Wireless Electrical and Electromagnetic Pollution News
8 September 2010
How the Internet is making us stupid
Nicholas Carr, author of The Shallows, asks if the Internet is changing the way we think.
But our dependence on the internet has a dark side. A growing body of scientific evidence suggests that the net, with its constant distractions and interruptions, is turning us into scattered and superficial thinkers.
I've been studying this research for the past three years, in the course of writing my new book The Shallows: How the Internet Is Changing the Way We Think, Read and Remember. But my interest in the subject is not just academic. It's personal. I was inspired to write the book after I realised that I was losing my own capacity for concentration and contemplation. Even when I was away from my computer, my mind seemed hungry for constant stimulation, for quick hits of information. I felt perpetually distracted.
Could my loss of focus be a result of all the time I've spent online? In search of an answer to that question, I began to dig into the many psychological, behavioural, and neurological studies that examine how the tools we use to think with our information technologies shape our habits of mind.
The picture that emerges is troubling, at least to anyone who values the subtlety, rather than just the speed, of human thought. People who read text studded with links, the studies show, comprehend less than those who read words printed on pages. People who watch busy multimedia presentations remember less than those who take in information in a more sedate and focused manner. People who are continually distracted by emails, updates and other messages understand less than those who are able to concentrate. And people who juggle many tasks are often less creative and less productive than those who do one thing at a time.
The common thread in these disabilities is the division of attention. The richness of our thoughts, our memories and even our personalities hinges on our ability to focus the mind and sustain concentration. Only when we pay close attention to a new piece of information are we able to associate it "meaningfully and systematically with knowledge already well established in memory", writes the Nobel Prize-winning neuroscientist Eric Kandel. Such associations are essential to mastering complex concepts and thinking critically.
When we're constantly distracted and interrupted, as we tend to be when looking at the screens of our computers and mobile phones, our brains can't to forge the strong and expansive neural connections that give distinctiveness and depth to our thinking. Our thoughts become disjointed, our memories weak. The Roman philosopher Seneca may have put it best 2,000 years ago: "To be everywhere is to be nowhere."
In an article in Science last year, Patricia Greenfield, a developmental psychologist who runs UCLA's Children's Digital Media Center, reviewed dozens of studies on how different media technologies influence our cognitive abilities. Some of the studies indicated that certain computer tasks, like playing video games, increase the speed at which people can shift their focus among icons and other images on screens. Other studies, however, found that such rapid shifts in focus, even if performed adeptly, result in less rigorous and "more automatic" thinking.
In one experiment at a US university, half a class of students was allowed to use internet-connected laptops during a lecture, while the other had to keep their computers shut. Those who browsed the web performed much worse on a subsequent test of how well they retained the lecture's content. Earlier experiments revealed that as the number of links in an online document goes up, reading comprehension falls, and as more types of information are placed on a screen, we remember less of what we see.
Greenfield concluded that "every medium develops some cognitive skills at the expense of others". Our growing use of screen-based media, she said, has strengthened visual-spatial intelligence, which can strengthen the ability to do jobs that involve keeping track of lots of rapidly changing signals, like piloting a plane or monitoring a patient during surgery. But that has been accompanied by "new weaknesses in higher-order cognitive processes," including "abstract vocabulary, mindfulness, reflection, inductive problem solving, critical thinking, and imagination." We're becoming, in a word, shallower.
Studies of our behaviour online support this conclusion. German researchers found that web browsers usually spend less than 10 seconds looking at a page. Even people doing academic research online tend to "bounce" rapidly between different documents, rarely reading more than a page or two, according to a University College London study.
Such mental juggling takes a big toll. In a recent experiment at Stanford University, researchers gave various cognitive tests to 49 people who do a lot of media multitasking and 52 people who multitask much less frequently. The heavy multitaskers performed poorly on all the tests. They were more easily distracted, had less control over their attention, and were much less able to distinguish important information from trivia.
The researchers were surprised by the results. They expected the intensive multitaskers to have gained some mental advantages. But that wasn't the case. In fact, the multitaskers weren't even good at multitasking. "Everything distracts them," said Clifford Nass, one of the researchers.
It would be one thing if the ill effects went away as soon as we turned off our computers and mobiles. But they don't. The cellular structure of the human brain, scientists have discovered, adapts readily to the tools we use to find, store and share information. By changing our habits of mind, each new technology strengthens certain neural pathways and weakens others. The alterations shape the way we think even when we're not using the technology.
The pioneering neuroscientist Michael Merzenich believes our brains are being "massively remodelled" by our ever-intensifying use of the web and related media. In the 1970s and 1980s, Mr Merzenich, now a professor emeritus at the University of California in San Francisco, conducted a famous series of experiments that revealed how extensively and quickly neural circuits change in response to experience. In a conversation late last year, he said that he was profoundly worried about the cognitive consequences of the constant distractions and interruptions the internet bombards us with. The long-term effect on the quality of our intellectual lives, he said, could be "deadly".
Not all distractions are bad. As most of us know, if we concentrate too intensively on a tough problem, we can get stuck in a mental rut. But if we let the problem sit unattended for a time, we often return to it with a fresh perspective and a burst of creativity. Research by the Dutch psychologist Ap Dijksterhuis indicates that such breaks in our attention give our unconscious mind time to grapple with a problem, bringing to bear information and cognitive processes unavailable to conscious deliberation. We usually make better decisions, his experiments reveal, if we shift our attention away from a mental challenge for a time.
But Dijksterhuis's work also shows that our unconscious thought processes don't engage with a problem until we've clearly and consciously defined the problem. If we don't have a particular goal in mind, he writes, "unconscious thought does not occur."
The constant distractedness that the net encouragesthe state of being, to borrow a phrase from T S Eliot, "distracted from distraction by distraction" is very different from the kind of temporary, purposeful diversion of our mind that refreshes our thinking. The cacophony of stimuli short-circuits both conscious and unconscious thought, preventing our minds from thinking either deeply or creatively. Our brains turn into simple signal-processing units, shepherding information into consciousness and then back out again.
What we seem to be sacrificing in our surfing and searching is our capacity to engage in the quieter, attentive modes of thought that underpin contemplation, reflection and introspection. The web never encourages us to slow down. It keeps us in a state of perpetual mental locomotion. The rise of social networks like Facebook and Twitter, which pump out streams of brief messages, has only exacerbated the problem.
There's nothing wrong with absorbing information quickly and in bits and pieces. We've always skimmed newspapers more than we've read them, and we routinely run our eyes over books and magazines to get the gist of a piece of writing and decide whether it warrants more thorough reading. The ability to scan and browse is as important as the ability to read deeply and think attentively. What's disturbing is that skimming is becoming our dominant mode of thought. Once a means to an end, a way to identify information for further study, it's becoming an end in itself our preferred method of both learning and analysis. Dazzled by the net's treasures, we have been blind to the damage we may be doing to our intellectual lives and even our culture.
Director, Public Health Protection and Prevention,
Ministry of Health and Long-Term Care
Further to my previous correspondence, the media has begun to quote
Health and Safety Managers, that Dr. Arlene King's public statement on
the safety of WiFi is "false and misleading".
This quote from Dr. David Fancy, PhD. Department Head Brock
University, member of the institution's Health and Safety Committee.
Reported today in the Simcoe County press.
"Our directive was that all staff and faculty should know there is a lot
of controversy and nothing conclusive that says it's safe. A year
later, I'm looking at what I consider to be false and misleading
statements from (Ontario's chief medical officer of health) Dr. Arlene
full story is here:
As I understand it Dr. Fancy's Health and Safety Committee had
the Health Canada documents a year ago, that conclude the blood brain
barrier weakness caused by low-level microwave exposure, especially in
Since you also have the evidence this is true, can you please
reissue the statement to caution parents that biological changes are
known to occur from microwaves emitted by WiFi devices in schools.
I understand there are complexities in your job, but I'm not sure
what could possibly be more important than giving parents full and
accurate information that their children are being exposued to a
device in school that can change their biology in ways that are
associated with risks to their health.
They are in fact unwittingly exposing their children under
misleading guidance from Ontario's CMOH. The little children have no
voice in this. They have been failed by all levels of government, and
the entirety of the system that is established to ensure their safety.
Their parents can make any decision they want, but they must first be
offered the full truth from our top doctor.
Simcoe County Safe School committee
Do your homework on Wi-Fi: professor
SIMCOE COUNTY - A Brock University dramatic arts professor has added his voice to the chorus of those calling for Wi-Fi transmitters to be turned off in schools.
This week, David Fancy who chairs the dramatic arts department said while he served on the university's health and safety committee, he and others read enough journals to be concerned about the microwave transmitters. They convinced the committee to issue a warning in 2009.
"The committee felt, at best, Health Canada's assertions in Safety Code 6 are questionable. It's a fluid field and people should pursue finding more information (about wireless exposure)," the former health and safety committee member said in an interview.
"Our directive was all staff and faculty should know there is a lot of controversy and nothing conclusive that says it's safe. A year later, I'm looking at what I consider to be false and misleading statements from (Ontario's chief medical officer of health) Dr. Arlene King."
The wireless debate began almost a year ago when parents from Mountain View Public School in Collingwood urged the board to power down the transmitters, because their children were experiencing a variety of symptoms, including headaches and nausea.
Two weeks ago, King said people need to turn to the scientific literature, as well as World Health Organization guidelines. In April, University of Toronto physicist and public health professor Dr. Tony Muc reassured the Simcoe County District School Board wireless waves at the length used in Wi-Fi do not interfere with the human body, as opposed to X-rays and other ionizing radiation.
Two weeks ago, the Elementary Teachers Federation of Ontario voted down a motion from the Niagara teachers' local chapter asking ETFO to lobby school boards to turn off wireless.
Wireless is a key part of the SCDSB's technology strategic plan, noted superintendent John Dance, because it increases accessibility for students, as well as enhances opportunities for in-class group work. Computer labs are on their way out, he noted, with elementary teachers booking the laptop cart so students can work wirelessly on a project.
The SCDSB board also referred the parents' concerns to the provincial ministers of health and education, who also reassured the board wireless is safe.
However, Fancy said the Brock University committee, which included management representatives, unanimously agreed the issue warranted a warning.
"As the head of the theatre department, I have a managerial role. I have moved people's offices away from wireless nodes when they complained about headaches. It was a concern that emerged," he said.
"We have to be very methodical. When you see a pattern and regular people are feeling better because you made a simple change, it's an indication there's something there, especially when you look at the literature."
People need to do their own reading, he said.
"I've been to Health Canada. There's not enough evidence."
"Other constituencies internationally are ahead of us on this," he added. "They've taken wireless out of the national library in France in out of schools in Britain."
To sign up for WEEP News: firstname.lastname@example.org (provide name and e-mail address)
W.E.E.P. The Canadian initiative to stop Wireless Electrical and Electromagnetic Pollution