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Negative Cognitive effects of Computer screens?

 
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Dry Lips



Joined: 12 Mar 2009
Posts: 21
Location: Norway

PostPosted: Thu Mar 12, 2009 10:08 am    Post subject: Negative Cognitive effects of Computer screens? Reply with quote

Does anyone know whether it is possible that watching a computer screen
triggers the orienting response, or alter the brainwaves in similar ways as television does?

Has there been done relevant research on this issue? I think I remember that Kubey was referring to research indicating that watching a blank television screen alter your brainwaves. If that is true, using a computer might also have similar effects.

Could animeded banners and fast shifting between different windows have negative cognitive effects, or perhaps the monitor technologi itself is accountable? Personally I sometimes feel a bit groggy when surfing the internet. Or perhaps it is just me. Any comments?
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TerryS



Joined: 16 Oct 2006
Posts: 139
Location: California

PostPosted: Mon Mar 16, 2009 3:26 am    Post subject: Orieing Response Reply with quote

Dry Lips wrote:

Quote:
"Does anyone know whether it is possible that
watching a computer screen triggers the orienting
response, or alter the brainwaves in similar
ways as television does?"


My understanding is that it is the "formal features"
of TV/movies such as camera cuts and zooms that
trigger the orienting response.

So the question would be, what is on the computer
screen? If the computer screen is just showing
text (no sound and no moving images) then the
orienting response would not be triggered and
the reader's brainwaves would be the same whether
they were reading the words off of the screen
or reading from a printed page.

On the other hand, if the computer screen was
showing a video, or a blog with a moving ad on it,
then the orienting response would be triggered.
The effects on the viewer's brainwaves would
depend on the frequency of the formal features.

This study found the following:

Quote:
"The results fully supported the proposition
that pop-up ads elicit orienting responses
"

http://crx.sagepub.com/cgi/content/abstract/31/5/537

Quote:
"Could animeded banners and fast shifting
between different windows have negative cognitive
effects, or perhaps the monitor technologi
itself is accountable?"


I love reading blogs, and when the annoying
moving ads show up, I do try to scroll down quickly
so as to avoid their distraction.

I think that if you frequent websites that have
a lot of pop-ups and/or moving ads, that your
orienting response will be more frequently
triggered (not to mention the annoyance factor).
But chances are that unless you are watching
videos or frequenting very irritating websites
filled with aggressive ads that the amount of
Orienting Responses (ORs) are still a lot less
than when watching television.

You might find this study about seniors
searching the internet encouraging:

http://www.cnn.com/2008/HEALTH/10/14/google.brain/index.html

Quote:
"Personally I sometimes feel a bit groggy when
surfing the internet. Or perhaps it is just me.
Any comments?"


I know that hours of reading will make me groggy,
and I'm feeling pretty groggy right now, but probably
because it's way past my bedtime.
Wink
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Dry Lips



Joined: 12 Mar 2009
Posts: 21
Location: Norway

PostPosted: Thu Mar 26, 2009 11:16 am    Post subject: Re: Orieing Response Reply with quote

TerryS wrote:


On the other hand, if the computer screen was
showing a video, or a blog with a moving ad on it,
then the orienting response would be triggered.
The effects on the viewer's brainwaves would
depend on the frequency of the formal features.


What about scrolling then? Couldn't scrolling be seen as the equivalent to formal features such as panning, zooming, etc. Normally one would scroll very often when using the internet, even when reading long documents.

Don't misunderstand me... I find the internet and computers helpful in many ways. On the other hand, its no doubt a double-edged sword, with a destructive potential as well as a constructive potential.

Thank you for the links, btw. That thing about pop-up ads really confirmed something I have long suspected.

I'll try to find the reference about the cognitive effects of blank television screens, that I referred to. I thought it was in Television Addiction Is No Mere Metaphor, by By Robert Kubey and Mihaly Csikszentmihalyi, but I didn't find it. It might be in one of their books.
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TerryS



Joined: 16 Oct 2006
Posts: 139
Location: California

PostPosted: Sat Mar 28, 2009 4:28 am    Post subject: Web Features Reply with quote

Hi Dry Lips

Quote:
"I find the internet and computers helpful in
many ways. On the other hand, its no doubt a
double-edged sword, with a destructive potential
as well as a constructive potential."


I certainly agree with you here. In the short
time that the internet has been around it has
transformed the world, for the better I think,
but also with a number of definite bad effects.

Quote:
"Thank you for the links, btw. That thing about
pop-up ads really confirmed something I have
long suspected."


I think that's why there are so many of these
moving ads, the neuromarketers have established
their effectiveness at *grabbing* our attention.
But marketers need to balance the value of the
grabbing effect versus the extreme annoyance
factor.

Quote:
"What about scrolling then? Couldn't scrolling
be seen as the equivalent to formal features
such as panning, zooming, etc. Normally one
would scroll very often when using the internet,
even when reading long documents."


Personally, I would think that scrolling would
not have the same effect as "formal features".
Both involve motion, but the scrolling involves
*expected* motion, while formal features involve
*unexpected* motion.

Athletes, when playing their sport, have to maintain
extreme focus to perform at the highest level.
Yet, when the gymnast does a flip, or a golf
player swings his club, the motion involved does
not break their concentration.

Consciously, when we are watching TV we are
expecting the formal features, so why would they
still trigger the orienting response?

I think that it is because our more primitive
part of the brain (where the orienting response
originates from) is designed to understand what
is normal reality. when what we see defies
normal reality (such as viewpoints instantaneously
moving around), then our primitive part of the
brain instantly takes notice.

Quote:
"I'll try to find the reference about the cognitive
effects of blank television screens"


I remember reading something about this a while
ago. My impression is that after scientists
discovered the brainwave slowing effect of
television, that there were various theories
as to why. One theory was that the flickering
of the blank screen was the cause.

My understanding is that it is the
formal features triggering the orienting response
theory which is the accepted theory right now:

From the textbook "The Neuropsychology of Everyday Life":

http://books.google.com/books?id=LsMgrGcJSHMC&pg=PA99&dq=eeg+everyday&sig=9vzN-AlwIX7MwWXEZLKbdiibP_s#PPA102,M1


On my brainwave page I compared the brainwaves
while watching TV with those while reading a novel.

http://www.tvsmarter.com/documents/brainwaves.html

Because of the extra motion involved with reading
from the web as opposed to reading a book, I think
that it would be worthwhile to compare the brainwaves
of reading a book with those while reading from a blog.
I'll try to do so over the next couple of weeks
and post the results.

And, of course, if anyone out there has access to
an EEG machine, please try the comparison for yourself
and post the results.

Cheers,

Terry
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Dry Lips



Joined: 12 Mar 2009
Posts: 21
Location: Norway

PostPosted: Tue Mar 31, 2009 7:03 am    Post subject: Re: Web Features Reply with quote

Yo Terry:

Here's the quote I was referring to:

"Weinstein, Appel, and Weinstein (1980) claimed that when subjects looked at a blank page versus a blank TV screen, the pattern of EEG rythms differed in much the same way as patterns elicited from printed and televised content.[...] For a literature review of the EEF see Rothschild et. al. (1986)." Television and the Quality of Life: How Viewing Shapes Everyday Experience By Robert Kubey and Mihaly Csikszentmihalyi, p.80

"But although it is normal for people to habituate and exhibit decreased responsiveness over time to such stimuli, in the case of television viewing, it seems that the reflex never reaches a state of complete habituation." - ibid, p.139


Quote:
Because of the extra motion involved with reading
from the web as opposed to reading a book, I think
that it would be worthwhile to compare the brainwaves
of reading a book with those while reading from a blog.
I'll try to do so over the next couple of weeks
and post the results.


That would definitively be helpful! Keep up the good work, mate!
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TerryS



Joined: 16 Oct 2006
Posts: 139
Location: California

PostPosted: Sat Aug 15, 2009 7:20 pm    Post subject: Moving Web Ads Reply with quote

Hi Dry Lips, here finally is my study
comparing breainwaves while reading a
novel compared to reading a blog, etc.
Sorry I took so long.

http://tvsmarter.wordpress.com/2009/07/30/moving-blog-ads/

(You can click on the link to see the screenshots
of the brainwave results.)

********************************


Dry Lips and I, on the Whitedot forum, have
been having a bit of a discussion on the
topic of moving blog ads.

http://www.mfbb.net/whitedotboard/viewtopic.php?t=8926

A study published in "Communication Research"
found the following:

"This study investigated the effects of pop-up
windows and animation on online users’ orienting
response and memory for Web advertisements...
The results fully supported the proposition
that pop-up ads elicit orienting responses."

http://crx.sagepub.com/cgi/content/abstract/31/5/537


Here are my brainwave study results comparing
the following:

1.Read: reading a novel

2.Blog: www.salon.com (no moving ads)

3.Ad: www.cbc.ca (few moving ads)

4.Ads: http://movies.msn.com (lots of moving ads)

5.guitar: Playing the guitar



The results show:

1.Read: reading a novel
Hi-Beta 2.90 Gamma 0.46

2.Blog: www.salon.com (no moving ads - with subscription)
Hi-Beta 2.09 Gamma 0.26

3.Ad: www.cbc.ca (few moving ads)
Hi-Beta 2.08 Gamma 0.25

4.Ads: http://movies.msn.com (lots of moving ads)
Hi-Beta 1.76 Gamma 0.19

5.guitar: Playing the guitar (just for the heck of it)
Hi-Beta 7.56 Gamma 2.86


But what about the effect of scrolling?

Dry Lips wrote:

"What about scrolling then? Couldn't scrolling be
seen as the equivalent to formal features such as
panning, zooming, etc. Normally one would scroll
very often when using the internet, even when reading
long documents."

I was skeptical, but it could very well be that he
is correct. There was a drop off in Hi-Beta and
Gamma waves comparing reading a novel with reading
salon.com (with no moving ads).

There was very little difference between the blog
with no moving ads (www.salon.com) and the blog
with few moving ads (www.cbc.ca).

And, of course as expected, the blog with lots
of moving ads (movies.msn.com) had a much larger
drop-off in Hi-Beta and Gamma brainwaves.

I wasn't surprised that the guitar playing led
to much higher levels of Hi-Beta and Gamma, but
I was surprised at how spectacularly fast the
brain waves become while playing the guitar.

As an aside, here is an interesting article
about web advertising, and how it is much less
effective than TV advertising:

http://www.useit.com/alertbox/9709a.html

And here are a couple of article about blocking webads:

http://www.slate.com/id/2218386/?obref=obinsite

http://www.tucows.com/article/1516


And thanks Dry Lips for inspiring this study!
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Dry Lips



Joined: 12 Mar 2009
Posts: 21
Location: Norway

PostPosted: Wed Sep 30, 2009 2:55 pm    Post subject: Good work! Reply with quote

I'm glad that you were able to complete the study! The results are very interesting, but I must admit that they in a way are quite disturbing. Even though I seldom use computers, it leads me to once again question my own use of computers. At the moment I try to limit my own use as much as possible.
However, I can't stop bugging you yet. (I don't know that many EEG-magicians around...) I would strongly urge you to do the "staring at a blank-screen vs staring-at-a-blank-wall-or-something-test" as well. It would give important clues as to whether it is something in the screen technology in itself that have mind altering properties, or not.

If we can nail down the monitor technology as the offender, I think we could envision a solution (more about that later.) What's important is that in order to remove the disease, we ought to know precisely where the tumor is located in order to prescribe a cure...
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TerryS



Joined: 16 Oct 2006
Posts: 139
Location: California

PostPosted: Sun Oct 04, 2009 8:02 am    Post subject: blank wall versus blank screen Reply with quote

Hi Dry Lips

Glad you found the results interesting.

At some point over the next few months, I do
want to do another study. So I'll make a point
of the including a section on:

- blank wall versus blank screen.

In addition to:

- fast TV (lot of cuts) versus slow TV (fewer cuts)


I'll be sure to post the results here.
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Dry Lips



Joined: 12 Mar 2009
Posts: 21
Location: Norway

PostPosted: Thu Oct 08, 2009 11:41 am    Post subject: Reply with quote

Quote:

The results show:

1.Read: reading a novel
Hi-Beta 2.90 Gamma 0.46

2.Blog: www.salon.com (no moving ads - with subscription)
Hi-Beta 2.09 Gamma 0.26

3.Ad: www.cbc.ca (few moving ads)
Hi-Beta 2.08 Gamma 0.25

4.Ads: http://movies.msn.com (lots of moving ads)
Hi-Beta 1.76 Gamma 0.19

5.guitar: Playing the guitar (just for the heck of it)
Hi-Beta 7.56 Gamma 2.86


Just to make the comparison complete I post the results of watching
television from your webpage:

Watching TV:
Beta: 1.49 Gamma: 0.24

http://www.tvsmarter.com/documents/brainwaves.html
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TerryS



Joined: 16 Oct 2006
Posts: 139
Location: California

PostPosted: Sat Oct 10, 2009 9:21 pm    Post subject: Brainwaves Reply with quote

Hi Dry Lips

After reading you post, I double-checked my brainwave
page and realized that I had made mistakes copying the
numbers (from the screen-captures) into the results table.

Here is the corrected results table:

________Drawing__Reading__Watching TV

Alpha:_____1.53____2.16_______1.43

Lobeta:____1.43____1.30_______1.24

Beta:______2.67____0.85_______0.98

Hibeta:_____4.61____4.50_______2.41

Gamma:____1.18____0.23_______0.06


Putting the blog results in a similar table:


_______________Novel_____Blog____Blog_____Blog________Guitar
_______________________no ads___few ads___many ads

Hibeta:_________2.90______2.02____2.08_____1.76_________7.56

Gamma:________0.46______0.26____0.25_____0.19_________2.86


The only activity that was the same for both experiments
was the novel reading. And you'll notice that the results are
not exactly the same. The reason for this is that results to
vary based on level of focus, which varied based on how
tired the subject is, and perhaps how interesting
the subject matter is.

For example I originally tried doing the 2nd experiment
in the evening, but my hubby was quite tired and
no matter what he was doing his brainwaves were
quite a bit slower than normal. Now, I know to
do such studies in the morning or afternoon.

P.s. to Dry Lips, the table is now corrected on the
brainwave pages, but I am really not happy with my
awful mistake, but I am very glad you posted your comment
or I might never have caught it.
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