefaces a possible seizure.

What advantages does turning EEG data into melody streams bring over the current methods of studying visual brain pattern data to predict epileptic seizures? According to the project team, turning visual data into audio melodies could help researchers to sequence and conceptualise the brain's activity over time, increasing the possibility of catching the hidden signs that could signal a seizure. These signs would be expressed as an abnormal or jarring sound in the melody, essentially turning seizure prediction into a clinical search for a bum note.

Data sonification also brings a more human advantage – our intrinsic ability to spot the off-key note in a melody. The ear is naturally attuned to audio patterns and detecting irregularities within them. The project team believes that expressing EEG data musically could help doctors and researchers identify seizure-indicative anomalies more easily than looking at graphs and read-outs.

Unfortunately, it'll be a while before we find out if this intriguing approach will bear fruit in the field of epileptology. The project has only just begun to gather the huge volumes of EEG data needed to validate the data sonification technique; the team hopes to present some preliminary results by the end of 2013.  

Although it's too early to prove the effectiveness of data sonification for predicting seizures, there's something beautiful about the idea that music, the universal language, might hold the key to furthering our understanding, not of visitors from another planet, but of the inner recesses of our own minds. Spielberg would be proud.

Link to full feature: http://www.hospitalmanagement.net/features/featuretuned-in-tracking-epilepsy-melody-analysis-neurology/

Photograph: Getty Images

 

Chris Lo is a senior technology writer for the NRI Digital network.

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If Seumas Milne leaves Jeremy Corbyn, he'll do it on his own terms

The Corbynista comms chief has been keeping a diary. 

It’s been a departure long rumoured: Seumas Milne to leave post as Jeremy Corbyn’s director of communications and strategy to return to the Guardian.

With his loan deal set to expire on 20 October, speculation is mounting that he will quit the leader’s office. 

Although Milne is a key part of the set-up – at times of crisis, Corbyn likes to surround himself with long-time associates, of whom Milne is one – he has enemies within the inner circle as well. As I wrote at the start of the coup, there is a feeling among Corbyn’s allies in the trade unions and Momentum that the leader’s offfice “fucked the first year and had to be rescued”, with Milne taking much of the blame. 

Senior figures in Momentum are keen for him to be replaced, while the TSSA, whose general secretary, Manuel Cortes, is one of Corbyn’s most reliable allies, is said to be keen for their man Sam Tarry to take post in the leader’s office on a semi-permanent basis. (Tarry won the respect of many generally hostile journalists when he served as campaign chief on the Corbyn re-election bid.) There have already been personnel changes at the behest of Corbyn-allied trade unions, with a designated speechwriter being brought in.

But Milne has seen off the attempt to remove him, with one source saying his critics had been “outplayed, again” and that any new hires will be designed to bolster, rather than replace Milne as comms chief. 

Milne, however, has found the last year a trial. I am reliably informed that he has been keeping a diary and is keen for the full story of the year to come out. With his place secure, he could leave “with his head held high”, rather than being forced out by his enemies and made a scapegoat for failures elsewhere, as friends fear he has been. The contents of the diary would also allow him to return in triumph to The Guardian rather than slinking back. 

So whether he decides to remain in the Corbyn camp or walk away, the Milne effect on Team Corbyn is set to endure.

 

Stephen Bush is special correspondent at the New Statesman. He usually writes about politics.