Featured Research

from universities, journals, and other organizations

Mobile Phones Affect Memory In Laboratory Animals, Swedish Study Finds

Date:
December 5, 2008
Source:
Lund University
Summary:
Can radiation from cell phones affect memory? Yes -- at least it appears to do so in one series of rat experiments conducted in Sweden. Researchers studied rats that were exposed to mobile phone radiation for two hours a week for more than a year. These rats had poorer results on a memory test than rats that had not been exposed to radiation.

Can radiation from cell phones affect the memory?
Credit: iStockphoto/Karen Town

Can radiation from cell phones affect the memory? Yes -- at least it appears to do so in rat experiments conducted at the Division of Neurosurgery, Lund University, in Sweden. Henrietta Nittby studied rats that were exposed to mobile phone radiation for two hours a week for more than a year. These rats had poorer results on a memory test than rats that had not been exposed to radiation.

The memory test consisted of releasing the rats in a box with four objects mounted in it. These objects were different on the two occasions, and the placement of the objects was different from one time to the other.

The actual test trial was the third occasion. This time the rats encountered two of the objects from the first and two of the objects from the second occasion. The control rats spent more time exploring the objects from the first occasion, which were more interesting since the rats had not seen them for some time. The experiment rats, on the other hand, evinced less pronounced differences in interest.

Henrietta Nittby and her, supervisor Professor Leif Salford, believe that the findings may be related to the team's earlier findings, that is, that microwave radiation from cell phones can affect the so-called blood-brain barrier. This is a barrier that protects the brain by preventing substances circulating in the blood from penetrating into the brain tissue and damaging nerve cells. Leif Salford and his associates have previously found that albumin, a protein that functions as a transport molecule in the blood, leaks into brain tissue when laboratory animals are exposed to mobile phone radiation.

The research team also found certain nerve damage in the form of damaged nerve cells in the cerebral cortex and in the hippocampus, the memory center of the brain. Albumin leakage occurs directly after radiation, while the nerve damage occurs only later, after four to eight weeks. Moreover, they have discovered alterations in the activity of a large number of genes, not in individual genes but in groups that are functionally related.

"We now see that things happen to the brains of lab animals after cell phone radiation. The next step is to try to understand why this happens," says Henrietta Nittby.

She has a cell phone herself, but never holds it to her ear, using hands-free equipment instead.


Story Source:

The above story is based on materials provided by Lund University. Note: Materials may be edited for content and length.


Cite This Page:

Lund University. "Mobile Phones Affect Memory In Laboratory Animals, Swedish Study Finds." ScienceDaily. ScienceDaily, 5 December 2008. <www.sciencedaily.com/releases/2008/12/081205095956.htm>.
Lund University. (2008, December 5). Mobile Phones Affect Memory In Laboratory Animals, Swedish Study Finds. ScienceDaily. Retrieved April 20, 2014 from www.sciencedaily.com/releases/2008/12/081205095956.htm
Lund University. "Mobile Phones Affect Memory In Laboratory Animals, Swedish Study Finds." ScienceDaily. www.sciencedaily.com/releases/2008/12/081205095956.htm (accessed April 20, 2014).

Share This



More Computers & Math News

Sunday, April 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Nintendo Changed Gaming World, but Its Future Uncertain: Upstone

Nintendo Changed Gaming World, but Its Future Uncertain: Upstone

AFP (Apr. 19, 2014) The Nintendo Game Boy celebrates its 25th anniversary Monday and game expert Stephen Upstone says the console can be credited with creating a trend towards handheld gaming devices. Duration: 01:21 Video provided by AFP
Powered by NewsLook.com
Nearly Two Weeks On, The Internet Copes With Heartbleed

Nearly Two Weeks On, The Internet Copes With Heartbleed

Newsy (Apr. 19, 2014) The Internet is taking important steps in patching the vulnerabilities Heartbleed highlighted, but those preventive measures carry their own costs. Video provided by Newsy
Powered by NewsLook.com
Facebook To Share Nearby Friends Data With Advertisers

Facebook To Share Nearby Friends Data With Advertisers

Newsy (Apr. 19, 2014) A Facebook spokesperson has confirmed the company will use GPS data from the new Nearby Friends feature for advertising sometime in the future. Video provided by Newsy
Powered by NewsLook.com
Man Claims He Found Loch Ness Monster With... Apple Maps?

Man Claims He Found Loch Ness Monster With... Apple Maps?

Newsy (Apr. 18, 2014) Andy Dixon showed the Daily Mail a screenshot of what he believes to be the mythical beast swimming just below the lake's surface. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins