Wednesday, January 6, 2010

More on Novelty and new experiences


Few days after listening to Robert Sapolsky's talk, now I got to read this study on the importance of learning new stuff at-least every decade. This is a great wake up call for me (at the dawn of a new decade) especially at an age when complacent starts to sneak in slowly.
I am open to novelty as long as it involves Max which limits my options outside the safety of home zone (no wonder I read neuroscience to keep myself busy for a life time with Max next to me). I try to explain
the significance of this to my parents, siblings and friends in vain,  since its hard to get through the cognitive bias barrier without sounding preachy and the benefits being anhedonic and very abstract to quantify doesn't help the process either. It's like trying to quantify "morality".

"I remember sitting my folks down and sternly counselling them to make sure they learnt a completely novel skill once per decade, to ensure that their brain doesn’t turn to mush.  There is plenty of evidence to support such advice (well, aside from the ‘mush’ bit), but here is a new finding that adds to that evidence, with a whole new level of detail.  Xu et al from the Universities of Santa Cruz and Texas, in the USA, did an experiment with one month old mice.  They taught the mice a task and then imaged their brains, at the level of individual dendrites. They showed that, within ONE HOUR of the training session, the mice who did well at the task (that is, had learnt it to some extent), had an increase in dendritic spines of about 10%.  That is, the brain had undergone structural as well as functional changes. How cool is that?! One training session.  What’s more, about 50% of the new spines were still there two weeks later and, for mice training for 16 days, 40% of the new spines were still there three months later.  The authors conclude, and as far as I can tell it is a sensible conclusion,
‘these data indicate that motor learning selectively stabilizes learning-induced new spines and destabilizes pre-existing spines. The prolonged persistence of learning-induced synapses provides a potential cellular mechanism for the consolidation of lasting, presumably permanent, motor memories.’
Finally, they conclude their abstract, which is the bit that is meant to make the reader think this paper truly deserves its place in Nature, with this:
‘Practice of novel, but not previously learned, tasks further promotes dendritic spine formation in adulthood.’ "

Tuesday, January 5, 2010

Who Will Grow Your Food? Part I

The decline in agrarian lifestyle (reverse Moore's law?) is not just an American phenomena but an universal one. It's a scary thought and might hit right in our belly. The issue is agriculture is not flamboyant enough for youngsters to feel hip and trendy and the truth is they are right. Agriculture is probably the last frontier, yet to be conquered by technology (sans bio-tech).  We need a Steve Jobs in that field to bring about a I-Pod of Agriculture. Lets brings in the gadgets, flat screens, Robots et al and the crowd will follow soon. In the mean time to keep us scared, excellent post:

"
Necessity, then, is leading us to a vast cultural shift, and one we're ill prepared for. On Science Blogs there's a lot of discussion (good and valuable) about the importance of science education and preparing young people for careers in science. In the culture at large, there's a lot talk (good and valuable) about the coming demographic shift in which we will need a lot more nurses, doctors and specialists in elder care. There is almost no discussion whatsoever of the even more pressing crisis in agriculture - the profound need to train young people to grow food. The assumption has been that technology and resources are infinite and the path to ever-fewer farmers and offshoring of agriculture will continue indefinitely.
Even more than the "technology and cheap energy will save us" assumption that is so prevalent and wrong in our society is another underlying assumption, even more destructive. It is that because agriculture is unskilled labor, work suitable to people who aren't qualified for better and higher things, we will simply be able to handle this through market forces - as low wage jobs disappear in one area, those people will just become farmers. But that's ridiculous on several levels. The first is that low wage workers can't buy land, and often can't even rent it. But the more important one is this - agriculture is highly skilled, highly thoughtful, important work that requires an enormously varied skill set. I know this because I've been trying to acquire it for most of the last decade, and I now finally feel like I know enough to describe what I don't know. Learning to farm was considerably harder than academia, than learning multiple languages, reading Kant or writing publishable papers. It was also a hell of a lot more fun, but that doesn't diminish the difficulty of understanding an ecological system that you depend upon.
Let us say that we will need only 5% of the US population to become farmers. But since the vast majority of farmers are facing retirement within the next two decades, and under 35 farmers are such a tiny percentage, that means we will need to train 30-50 times as many young farmers in the next two decades as we have been doing. The numbers could be substantially higher. But where would even those small numbers of farmers come from? Even if the younger farmers were to have a lot of kids and encourage them to stay on the farm, that doesn't resolve the problem.
So where do they come from? This is a new problem for human society - while we've always had some people take up agriculture as a new profession (and when that happened, say, during the settlement of the US west, there were always extremely high failure rates and ecological costs), the vast majority of those who did the work and stayed at it grew up on farms. We have never before in human history (except perhaps when we developed agriculture, and that didn't happen all at once) had to teach an entire generation of non-farmers to farm. But that's the problem we face."

Monday, January 4, 2010

Top Dog names of 2009

"Max" is runner up for 2009 (damn was top name of 2008) :

Top names of 2009
1. Bella
2. Max
3. Bailey
4. Lucy
5. Molly
6. Buddy
7. Maggie
8. Daisy
9. Chloe
10. Sophie

Top names of 2008
1. Max
2. Bailey
3. Bella
4. Molly
5. Lucy
6. Buddy
7. Maggie
8. Daisy
9. Sophie
10. Chloe

TED Talk on Mirror Neurons by V.S.Ramachandran

I have been checking the TED website everyday since his TED talk in early November 2009. It's a good talk for starters but I am disappointed since no new information and I think his 2006 Edge Essay has more information on Mirror Neurons. Nevertheless, TED is a great platform to launch the empathy neurons to the world since someday this is going to have profound impact defining who we are.


Bringing Marley Home


John Grogan bought a new house but sold the old house where Marley was buried. They didn't have the heart to leave Marley in the old house, so ...:



"Marley & Me brought my family many blessings. I quit my newspaper job to write books, and Jenny and I were able to realize a long-held dream. We had always wanted to live in one of those stone farmhouses that dot the Pennsylvania landscape. Now we bought a house, fixed it up, and moved in. An old claptrap cottage on the property became my writing studio. We planted a garden and filled a once-abandoned coop with baby chicks. Our two new Labs, Woodson—adopted from the Marley & Me movie set—and Gracie, “the good one,” romped joyfully through the fields. We reveled in every day.




It was all because of Marley. Had he been a better dog, more controllable and behaved, there would have been no story. I found my inspiration in all that he did wrong—and in the way he challenged us, forging us into a stronger, closer family.

There was only one thing missing, and that was Marley. When he died in 2003, I buried him on the edge of the woods at the house where we then lived. Now that house stood vacant with a FOR SALE sign in the front yard.

From our new home, it nagged at us. Finally, one morning, Jenny blurted out what we’d both been thinking: “What about Marley? We can’t just leave him behind.” I resisted at first. The thought of exhuming our beloved bad boy sounded like the kind of behavior I normally attribute to “ those nutty dog people.”

But Marley was no ordinary pet. He would forever be a beacon of loyalty and trust, a life force that changed us forever. We knew what we had to do.

And so on a clear, crisp day, Jenny and I arrived at our soon-to-be-sold house with shovels and a pickax. Five years earlier, I’d marked his grave with three large stones. I quickly found them amid the brambles. We began to dig. We dug and dug. And dug. Then we widened our circle, convinced we had missed the mark. Soon we were coated in sweat and dirt. Our backyard looked like a major archaeological site. Where was he?

“That dog is still up to his old tricks,” Jenny said, and we both had to laugh, remembering what an escape artist he had been. As it turned out, I’d forgotten just how deeply I had buried him.

Eventually, we found his remains—still neatly packaged in the heavy black plastic we had buried him in—and carefully lifted them out of the ground. “You didn’t think we’d forget you, did you?” I said aloud.

Back at our new home, Jenny and I quickly settled on the perfect resting place: a bluff behind the barn overlooking a meadow filled with milkweed and Queen Anne’s lace. It was a spot where deer came each dawn to browse, and I knew Marley would have loved that.

I swung the pickax down hard. In the rocky clay, I had to fight for every inch. I worked steadily until I stood, grimy and out of breath, in a waist-deep hole. Jenny and I lowered him down. “We love you, Marley, and always will,” she said.

Alone, I finished up and finally wrestled a rock in place as a marker. Then I fell back beside it. “You’re home again, old friend,” I whispered, patting the earth. “With your family, right where you belong.” 



I have this intense sense of melancholy writing this and that fear of unknown future but I am so glad Marley is home.

Need a Resolution? Boycott Seafood

Great post, once again debunking the myth of "healthy" seafood (earlier post here).

"T
o summarize, the main reasons anyone should consider giving up seafood are:


EATING SEAFOOD IS NOT THAT HEALTHY.
EATING SEAFOOD HAS NEGATIVE ECOLOGICAL CONSEQUENCES.
TO EAT SEAFOOD IS TO EAT SOME OF THE PLANET'S LAST REMAINING WILDLIFE.
(Yet, despite this third fact, I was just reading this eye-opening article in Conservation Biology, which discusses the very few CITES listing of marine taxa-- in part because fisheries are not considered part of the wildlife trade)."

The culprit in decimating the biodiversity and perpetuating the suffering is our addiction to
umami. When they sequenced the genome of the "cute" Panda last year, they figured it has every traits to be an omnivorous but yet it eats only Bamboo shoots.

"
By parsing genes involved in the digestive process, the researchers found that, "the panda probably has all the necessary components for a carnivorous digestive system," the paper authors wrote, a finding that makes sense given its place in Carnivora and the Ursidae family. So, "the bamboo diet of the panda is unlikely to be dictated by its own genetic composition, and may instead be more dependent on its gut microbiome" for digestion, they concluded.

What, then, might draw a would-be meat-eater to faithfully devour such fibrous feasts? It might be a matter of taste, the researchers found. The lesser-known flavor profile umami, which is tasted in a common amino acid (glutamic acid), is aided by the presence of a number of T1R genes. In the panda's genetic map, the T1R1 gene appeared to not function, which "might prevent the panda from expressing a functional umami taste receptor," wrote the authors. Thus, the big bear might not share other carnivores' affinity for meaty, high-protein meals. "

What would it take to disable T1R genes in humans? I know, it's a parochial view of science and there could be too many implications but I wouldn't be surprised if someday this could end up being a fad.

Sunday, January 3, 2010

The Cove

After reading raving reviews, watched "The Cove".  It's not the right movie to watch few days into a new year but there cannot be a better time watch it. It's heart breaking watching what humans are capable of. If not for this documentary, we hardly would have realized the terror behind that fun and loving dolphin shows. It's obviously raises a question who are humans? Is it part human of nature to slaughter anything for food and dollars or those who risk their lives to save these creatures are humans? The glib talk of both have to co-exists gimmick cannot go on forever, there will be a day where we have to choose precisely what is to be human.  Until then we need such brave souls to keep the fire alive and there goes my trip to sea world until every nuances of their operations has been disclosed and for Japanese, there are better things that great civilization has to teach us that masquerading massacre in the name of "tradition". 






"Never underestimate the power of a small group of committed people to change the world. In fact, it is the only thing that ever has." - Margaret Mead

Saturday, January 2, 2010

Nassim Nicholas Taleb: A Crazier Future

Good dose of skepticism at the beginning of a new year from the Black Swan.



Benefits of opening oneself to new experiences & learning

Good thing that I got to listen to this talk now. Age 35 seems be the crucial cut-off age when we cut off ourselves to new experiences and start dwelling in a self-fullfiling comfortable nostalgic driven familiar world, missing out the wonders left to learn before kicking the bucket. My excuse for slowly cutting out novelty is being grossly satiated with changes. Being a chronic non-risk taker doesn't help either. I have to stop masquerading behind satiation and also understand the difference between learning and experience.
Robert Sapolsky in his own humorous style explains the importance:






"An open mind is a prerequisite to an open heart." Very true, no?

Friday, January 1, 2010

Happy New Year (Decade) !!

Three decades have passed and I wonder what is in store this decade?
This is Max's first new decade and cannot believe he will 4 this year!!
In a way, this my first new decade too after "grown up". 80's and 90's don't count much since was still under parents supervision and millennium overshadowed the significance of the last decade.

I hope to ingrain few things from The Meditations by Marcus Aurelius into the essence of me and whatever is in store, will try to reflect on it here - it feels good to rant here :-)

From Book one of The Meditations...

"FROM my grandfather Verus I learned good morals and the government of my temper.


From the reputation and remembrance of my father, modesty and a manly character.
From my mother, piety and beneficence, and abstinence, not only from evil deeds, but even from evil thoughts; and further, simplicity in my way of living, far removed from the habits of the rich.  From my great-grandfather, not to have frequented public schools, and to have had good teachers at home, and to know that on such things a man should spend liberally.
From my governor, to be neither of the green nor of the blue party at the games in the Circus, nor a partizan either of the Parmularius or the Scutarius at the gladiators’ fights; from him too I learned endurance of labour, and to want little, and to work with my own hands, and not to meddle with other people’s affairs, and not to be ready to listen to slander.
From Diognetus, not to busy myself about trifling things, and not to give credit to what was said by miracle-workers and jugglers about incantations and the driving away of daemons and such things; and not to breed quails for fighting, nor to give myself up passionately to such things; and to endure freedom of speech; and to have become intimate with philosophy; and to have been a hearer, first of Bacchius, then of Tandasis and Marcianus; and to have written dialogues in my youth; and to have desired a plank bed and skin, and whatever else of the kind belongs to the Grecian discipline.  
From Rusticus I received the impression that my character required improvement and discipline; and from him I learned not to be led astray to sophistic emulation, nor to writing on speculative matters, nor to delivering little hortatory orations, nor to showing myself off as a man who practises much discipline, or does benevolent acts in order to make a display; and to abstain from rhetoric, and poetry, and fine writing; and not to walk about in the house in my outdoor dress, nor to do other things of the kind; and to write my letters with simplicity, like the letter which Rusticus wrote from Sinuessa to my mother; and with respect to those who have offended me by words, or done me wrong, to be easily disposed to be pacified and reconciled, as soon as they have shown a readiness to be reconciled; and to read carefully, and not to be satisfied with a superficial understanding of a book; nor hastily to give my assent to those who talk overmuch; and I am indebted to him for being acquainted with the discourses of Epictetus, which he communicated to me out of his own collection.
From Apollonius I learned freedom of will and undeviating steadiness of purpose; and to look to nothing else, not even for a moment, except to reason; and to be always the same, in sharp pains, on the occasion of the loss of a child, and in long illness; and to see clearly in a living example that the same man can be both most resolute and yielding, and not peevish in giving his instruction; and to have had before my eyes a man who clearly considered his experience and his skill in expounding philosophical principles as the smallest of his merits; and from him I learned how to receive from friends what are esteemed favours, without being either humbled by them or letting them pass unnoticed.
From Sextus, a benevolent disposition, and the example of a family governed in a fatherly manner, and the idea of living conformably to nature; and gravity without affectation, and to look carefully after the interests of friends, and to tolerate ignorant persons, and those who form opinions without consideration: he had the power of readily accommodating himself to all, so that intercourse with him was more agreeable than any flattery; and at the same time he was most highly venerated by those who associated with him: and he had the faculty both of discovering and ordering, in an intelligent and methodical way, the principles necessary for life; and he never showed anger or any other passion, but was entirely free from passion, and also most affectionate; and he could express approbation without noisy display, and he possessed much knowledge without ostentation.  
From Alexander the grammarian, to refrain from fault-finding, and not in a reproachful way to chide those who uttered any barbarous or solecistic or strange-sounding expression; but dexterously to introduce the very expression which ought to have been used, and in the way of answer or giving confirmation, or joining in an inquiry about the thing itself, not about the word, or by some other fit suggestion.
From Fronto I learned to observe what envy, and duplicity, and hypocrisy are in a tyrant, and that generally those among us who are called Patricians are rather deficient in paternal affection.  From Alexander the Platonic, not frequently nor without necessity to say to any one, or to write in a letter, that I have no leisure; nor continually to excuse the neglect of duties required by our relation to those with whom we live, by alleging urgent occupations.  
From Catulus, not to be indifferent when a friend finds fault, even if he should find fault without reason, but to try to restore him to his usual disposition; and to be ready to speak well of teachers, as it is reported of Domitius and Athenodotus; and to love my children truly.
From my brother Severus, to love my kin, and to love truth, and to love justice; and through him I learned to know Thrasea, Helvidius, Cato, Dion, Brutus; and from him I received the idea of a polity in which there is the same law for all, a polity administered with regard to equal rights and equal freedom of speech, and the idea of a kingly government which respects most of all the freedom of the governed; I learned from him also consistency and undeviating steadiness in my regard for philosophy; and a disposition to do good, and to give to others readily, and to cherish good hopes, and to believe that I am loved by my friends; and in him I observed no concealment of his opinions with respect to those whom he condemned, and that his friends had no need to conjecture what he wished or did not wish, but it was quite plain.
From Maximus I learned self-government, and not to be led aside by anything; and cheerfulness in all circumstances, as well as in illness; and a just admixture in the moral character of sweetness and dignity, and to do what was set before me without complaining. I observed that everybody believed that he thought as he spoke, and that in all that he did he never had any bad intention; and he never showed amazement and surprise, and was never in a hurry, and never put off doing a thing, nor was perplexed nor dejected, nor did he ever laugh to disguise his vexation, nor, on the other hand, was he ever passionate or suspicious. He was accustomed to do acts of beneficence, and was ready to forgive, and was free from all falsehood; and he presented the appearance of a man who could not be diverted from right rather than of a man who had been improved. I observed, too, that no man could ever think that he was despised by Maximus, or ever venture to think himself a better man. He had also the art of being humorous in an agreeable way.
In my father I observed mildness of temper, and unchangeable resolution in the things which he had determined after due deliberation; and no vainglory in those things which men call honours; and a love of labour and perseverance; and a readiness to listen to those who had anything to propose for the common weal; and undeviating firmness in giving to every man according to his deserts; and a knowledge derived from experience of the occasions for vigorous action and for remission. And I observed that he had overcome all passion for boys; and he considered himself no more than any other citizen; and he released his friends from all obligation to sup with him or to attend him of necessity when he went abroad, and those who had failed to accompany him, by reason of any urgent circumstances, always found him the same. I observed too his habit of careful inquiry in all matters of deliberation, and his persistency, and that he never stopped his investigation through being satisfied with appearances which first present themselves; and that his disposition was to keep his friends, and not to be soon tired of them, nor yet to be extravagant in his affection; and to be satisfied on all occasions, and cheerful; and to foresee things a long way off, and to provide for the smallest without display; and to check immediately popular applause and all flattery; and to be ever watchful over the things which were necessary for the administration of the empire, and to be a good manager of the expenditure, and patiently to endure the blame which he got for such conduct; and he was neither superstitious with respect to the gods, nor did he court men by gifts or by trying to please them, or by flattering the populace; but he showed sobriety in all things and firmness, and never any mean thoughts or action, nor love of novelty. And the things which conduce in any way to the commodity of life, and of which fortune gives an abundant supply, he used without arrogance and without excusing himself; so that when he had them, he enjoyed them without affectation, and when he had them not, he did not want them. No one could ever say of him that he was either a sophist or a home-bred flippant slave or a pedant; but every one acknowledged him to be a man ripe, perfect, above flattery, able to manage his own and other men’s affairs. Besides this, he honoured those who were true philosophers, and he did not reproach those who pretended to be philosophers, nor yet was he easily led by them. He was also easy in conversation, and he made himself agreeable without any offensive affectation. He took a reasonable care of his body’s health, not as one who was greatly attached to life, nor out of regard to personal appearance, nor yet in a careless way, but so that, through his own attention, he very seldom stood in need of the physician’s art or of medicine or external applications. He was most ready to give way without envy to those who possessed any particular faculty, such as that of eloquence or knowledge of the law or of morals, or of anything else; and he gave them his help, that each might enjoy reputation according to his deserts; and he always acted conformably to the institutions of his country, without showing any affectation of doing so. Further, he was not fond of change nor unsteady, but he loved to stay in the same places, and to employ himself about the same things; and after his paroxysms of headache he came immediately fresh and vigorous to his usual occupations. His secrets were not but very few and very rare, and these only about public matters; and he showed prudence and economy in the exhibition of the public spectacles and the construction of public buildings, his donations to the people, and in such things, for he was a man who looked to what ought to be done, not to the reputation which is got by a man’s acts. He did not take the bath at unseasonable hours; he was not fond of building houses, nor curious about what he ate, nor about the texture and colour of his clothes, nor about the beauty of his slaves. His dress came from Lorium, his villa on the coast, and from Lanuvium generally. We know how he behaved to the toll-collector at Tusculum who asked his pardon; and such was all his behaviour. There was in him nothing harsh, nor implacable, nor violent, nor, as one may say, anything carried to the sweating point; but he examined all things severally, as if he had abundance of time, and without confusion, in an orderly way, vigorously and consistently. And that might be applied to him which is recorded of Socrates, that he was able both to abstain from, and to enjoy, those things which many are too weak to abstain from, and cannot enjoy without excess. But to be strong enough both to bear the one and to be sober in the other is the mark of a man who has a perfect and invincible soul, such as he showed in the illness of Maximus.  To the gods I am indebted for having good grandfathers, good parents, a good sister, good teachers, good associates, good kinsmen and friends, nearly everything good. Further, I owe it to the gods that I was not hurried into any offence against any of them, though I had a disposition which, if opportunity had offered, might have led me to do something of this kind; but, through their favour, there never was such a concurrence of circumstances as put me to the trial. Further, I am thankful to the gods that I was not longer brought up with my grandfather’s concubine, and that I preserved the flower of my youth, and that I did not make proof of my virility before the proper season, but even deferred the time; that I was subjected to a ruler and a father who was able to take away all pride from me, and to bring me to the knowledge that it is possible for a man to live in a palace without wanting either guards or embroidered dresses, or torches and statues, and such-like show; but that it is in such a man’s power to bring himself very near to the fashion of a private person, without being for this reason either meaner in thought, or more remiss in action, with respect to the things which must be done for the public interest in a manner that befits a ruler. I thank the gods for giving me such a brother, who was able by his moral character to rouse me to vigilance over myself, and who, at the same time, pleased me by his respect and affection; that my children have not been stupid nor deformed in body; that I did not make more proficiency in rhetoric, poetry, and the other studies, in which I should perhaps have been completely engaged, if I had seen that I was making progress in them; that I made haste to place those who brought me up in the station of honour, which they seemed to desire, without putting them off with hope of my doing it some time after, because they were then still young; that I knew Apollonius, Rusticus, Maximus; that I received clear and frequent impressions about living according to nature, and what kind of a life that is, so that, so far as depended on the gods, and their gifts, and help, and inspirations, nothing hindered me from forthwith living according to nature, though I still fall short of it through my own fault, and through not observing the admonitions of the gods, and, I may almost say, their direct instructions; that my body has held out so long in such a kind of life; that I never touched either Benedicta or Theodotus, and that, after having fallen into amatory passions, I was cured; and, though I was often out of humour with Rusticus, I never did anything of which I had occasion to repent; that, though it was my mother’s fate to die young, she spent the last years of her life with me; that, whenever I wished to help any man in his need, or on any other occasion, I was never told that I had not the means of doing it; and that to myself the same necessity never happened, to receive anything from another; that I have such a wife, so obedient, and so affectionate, and so simple; that I had abundance of good masters for my children; and that remedies have been shown to me by dreams, both others, and against bloodspitting and giddiness...; and that, when I had an inclination to philosophy, I did not fall into the hands of any sophist, and that I did not waste my time on writers of histories, or in the resolution of syllogisms, or occupy myself about the investigation of appearances in the heavens; for all these things require the help of the gods and fortune."