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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The most terrifying thing about Donald Trump's speech? What he didn't say

No politician uses official speeches to put across their most controversial ideas. But Donald Trump's are not hard to find. 

As Donald Trump took the podium on a cold Washington day to deliver his inauguration speech, the world held its breath. Viewers hunched over televisions or internet streaming services watched Trump mouth “thank you” to the camera, no doubt wondering how he could possibly live up to his deranged late-night Twitter persona. In newsrooms across America, reporters unsure when they might next get access to a president who seems to delight in denying them the right to ask questions got ready to parse his words for any clue as to what was to come. Some, deciding they couldn’t bear to watch, studiously busied themselves with other things.

But when the moment came, Trump’s speech was uncharacteristically professional – at least compared to his previous performances. The fractured, repetitive grammar that marks many of his off-the-cuff statements was missing, and so, too, were most of his most controversial policy ideas.

Trump told the crowd that his presidency would “determine the course of America, and the world, for many, many years to come” before expressing his gratefulness to President Barack Obama and Michelle Obama for their “gracious aid” during the transition. “They have been magnificent," Trump said, before leading applause of thanks from the crowd.

If this opening was innocent enough, however, it all changed in the next breath. The new president moved quickly to the “historic movement”, “the likes of which the world has never seen before”, that elected him President. Following the small-state rhetoric of his campaign, Trump promised to take power from the “establishment” and restore it to the American people. “This moment," he told them, “Is your moment. It belongs to you.”

A good deal of the speech was given over to re-iterating his nationalist positions while also making repeated references to the key issues – “Islamic terrorism” and families – that remain points of commonality within the fractured Republican GOP.

The loss of business to overseas producers was blamed for “destroying our jobs”. “Protection," Trump said, “Will lead to great strength." He promised to end what he called the “American carnage” caused by drugs and crime.

“From this day forward," Trump said, “It’s going to be only America first."

There was plenty in the speech, then, that should worry viewers, particularly if you read Trump’s promises to make America “unstoppable” so it can “win” again in light of his recent tweets about China

But it was the things Trump didn't mention that should worry us most. Trump, we know, doesn’t use official channels to communicate his most troubling ideas. From bizarre television interviews to his upsetting and offensive rallies and, of course, the infamous tweets, the new President is inclined to fling his thoughts into the world as and when he sees fit, not on the occasions when he’s required to address the nation (see, also, his anodyne acceptance speech).

It’s important to remember that Trump’s administration wins when it makes itself seem as innocent as possible. During the speech, I was reminded of my colleague Helen Lewis’ recent thoughts on the “gaslighter-in-chief”, reflecting on Trump’s lying claim that he never mocked a disabled reporter. “Now we can see," she wrote, “A false narrative being built in real time, tweet by tweet."

Saying things that are untrue isn’t the only way of lying – it is also possible to lie by omission.

There has been much discussion as to whether Trump will soften after he becomes president. All the things this speech did not mention were designed to keep us guessing about many of the President’s most controversial promises.

Trump did not mention his proposed ban on Muslims entering the US, nor the wall he insists he will erect between America and Mexico (which he maintains the latter will pay for). He maintained a polite coolness towards the former President and avoiding any discussion of alleged cuts to anti-domestic violence programs and abortion regulations. Why? Trump wanted to leave viewers unsure as to whether he actually intends to carry through on his election rhetoric.

To understand what Trump is capable of, therefore, it is best not to look to his speeches on a global stage, but to the promises he makes to his allies. So when the President’s personal website still insists he will build a wall, end catch-and-release, suspend immigration from “terror-prone regions” “where adequate screening cannot occur”; when, despite saying he understands only 3 per cent of Planned Parenthood services relate to abortion and that “millions” of women are helped by their cancer screening, he plans to defund Planned Parenthood; when the president says he will remove gun-free zones around schools “on his first day” - believe him.  

Stephanie Boland is digital assistant at the New Statesman. She tweets at @stephanieboland