Feeds

Cellphone exposure linked to changes in brain activity

Handset radiation can alter brain function

Secure remote control for conventional and virtual desktops

US researchers have shown that less than an hour of cellphone use can significantly speed up activity in the part of the brain closest to the handset antenna, a finding that could reignite the debate over the health effects of radiation emitted by the ubiquitous devices.

In a study published on Wednesday in the Journal of the American Medical Association, and reported by The New York Times, researchers from the National Institutes of Health found that just 50 minutes of cellphone use was accompanied by a seven-per-cent increase in activity in the part of the brain closest to the antenna.

Researchers said the increase was unlikely to be associated with heat from the handset because the activity occurred near the antenna, rather than where the phone touched the head. The scientists also discounted the likelihood of auditory stimulation from the phone. Each of the 47 study participants were subjected to two separate exposures, one with the cellphones turned off and the other with the muted phone receiving a call from a recorded message.

As the subjects touched the phones to their ears, they underwent PET, or positron emission tomography, scans, which measure brain glucose metabolism, a marker of brain activity.

“The study is important because it documents that the human brain is sensitive to the electromagnetic radiation that is emitted by cellphones,” Dr. Nora D. Volkow, director of the National Institute on Drug Abuse, told the NYT. “It also highlights the importance of doing studies to address the question of whether there are – or are not – long-lasting consequences of repeated stimulation, of getting exposed over five, 10 or 15 years.”

The study is among the first and biggest to document that the weak radio frequency signals from handsets have the potential to change brain function. ®

Providing a secure and efficient Helpdesk

More from The Register

next story
TEEN RAMPAGE: Kids in iPhone 6 'Will it bend' YouTube 'prank'
iPhones bent in Norwich? As if the place wasn't weird enough
George Clooney, WikiLeaks' lawyer wife hand out burner phones to wedding guests
Day 4: 'News'-papers STILL rammed with Clooney nuptials
iPAD-FONDLING fanboi sparks SECURITY ALERT at Sydney airport
Breaches screening rules cos Apple SCREEN ROOLZ, ok?
Crouching tiger, FAST ASLEEP dragon: Smugglers can't shift iPhone 6s
China's grey market reports 'sluggish' sales of Apple mobe
Apple's new iPhone 6 vulnerable to last year's TouchID fingerprint hack
But unsophisticated thieves need not attempt this trick
The British Museum plonks digital bricks on world of Minecraft
Institution confirms it's cool with joining the blocky universe
How the FLAC do I tell MP3s from lossless audio?
Can you hear the difference? Can anyone?
prev story

Whitepapers

Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
The next step in data security
With recent increased privacy concerns and computers becoming more powerful, the chance of hackers being able to crack smaller-sized RSA keys increases.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.