[ RadSafe ] Cell phone exposure increases brain cell activity

[Brennan, Mike (DOH)]

But that might not generate the answer they want!  

-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Cary Renquist
Sent: Tuesday, March 01, 2011 1:53 PM
To: The International Radiation Protection (Health Physics) MailingList
Subject: Re: [ RadSafe ] Cell phone exposure increases brain cell
activity


I read it over the weekend -- let's see what I can recall...
No talking in the study.
Strapped a phone to each side of the head and then called one of the
phones for half of the participants (phones were set to auto-answer
silently).
They always called the phone on the ?right? side of the head.  
They allowed the phone to transmit for 20 minutes.
The positives were not blind to the researchers.

They didn't measure the heat generated (I know that my phone gets pretty
warm during a several minute conversation).
Even in silent mode, there might be audible noise of some sort.

They should really repeat the experiment with just antennae near each
side with truly random and blind activation of the signal.

Best regards,
Cary

---
Cary Renquist
cary.renquist at ezag.com

-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Doug Huffman
Sent: Tuesday, 01 March 2011 13:25
To: radsafe at health.phys.iit.edu
Subject: Re: [ RadSafe ] Cell phone exposure increases brain cell
activity

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Hash: SHA1

The brain is fMRI 'activated' by talking, even sub-vocalizing.

http://www.rad.msu.edu/DNN/Default.aspx?tabid=458
USING fMRI TO COMPARE TALKING ALOUD TO "THE LITTLE VOICE IN THE HEAD"

SUMMARY

Vocalization-induced motion artifact has limited the ability to apply
fMRI to speech production. We describe a set of techniques for motion
reduction, detection, and correction intended to remove these artifacts
from cortical activation during overt speech. We combined these
techniques with Event-Related fMRI to compare overt speech with silent
speech, focusing on Broca?s area and its right-hemisphere homologue plus
two inferior regions of left and right primary motor cortex as regions
of interest

Unfortunately, evidently, not by communicating on the internet.

On 3/1/2011 15:04, Dixon, John E. (CDC/ONDIEH/NCEH) wrote:
> Excellent point Glenn. I would like to see all of the research related
to this project. It could very well be that the "results" could be the
result of the brain working the way it is supposed to work - cell phone
or not.
> 
> Regards,
> John
> 
> -----Original Message-----
> From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Glenn R.
Marshall
> Sent: Wednesday, February 23, 2011 9:54 AM
> To: The International Radiation Protection (Health Physics) Mailing
List
> Subject: Re: [ RadSafe ] Cell phone exposure increases brain cell
activity
> 
> 
> Just a thought:  The study was done while people were talking on their
cell phones.  I can't help wondering if the brain is similarly
stimulated when talking on a regular phone....
>  
> Glenn Marshall
>  
> -----Original Message-----
> From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Boby Mathew
> Sent: Wednesday, February 23, 2011 9:48 AM
> To: The International Radiation Protection (Health Physics) Mailing
List
> Subject: [ RadSafe ] Cell phone exposure increases brain cell activity
> 
> 
>
http://www.cnn.com/2011/HEALTH/02/22/cell.phone.brain.activity/index.htm
l?hpt=T2
> 
> 
> 
> (CNN) -- The radiation emitted after just 50 minutes on a mobile phone
increases the activity in brain cells, according to a new
government-funded study.
> The effects of that brain activity are not known, said the
researchers, who called for more study.
> Phones that were turned off did not create the same brain activity.
> The small study, published in the Journal of American Medical
Association, is the first to look specifically at how electromagnetic
radiation from cell phones affects glucose metabolism, a normal
function, in the brain.
> "When glucose metabolism goes up, it activates cells. The findings are
an indication that exposure to cell phones activate the brain much more
easily than we previously thought," said Dr. Nora Volkow, National
Institutes of Health neuroscientist and lead study author. 
>  
>  
>  
> Boby Mathew
> 
> 
>       
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