Ent�o leia isso...

---

THE NEW YORK TIMES

You There, at the Computer: Pay Attention
By KATIE HAFNER 
Published: February 10, 2005

FIRST, a confession. Since starting to write this article two hours ago, I have 
left my chair only once. But I have not been entirely present, either.

Each time I have encountered a thorny sentence construction or a tough 
transition, I have heard the siren call of distraction.

Shouldn't I fiddle with my Netflix queue, perhaps, or click on the weekend 
weather forecast? And there must be a friend having a birthday who would love 
to receive an e-card right now.

I have checked two e-mail accounts at least a dozen times each, and read eight 
messages. Only two were relevant to my task, but I responded right away to all 
of them. My sole act of self-discipline: both instant messaging accounts are 
turned off. For now.

This sorry litany is made only slightly less depressing when I remind myself 
that I have plenty of company.

Humans specialize in distraction, especially when the task at hand requires 
intellectual heavy lifting. All the usual "Is it lunchtime yet?" inner voices, 
and external interruptions like incoming phone calls, are alive and well.

But in the era of e-mail, instant messaging, Googling, e-commerce and iTunes, 
potential distractions while seated at a computer are not only ever-present but 
very enticing. Distracting oneself used to consist of sharpening a half-dozen 
pencils or lighting a cigarette. Today, there is a universe of diversions to 
buy, hear, watch and forward, which makes focusing on a task all the more 
challenging.

"It's so hard, because of the incredible possibilities we have that we've never 
had before, such as the Internet," said John Ratey, an associate professor at 
Harvard Medical School who specializes in attention problems. Dr. Ratey said 
that in deference to those who live with clinically diagnosed attention deficit 
disorder, he calls this phenomenon pseudo-A.D.D.

A growing number of computer scientists and psychologists are studying the 
problem of diminished attention. And some are beginning to work on solutions.

Ben Bederson, who builds computer interfaces at the University of Maryland, 
said his design goal is to generate a minimum of distraction for the user. 
"We're trying to come up with simple ideas of how computer interfaces get in 
the way of being able to concentrate," said Dr. Bederson, director of the 
Human-Computer Interaction Lab at the university.

When scrolling up and down a document on a computer screen, for instance, he 
said, some software causes the page to jump. It's an invitation to distraction, 
in that it requires the eye to reacquaint itself with the document in order to 
continue reading. To help people understand the importance of avoiding these 
kinds of jumpy interactions, Dr. Bederson showed that smooth scrolling was not 
only easier on the eye, but reduced the number of mistakes people make when, 
say, reading a document aloud. 

But some distractions don't need much of an invitation. Take e-mail, for 
instance. 

"It's in human nature to wonder whether you've got new mail," said Alon Halevy, 
a professor of computer science at the University of Washington who specializes 
in data management systems and artificial intelligence. "I don't think anything 
else is as compelling to divert attention."

Dr. Halevy and others talk about making e-mail intelligent so that it knows 
when to interrupt the user.

"Suppose you trusted your e-mail system enough that you're alerted to an e-mail 
only if it's really pertinent right now," Dr. Halevy said. "If I knew the right 
thing was happening with my e-mail, it wouldn't be such a distraction."

Dr. Halevy said this is a very difficult problem because it requires 
sophisticated natural language comprehension on the part of the software. 
"Completely solving the natural language problem is still decades away," he 
said, but "extracting useful information out of e-mail is a simpler instance 
that could make much faster progress."

Dr. Halevy is working on what he calls semantic e-mail, which provides some 
structure to the originating e-mail to make it easier for the software on the 
recipient's side to understand it and assign a priority.

Many people, even the experts, have devised their own stopgap solutions to the 
attention-span problem.

Dr. Bederson tries to read e-mail for only 15 minutes every hour. Dr. Halevy 
sets milestones for himself and breaks down a large task into small ones. "I 
say, O.K., I'll finish writing this paragraph, after which I let myself check 
e-mail, go browse the Web a little bit or make a cappuccino," he said. "If I 
insert enough resting points between the work, I'm much more motivated to go 
back to it."

Others might say, however, that Dr. Halevy's self-induced interruptions remove 
him from essential cognitive flow.

Dr. Bederson, Dr. Ratey and others often refer to the notion of flow, a concept 
coined by Mihaly Csikszentmihalyi, (pronounced CHICK-sent-me-hi-ee), professor 
of psychology at the Claremont Graduate University and the author of "Flow: The 
Psychology of Optimal Experience" (Perennial, 1991). Flow, in essence, is a 
state of deep cognitive engagement people achieve when performing an activity 
that demands a certain level of focus, like writing.

Mary Czerwinski, a cognitive psychologist who is a senior researcher at 
Microsoft, is studying the effect of interruptions on such deep cognitive 
immersion, with Dr. Bederson. "We're thinking that if you're deeply immersed in 
a flow state you'll be less amenable to a distraction from an incoming 
notification, much less likely to even know the notification came through," she 
said.

In related work, other Microsoft researchers are developing software that can 
learn to gauge where and how a computer user is directing attention, part of 
what they call the Attentional User Interface project.

One piece of software in development learns to assign a level of urgency to 
incoming e-mail messages while shielding people from messages they can see 
later - based on an assessment of how busy they are.

"We can detect when users are available for communication, or when the user is 
in a state of flow," said Eric Horvitz, a senior Microsoft researcher who 
directs the project.

For Edward Serotta, as for many other people, the problem is reaching that 
state of flow to begin with. Mr. Serotta is the director of Centropa 
(centropa.org), a group based in Vienna that has created a searchable online 
library of Jewish family photos, linked to oral histories. Part of his job 
consists of writing lengthy grant proposals, an unwelcome task at best.

For the past eight years, Mr. Serotta has used a laptop computer. "That means I 
can take my ability to dodge serious work everywhere," he said. "I really 
depend on small technical distractions to keep me away from the things I dread 
doing."

He is currently faced with creating a five-year master plan for his institute 
at the request of two potential funding sources. The continual checking of his 
e-mail is rivaled by the micromanagement of his iTunes. "I will certainly do 
what they ask, but that doesn't necessarily take precedence over figuring out 
whether I should list Stevie Winwood or Steve Winwood in my iTunes library," he 
said.

Mr. Serotta has four local weather services on his computer's desktop, all of 
which he watches like a hawk, even on days when he has no intention of leaving 
his office, which is down the hall from his apartment. "This is vitally 
important because one of them might be off by half a degree," he said. 

When Mr. Serotta does manage to find himself in the flow of writing, the 
stretches of time in which he is focused are what Dr. Czerwinski calls "key 
cognitive flow moments." Dr. Czerwinski's research group is working to identify 
the signals that such a moment has ended. "It could be hitting save," she said. 
"Or it could be the end of a Web search."

And this, Dr. Czerwinski said, would be a good time to allow a distraction in, 
like an e-mail notification. "Most software doesn't take your current cognitive 
state into account when it lets dialogue through," Dr. Czerwinski said.

But such predictive interfaces, as they are called, do not necessarily promise 
a cure for distraction, even for those more disciplined than Mr. Serotta, as 
they can be distractions unto themselves that throw the user off intellectual 
course.

"It is the very nature of predictive and adaptive interfaces that the user has 
to look at whatever the system is proposing and make a decision about whether 
they want to act on it," Dr. Bederson said. As an example, Dr. Bederson cited 
word-completion software, like the kind often found on cellphones. "It's a 
trade-off because you have to look at and evaluate each suggestion from the 
predictive interface," he said.

Dr. Bederson is also skeptical of a predictive interface's ability to know when 
the best time to interrupt might be. "That's very, very hard for a computer 
system to guess," he said. Hitting save, for instance, might be the start of a 
more reflective moment. "And that's the most important time to not interrupt," 
he said.

Dr. Csikszentmihalyi, the flow expert, believes interruptions have their place. 
"I shouldn't knock distraction completely, because it can be useful," he said. 
"It can clear the mind and give you a needed break from a very linear kind of 
thinking."

He continued, "E-mail could be a kind of intermittent relief from having to 
think about things that are not really that enjoyable, but when it becomes a 
habit so you can't do without it, then it becomes the tail that wags the dog, 
and it's a problem."

Peter S. Hecker, a corporate lawyer in San Francisco, said that when he hears 
the chiming alert of new e-mail, he forces himself to continue working for 30 
seconds before looking at it. Thirty seconds, mind you, not 30 minutes.

"Deep thought for a half-hour? Boy, that's hard," Mr. Hecker said. "Does anyone 
ever really have deep thoughts for half an hour anymore?"

---

http://www.nytimes.com/2005/02/10/technology/circuits/10info.html?th

---

- c.a.t.
  http://catalisando.com.br




------------------------ Yahoo! Groups Sponsor --------------------~--> 
Meet the McDonald�s� Lincoln Fry  get free digital souvenirs,
Web-only video and bid on the Lincoln Fry prop charity auction.
http://us.click.yahoo.com/U0ptCC/fV0JAA/Zx0JAA/vzIolB/TM
--------------------------------------------------------------------~-> 


�timo dia pra voc�.

<*> Para assinar a lista onde se comenta:
     [EMAIL PROTECTED]

<*> Para enviar um coment�rio:
     [email protected]
 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/goldenlist/

<*> To unsubscribe from this group, send an email to:
    [EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/
 



Responder a