In One Ear and Out The Other

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I recently read an interesting article in The New York Times. The article provides answers to many intriguing questions emerging in our brain…

IN ONE EAR AND OUT THE OTHER
Article by Natalie Angier, Published: March 16, 2009, NY Times

By all accounts, my grandfather Nathan had the comic ambitions of a Jack Benny but the comic gifts of a John Kerry. Undeterred, he always kept a few blank index cards in his pocket, so that if he happened to hear a good joke, he’d have someplace to write it down.

How I wish I knew where Nathan stashed that deck.

Like many people, I can never remember a joke. I hear or read something hilarious, I laugh loudly enough to embarrass everybody else in the library, and then I instantly forget everything about it — everything except the fact, always popular around the dinner table, that “I heard a great joke today, but now I can’t remember what it was.”

For researchers who study memory, the ease with which people forget jokes is one of those quirks, those little skids on the neuronal banana peel, that end up revealing a surprising amount about the underlying architecture of memory.

And there are plenty of other similarly illuminating examples of memory’s whimsy and bad taste — like why you may forget your spouse’s birthday but will go to your deathbed remembering every word of the “Gilligan’s Island” theme song. And why you must chop a string of data like a phone number into manageable and predictable chunks to remember it and will fall to pieces if you are in Britain and hear a number read out as “double-four, double-three.” And why your efforts to fill in a sudden memory lapse by asking your companions, “Hey, what was the name of that actor who starred in the movie we saw on Friday?” may well fail, because (what useless friends!) now they’ve all forgotten, too.

Welcome to the human brain, your three-pound throne of wisdom with the whoopee cushion on the seat.

In understanding human memory and its tics, Scott A. Small, a neurologist and memory researcher at Columbia, suggests the familiar analogy with computer memory.

We have our version of a buffer, he said, a short-term working memory of limited scope and fast turnover rate. We have our equivalent of a save button: the hippocampus, deep in the forebrain is essential for translating short-term memories into a more permanent form.

Our frontal lobes perform the find function, retrieving saved files to embellish as needed. And though scientists used to believe that short- and long-term memories were stored in different parts of the brain, they have discovered that what really distinguishes the lasting from the transient is how strongly the memory is engraved in the brain, and the thickness and complexity of the connections linking large populations of brain cells. The deeper the memory, the more readily and robustly an ensemble of like-minded neurons will fire.

This process, of memory formation by neuronal entrainment, helps explain why some of life’s offerings weasel in easily and then refuse to be spiked. Music, for example. “The brain has a strong propensity to organize information and perception in patterns, and music plays into that inclination,” said Michael Thaut, a professor of music and neuroscience at Colorado State University. “From an acoustical perspective, music is an overstructured language, which the brain invented and which the brain loves to hear.”

A simple melody with a simple rhythm and repetition can be a tremendous mnemonic device. “It would be a virtually impossible task for young children to memorize a sequence of 26 separate letters if you just gave it to them as a string of information,” Dr. Thaut said. But when the alphabet is set to the tune of the ABC song with its four melodic phrases, preschoolers can learn it with ease.

And what are the most insidious jingles or sitcom themes but cunning variations on twinkle twinkle ABC?

Really great jokes, on the other hand, punch the lights out of do re mi. They work not by conforming to pattern recognition routines but by subverting them. “Jokes work because they deal with the unexpected, starting in one direction and then veering off into another,” said Robert Provine, a professor of psychology at the University of Maryland, Baltimore County, and the author of “Laughter: A Scientific Investigation.” “What makes a joke successful are the same properties that can make it difficult to remember.”

This may also explain why the jokes we tend to remember are often the most clichéd ones. A mother-in-law joke? Yes, I have the slot ready and labeled.

Memory researchers suggest additional reasons that great jokes may elude common capture. Daniel L. Schacter, a professor of psychology at Harvard and the author of “The Seven Sins of Memory,” says there is a big difference between verbatim recall of all the details of an event and gist recall of its general meaning.

“We humans are pretty good at gist recall but have difficulty with being exact,” he said. Though anecdotes can be told in broad outline, jokes live or die by nuance, precision and timing. And while emotional arousal normally enhances memory, it ends up further eroding your attention to that one killer frill. “Emotionally arousing material calls your attention to a central object,” Dr. Schacter said, “but it can make it difficult to remember peripheral details.”

As frustrating as it can be to forget something new, it’s worse to forget what you already know. Scientists refer to this as the tip-of-the-tongue phenomenon, when you know something but can’t spit it out, and the harder you try the more noncompliant the archives.

It’s such a virulent disorder that when you ask friends for help, you can set off so-called infectious amnesia. Behind the tying up of tongues are the too-delicate nerves of our brain’s frontal lobes and their sensitivity to anxiety and the hormones of fight or flight. The frontal lobes that rifle through stored memories and perform other higher cognitive tasks tend to shut down when the lower brain senses danger and demands that energy be shunted its way.

For that reason anxiety can be a test taker’s worst foe, and the anxiety of a pop quiz from a friend can make your frontal lobes freeze and your mind go blank. That is also why you’ll recall the frustratingly forgotten fact later that night, in the tranquillity of bed.

Memories can be strengthened with time and practice, practice, practice, but if there’s one part of the system that resists improvement, it’s our buffers, the size of our working memory on which a few items can be temporarily cached. Much research suggests that we can hold in short-term memory only five to nine data chunks at a time.

The limits of working memory again encourage our pattern-mad brains, and so we strive to bunch phone numbers into digestible portions and could manage even 10-digit strings when they had area codes with predictable phrases like a middle zero or one. But with the rise of atonal phone numbers with random strings of 10 digits, memory researchers say the limits of working memory have been crossed. Got any index cards?

JavaFX workshop @ Vortex ’09

It was a great day at college. 58 students eagerly waiting in the lab to learn a new technology – JavaFX. Vortex ’09, the technical symposium of the Department of CSE, NITT, was in full swing. As a part of the symposium, a JavaFX workshop was organized by me.

The previous day was a long one which kept me busy learning, looking up sample codes, creating sample tutorials and presentations for the seminar. I tried to familiarize myself with the varied features of the technology. I learnt about how powerful and useful it is. I had prepared four different slides and ten sample codes to elucidate the ease of use of JavaFX.

The workshop was at 2:00 pm. And the sight of such a good turnout for the workshop made me happy. Every participant initially registered at the Open Source University Meetup (OSUM) site, the online community for open source technologies. It was a hands-on workshop, where students could try out programs on Netbeans platform.

Initially I gave a small talk on opensource technologies and the use of OSUM. Then I proceeded to explain the changing times, the necessity for rich internet applications and the emerge of JavaFX.

Learning of any new technology starts with the famous ‘Hello World’ code. Participants were given the first feel of JavaFX by teaching them to write a small HelloWorld application using JavaFX Script.

Then the basics were explained, which included the concepte like data types, syntax, etc. Classes and Objects, the fundamental blocks of any Java code, were handled in detail. All concepts were explained through sample codes.

I went on to explain how to create and modify various Shapes and their properties. Data Binding and the way the bound values are computed in real time was discussed, with a variety of examples. Then simple transitions were explained, like translation, rotation and shearing of objects.

Having gained a substantial amount of practice by trying out codes, the students were ready to learn a bit more advanced concepts like effects on objects. event handling, the most important aspect of RIA’s, was demonstrated next. The last topic for the day was animation. Simple animation effects like tweening were explained using sample codes.I ended the seminar by giving them various external links and resources from where they can learn JavaFX.

The response for the workshop was very good. Students were able to follow and understand easily. And it really made me happy when a few participants mailed me back expressing their views on the workshop.

” It was really great and I got a stronghold of the basics of JavaFX now. Thanks.”

This shows that the workshop was a great success..

 

 

G N Balasubramaniam

Peace and Prosperity with Ragas – Part V

[This series of six posts are excerpts from my Guru, violin maestro (late) Dr. Kunnakudi Vaidyanathan's interview with 'The Hindu'. The therapeutic effect of music has been elucidated. Also in each article is a picture of one famous musician from the Golden era of Carnatic music.]

G N Balasubramaniam
G N Balasubramaniam

ANANDHA BHAIRAVI

My father was the guiding force in my research studies. When he was ill he had more faith in the curative power of  music than the medicines administered to him. I was once preparing to show the remedial power of Ananda Bhairavi. Kannadasan had challenged in public to test his blood pressure after hearing Ananda Bhairavi from my violin.

He had promised to preside over a function but became ill with hypertension. Cajoled by the organisers he reluctantly came  and to my utter surprise requested me to render any raga, which could soothe him. I played Ananda Bhairavi elaborately.

At the close of the concert, Kannadasan came up to the dais and announced that he was feeling much better. Ananda Bhairavi has such soothing effect. Saint Tyagaraja in ‘O, Jagadambha’ prays for the deity’s blessing.

Muthuswamy Dikshitar underlines the importance of concentration and focus in `Manasa guru guha kripam bajare; Maya mama hrith thapam thyajare’ indicating Ananda Bhairavi’s close link to matters of the heart.

Tamil Odhuvar Moorthigal generally use Ananda Bhairavi in rendering Thevaram, Thiruvachakam and Dhivya Prabantham in temples.

DESH

The suppression of the senses releases a negative force. The process of sublimation needs a spiritual path. Rag Desh can provide that. Its positive energy gives one serenity, peace, inner joy, right valour, universal love and patriotism.

The mellifluous ‘Vande Matharam’ has been aptly composed in Desh. ‘Vaishnava Janatho,’ Mahatma Gandhi’s favourite, is set in Desh, which is a favourite in both Carnatic and Hindustani streams of music.

‘Shanthi nilava vendum,’ ‘Inda ulagil irukkum mandaril ezhil udayon engal tamizhan’ (M.M. Mariyappa for the film “Kanjan”), ‘Leelaigal purivane’ in the film “Meera,” ‘Thunbam nergayil’ in “Or Iravu,” ‘Maadu meykum kanna’ sung by Madurai Somu, ‘Muthamizhil Pada Vanden’ — that I composed for “Mel Nattu Marumagal” are well known examples in Desh.

« Part 4

Thyagaraja Aradhana ’09 @ NIT Trichy

The Thyagaraja Aradhana is celebrated every year at saint – composer Thyagaraja’s samadhi at Thiruvaiyaru. Hundreds of Carnatic musicians pay their homage to the saint composer by rendering his `pancharathna kritis’ (five jewels of his renderings) in chorus on the banks of the Cauvery at Thiruvaiyaru.

In NITT, the Thyagaraja Aradhana is organized by Amruthavarshini, the Carnatic Music Club of NITT. Various professional musicians from Trichy and SriRangam participate in the Aradhana, along with students and faculty of the college. The Pancharatna kritis are sung in the same style as is done at Tiruvaiyaru, followed by rendering of Thyagaraja kritis by the artistes and students.

This year’s Aradhana was conducted on March 1st, in A23 hall. On the previous day, Ganamrutham, the music competition for school students, was conducted by the club. The prize winners were given a chance to perform on the day of the Aradhana. The children sang really well. They were accompanied on percussion and violin by the club members.

The artistes arrived by van at around 5: 30. After a brief introduction by Satish, the President of the club, the rendering of the kritis started.

The first song was Sri Ganapathini in Sourashtram. This song was followed by Gurulekha Etuvanti song. Then the five pancharatna kritis – Jagadanandakaaraka, Dudukugala, Saadinchane, Kanakanaruchira and Entharo mahanu bhavulu were rendered, under the guidance of Shri T.K.V.Ramanujacharyulu.

After the rendering of the pancharatna kritis, the winners of the Ganamrutham competitions received their prizes from the artistes. The programme concluded with a ‘banana leaf’ dinner.

It was a memorable evening, with loads of music to the ears and peace to the heart.