Attenzione e Distrazione: spunti

Interessante articolo del NYMagazine sull’impatto che le nuove tecnologie hanno sull’attenzione e sulla modifica del modo di apprendere. Diversi spunti interessanti pro/con (in parte anche impliciti nel “Flow”  di Csikszentmihalyi ).

Back in 1971, when the web was still twenty years off and the smallest computers were the size of delivery vans, before the founders of Google had even managed to get themselves born, the polymath economist Herbert A. Simon wrote maybe the most concise possible description of our modern struggle: “What information consumes is rather obvious: It consumes the attention of its recipients. Hence a wealth of information creates a poverty of attention, and a need to allocate that attention efficiently among the overabundance of information sources that might consume it.”

…. Are we living through a crisis of attention?

Before I even have a chance to apologize, Meyer responds with the air of an Old Testament prophet. “Yes,” he says. “And I think it’s going to get a lot worse than people expect.” He sees our distraction as a full-blown epidemic—a cognitive plague that has the potential to wipe out an entire generation of focused and productive thought. He compares it, in fact, to smoking. “People aren’t aware what’s happening to their mental processes,” he says, “in the same way that people years ago couldn’t look into their lungs and see the residual deposits.”

…Over the last twenty years, Meyer and a host of other researchers have proved again and again that multitasking, at least as our culture has come to know and love and institutionalize it, is a myth. When you think you’re doing two things at once, you’re almost always just switching rapidly between them, leaking a little mental efficiency with every switch. Meyer says that this is because, to put it simply, the brain processes different kinds of information on a variety of separate “channels”—a language channel, a visual channel, an auditory channel, and so on—each of which can process only one stream of information at a time. If you overburden a channel, the brain becomes inefficient and mistake-prone.

The tech theorist Linda Stone famously coined the phrase “continuous partial attention” to describe our newly frazzled state of mind. American office workers don’t stick with any single task for more than a few minutes at a time; if left uninterrupted, they will most likely interrupt themselves. Since every interruption costs around 25 minutes of productivity, we spend nearly a third of our day recovering from them. We keep an average of eight windows open on our computer screens at one time and skip between them every twenty seconds. When we read online, we hardly even read at all—our eyes run down the page in an F pattern, scanning for keywords. When you add up all the leaks from these constant little switches, soon you’re hemorrhaging a dangerous amount of mental power. People who frequently check their e-mail have tested as less intelligent than people who are actually high on marijuana. Meyer guesses that the damage will take decades to understand, let alone fix.

…The ability to positively wield your attention comes off, in the book, as something of a panacea; Gallagher describes it as “the sine qua non of the quality of life and the key to improving virtually every aspect of your experience.” It is, in other words, the Holy Grail of self-help: the key to relationships and parenting and mood disorders and weight problems. (You can apparently lose seven pounds in a year through the sheer force of paying attention to your food.)

“You can’t be happy all the time,” Gallagher tells me, “but you can pretty much focus all the time. That’s about as good as it gets.”

The most promising solution to our attention problem, in Gallagher’s mind, is also the most ancient: meditation. Neuroscientists have become obsessed, in recent years, with Buddhists, whose attentional discipline can apparently confer all kinds of benefits even on non-Buddhists. (Some psychologists predict that, in the same way we go out for a jog now, in the future we’ll all do daily 20-to-30-minute “secular attentional workouts.”) Meditation can make your attention less “sticky,” able to notice images flashing by in such quick succession that regular brains would miss them. It has also been shown to elevate your mood, which can then recursively stoke your attention: Research shows that positive emotions cause your visual field to expand. The brains of Buddhist monks asked to meditate on “unconditional loving-kindness and compassion” show instant and remarkable changes: Their left prefrontal cortices (responsible for positive emotions) go into overdrive, they produce gamma waves 30 times more powerful than novice meditators, and their wave activity is coordinated in a way often seen in patients under anesthesia.

Gallagher stresses that because attention is a limited resource—one psychologist has calculated that we can attend to only 110 bits of information per second, or 173 billion bits in an average lifetime—our moment-by-moment choice of attentional targets determines, in a very real sense, the shape of our lives. Rapt’s epigraph comes from the psychologist and philosopher William James: “My experience is what I agree to attend to.” For Gallagher, everything comes down to that one big choice: investing your attention wisely or not.

. The Internet is basically a Skinner box engineered to tap right into our deepest mechanisms of addiction. As B. F. Skinner’s army of lever-pressing rats and pigeons taught us, the most irresistible reward schedule is not, counterintuitively, the one in which we’re rewarded constantly but something called “variable ratio schedule,” in which the rewards arrive at random. And that randomness is practically the Internet’s defining feature: It dispenses its never-ending little shots of positivity—a life-changing e-mail here, a funny YouTube video there—in gloriously unpredictable cycles. It seems unrealistic to expect people to spend all day clicking reward bars—searching the web, scanning the relevant blogs, checking e-mail to see if a co-worker has updated a project—and then just leave those distractions behind, as soon as they’re not strictly required, to engage in “healthy” things like books and ab crunches and undistracted deep conversations with neighbors. It would be like requiring employees to take a few hits of opium throughout the day, then being surprised when it becomes a problem.

…One of the weaknesses of lifehacking as a weapon in the war against distraction, Mann admits, is that it tends to become extremely distracting. You can spend solid days reading reviews of filing techniques and organizational software. “On the web, there’s a certain kind of encouragement to never ask yourself how much information you really need,” he says. “But when I get to the point where I’m seeking advice twelve hours a day on how to take a nap, or what kind of notebook to buy, I’m so far off the idea of lifehacks that it’s indistinguishable from where we started. There are a lot of people out there that find this a very sticky idea, and there’s very little advice right now to tell them that the only thing to do is action, and everything else is horseshit. My wife reminds me sometimes: ‘You have all the information you need to do something right now.’ ”

…It’s important to remember, however, that the most famous moment in all of Proust, the moment that launches the entire monumental project, is a moment of pure distraction: when the narrator, Marcel, eats a spoonful of tea-soaked madeleine and finds himself instantly transported back to the world of his childhood. Proust makes it clear that conscious focus could never have yielded such profound magic: Marcel has to abandon the constraints of what he calls “voluntary memory”—the kind of narrow, purpose-driven attention that Adderall, say, might have allowed him to harness—in order to get to the deeper truths available only by distraction. That famous cookie is a kind of hyperlink: a little blip that launches an associative cascade of a million other subjects. This sort of free-associative wandering is essential to the creative process; one moment of judicious unmindfulness can inspire thousands of hours of mindfulness.

My favorite focusing exercise comes from William James: Draw a dot on a piece of paper, then pay attention to it for as long as you can. (Sitting in my office one afternoon, with my monkey mind swinging busily across the lush rain forest of online distractions, I tried this with the closest dot in the vicinity: the bright-red mouse-nipple at the center of my laptop’s keyboard. I managed to stare at it for 30 minutes, with mixed results.) James argued that the human mind can’t actually focus on the dot, or any unchanging object, for more than a few seconds at a time: It’s too hungry for variety, surprise, the adventure of the unknown. It has to refresh its attention by continually finding new aspects of the dot to focus on: subtleties of its shape, its relationship to the edges of the paper, metaphorical associations (a fly, an eye, a hole). The exercise becomes a question less of pure unwavering focus than of your ability to organize distractions around a central point. The dot, in other words, becomes only the hub of your total dot-related distraction.

This is what the web-threatened punditry often fails to recognize: Focus is a paradox—it has distraction built into it. The two are symbiotic; they’re the systole and diastole of consciousness. Attention comes from the Latin “to stretch out” or “reach toward,” distraction from “to pull apart.” We need both. In their extreme forms, focus and attention may even circle back around and bleed into one other.

Mezzo secolo di fuoco

No, non e’ la storia di una torrida passione protrattasi a lungo tra i protagognisti…: e’ stato spento un incendio sotterraneo che durava da cinquant’anni, annidandosi tra depositi e gallerie di terreni con alte concentrazioni di carbone.
Riprendendo dalla fonte:

I danni causati da questi incendi sono soprattutto ambientali. Paul van Dijk dell’International Institute for Geo-Information Science and Earth Observation (Usa) ha stimato che gli incendi sotterranei al momento attivi in Cina immettono nell’atmosfera circa 360 milioni di tonnellate di anidride carbonica, un quantitativo pari alla metà di quanto viene emesso in un anno dalle automobili di tutti gli Stati Uniti e al 2/3 per cento delle emissioni globali di questo gas.


Ieri sera siamo andati a sentire la seconda lettura di Piergiorgio Odifreddi su Einstein, al Circolo dei Lettoriin via Bogino.

Siamo arrivati prima delle otto, ora in cui hanno distribuito i biglietti per l’accesso alla sala della conferenza: aperitivino veloce in via Po, e poi alle 2101 avvio della conversazione di Odifreddi. Conosce bene la materia, e la espone bene (la volta scorsa e’ riuscito a passare ad un pubblico prevalentemente umanista e anzianotto i principi della meccanica quantista) con un ritmo e battute che alla rigorosita’ del tema e della esposizione aggiungono sapore. Si vede che gli piace esibirsi, farsi piacere e ricerca l’ammirazione del pubblico. Poi sbraca (quasi in maniera compulsiva, anche se si e’ limitato rispetto alle apparizioni televisive o alle incursioni librarie) sul tema della religione. Ma si sa, la perfezione non e’ di questo mondo 😉


Bigottismi e follie d’altri tempi
E cosi’, dopo che in Italia nello scorso aprile la ministra Moratti aboli’ prima e reintrodusse poi i temi dell’evoluzionismo di Darwin nei programmi scolastici, stessa sorte si e’ verificata anche in Serbia agli insegnamenti scientifici.

Da credente, mi preoccupa questo stupido (come altro definirlo?) ritorno alla contrapposizione becera scienza / religione ..

It’s all hype

Sul sito BBC hanno intervistato il responsabile del progetto Seti riguardo alla news precedente sul segnale riconosciuto. La risposta It’s all hype. We don’t have anything we are excited about. raffredda le prime illazioni. Peccato…