Showing posts with label computer psychology. Show all posts
Showing posts with label computer psychology. Show all posts

Sunday, July 4, 2010

The Defense of Computers, the Internet and Our Brains

By NICK BILTON
The New York Times

If you’re reading this blog post on a computer, mobile phone or e-reader, please stop what you’re doing immediately. You could be making yourself stupid. And whatever you do, don’t click on the links in this post. They could distract you from the flow of my beautiful prose and narrative.
This is the alarm currently being rung by some in the bell towers of technology.

There is a lively discussion and some concern that computers, the Internet and multitasking are extracting a mental price.

Nicholas Carr argues in his book “The Shallows,” that the Internet, computers, Google, Twitter and the like, are making us into shallow thinkers and the neurocircuitry of our brain that long form reading creates is critical for society to function. Mr. Carr thinks that the Web, with its colored hypertext and endless abyss of bite-sized morsels of information, is making us stupid.
Charles Baldwin for The New York Times
Several studies show that video games and the Web stimulate areas of the brain associated with memory, hand and eye coordination and attention.

And although there are plenty of others in this camp, there are some who argue that not only are our brains just fine on the Internet, but they are indeed better off for it.

Steven Pinker, a cognitive scientist and professor of psychology at Harvard, argues on the Op-Ed page in Friday’s New York Times that the current outcry is nothing new. The same was heard, he writes, after the invention of the printing press, newspapers, paperbacks and television. Now, the fear stems from PowerPoint, search engines and Twitter.

Professor Pinker points out that our brains are intended to be rewired and learn new things. It’s the way we are built:

Critics of new media sometimes use science itself to press their case, citing research that shows how “experience can change the brain.” But cognitive neuroscientists roll their eyes at such talk. Yes, every time we learn a fact or skill the wiring of the brain changes; it’s not as if the information is stored in the pancreas. But the existence of neural plasticity does not mean the brain is a blob of clay pounded into shape by experience.

Jonah Lehrer, author of “How We Decide,” also argues that our brains are likely just fine on the Internet. Mr. Lehrer, a former neuroscientist, writes on his blog, The Frontal Cortex, that “given this paucity of evidence, I think it’s far too soon to be drawing firm conclusions about the negative effects of the Web.”

In a recent blog post Mr. Lehrer notes that the evidence critics use to attack the Web could be used to argue that we shouldn’t even walk down a city street as the cognitive load is far too great for our brains to handle. He notes that a in 2008, a group of scientists from the University of Michigan engaged in a study that showed walking led the brain to see a “dramatic decreases in working memory, self-control, visual attention and positive affect.” Mr Lehrer writes:

When people walk down the street, they are forced to exert cognitive control and top-down attention, and all that mental effort takes a temporary toll on their brain.

Based on this data, it would be easy to conclude that we should avoid the metropolis, that the city street is a hazardous place.

Then there is the reality that our brains, the tool that you, the reader, are currently using to decode these symbols and understand what they mean, has still not evolved to naturally learn to read: reading is an unnatural task that we still need to train our brains to learn.

Maryanne Wolf, the director of the Center for Reading and Language Research at Tufts, and author of “Proust and the Squid: The Story and Science of the Reading Brain,” notes that our brains were never actually designed to read. In a blog post last year on The Times blog, Room for Debate, Ms. Wolf wrote:

After many years of research on how the human brain learns to read, I came to an unsettlingly simple conclusion: We humans were never born to read. We learn to do so by an extraordinarily ingenuous ability to rearrange our “original parts” — like language and vision, both of which have genetic programs that unfold in fairly orderly fashion within any nurturant environment. Reading isn’t like that.

Ms. Wolf, who is concerned about the effects of the Web on children, recently explained in a phone interview that although our brains are not designed to read, the act and process children go through when decoding letters and narrative is an imperative part of a child’s development and thinking.

Ms. Wolf points out different media have value. “I’m not saying other mediums and technologies are not good for the brain, research shows that they are,” she said, “but we must understand the use of visual auditory narratives so we don’t neglect the role of the reading circuit.”

Research shows that each medium offers its own positive attributes: Neuroscience has shown that playing video games stimulates areas of our brains that control working memory, hand and eye coordination and attention and can stimulate and vastly improve our cognitive skills. Reading on the other hand promotes deep thought and exercises areas of the brain responsible for reflection, reasoning and critical analysis. And auditory storytelling stimulates areas of the brain involved with creativity, contextual thinking and executive function.

It could be argued that the Web, which is the ultimate library of words, video, images, interactivity, sharing and conversation, is the quintessential place to learn.
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Saturday, November 28, 2009

The psychology of the sign off

By David Babicz

The sign off is sometimes pursued and valued as though it were some kind of ancient idol. (The opening scene from Raiders of the Lost Ark comes to mind.) It's taken for granted that it's a necessary part of the processes we use to produce product. But what does the sign off really mean? When you get that signature on the document (or give yours), what is the sign off saying and what are the expectations of both parties going forward?

Webster's online dictionary defines "sign off" as:

to approve or acknowledge something by or as if by a signature

Hey, that sounds pretty innocuous. I showed you something, or did something for you, and you're just signing a piece of paper that says you saw it, or I did it. But of course, the benign nature of that thought belies the social complexities and implications of what that signature really means.

On one level, it's an issue of trust. Why do you need my signature? Isn't it enough that I told you verbally that it's fine? If we worked in a world of implicit trust, that might be OK. But if you're the one looking for that signature from a manager or client, and heard that question, what are the chances you would respond "yes, sure, it's fine?" I say the chances are slim and none. If you could take it on verbal approval, then chances are:

1. The decision or deliverable in question is very minor,
2. Your organization is extremely small (and likely with a very flat organizational hierarchy), and/or
3. You really DO work in an organization with a model of implicit trust (this is rare if (2) is not true).

So if we don't trust each other enough to take everything on verbal approval, the question is why not? What are we afraid will happen if something goes wrong?

In THAT question lies the core issue. It's not what happens when everything goes well ... when the product is delivered on time, on budget, free of defects. At that point, everyone is happy, and someone throws a party. Maybe the only person unhappy with the lack of formal sign off in that situation is the person whose job it is to make sure all the boxes were checked for process' sake.

But when things DO go wrong -- major defects make it into production ("QA is the problem"), business owners or customers report that product features aren't what they wanted ("Requirements are the problem") or delivery is very late or well over budget ("OK, who did it?") -- THAT is when the true nature of the formal sign off shows. That's when fingers get pointed and people dive for cover ... behind the sign off.

I submit that at its core, the formal sign off serves mainly as an abdication of responsibility for a deliverable, or transference of that responsibility to the signatory.

This is why people are so apprehensive to sign off. Because at worst, by signing, the signatory puts him/her self on the hook for the deliverable on which they've just signed off. They've accepted responsibility for something they've likely had no hand in producing, but for which they have to answer. And when things go wrong, they'll be left holding the bag. This is an issue of the culture of the process.

Imagine a large river being fed by several small streams. At the point where each stream feeds into the main river, there's a lock. Water flows from each stream into the main river, but once it's contributed a certain amount, the lock closes. When a storm hits at the mouth of the river, and water is pushed back upstream, the locks are closed and the streams are protected, but the main river (and its surrounding banks) is devastated. This is a metaphor for the classic sign off when things go wrong, and the real tragedy is that in this model, nobody is responsible for the successful delivery of the product (except maybe the last signatory). Everyone else has plausible deniability. If you're contributing to the product, and something goes wrong because of your work, but someone else signed off on it, you can make a case that you're not responsible because they accepted both your work product and the responsibility when they signed off. It doesn't mean they won't try to pin it on you, but in the spirit of legal documents, you hold up the paper and say "I have your signature right here. You said it was correct and authorized it."

Now, contrast this with the model we use in Agile, specifically Scrum. We take a cross functional team, combine that with a business Product Owner and a Scrum Master, and emphasize that together they are the team, together they are collectively responsible for the successful delivery (or failure) of the product. We move away from the silo mentality that fosters people protecting their camp (or stream) at the expense of the product. We move to putting the product first, by ensuring that the product owner is prioritizing the product backlog to ensure we're working on the items with the highest business value first, in every iteration. And we emphasize continuous, open communication on the team.

Don't misunderstand me. I'm not saying that Agile or Scrum is some magic bullet to avoid the contentious atmosphere that the traditional sign off can foster. Is it possible to poison an Agile development effort by sticking to the old psychology of the sign off? Absolutely. What I am saying is that it provides a framework that can encourage the cultural change that is necessary to change that atmosphere. It's not in our nature and it's not easy ... it takes a willingness by the parties involved to give up the protection of the sign off, and sign up for shared success or failure. Implement this cultural shift in your team or organization, however, and trust and a shared sense of ownership of the product will cement the team together, stronger than the sum of its parts.

David Babicz is a Senior Consultant with Solstice Consulting, based out of Chicago. Dave has over 12 years of experience delivering IT solutions. He is a Certified Scrum Master, and expert in Agile methodologies.
Reference: blogs.computerworld.com
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