HOME >> MEDICINE >> NEWS
Who's the liar? Brain MRI stands up to polygraph test

Traditional polygraph tests to determine whether someone is lying may take a back seat to functional magnetic resonance imaging (fMRI), according to a study appearing in the February issue of Radiology. Researchers from Temple University Hospital in Philadelphia used fMRI to show how specific areas of the brain light up when a person tells a lie.

"We have detected areas of the brain activated by deception and truth-telling by using a method that is verifiable against the current gold standard method of lie detection--the conventional polygraph," said lead author Feroze B. Mohamed, Ph.D., Associate Professor of Radiology at Temple.

Dr. Mohamed explained how the standard polygraph test has failed to produce consistently reliable results, largely because it relies on outward manifestations of certain emotions that people feel when lying. These manifestations, including increased perspiration, changing body positions and subtle facial expressions, while natural, can be suppressed by a large enough number of people that the accuracy and consistency of the polygraph results are compromised.

"Since brain activation is arguably less susceptible to being controlled by an individual, our research will hopefully eliminate the shortcomings of the conventional polygraph test and produce a new method of objective lie detection that can be used reliably in a courtroom or other setting," Dr. Mohamed said.

Dr. Mohamed and colleagues recruited 11 healthy subjects for the study. A mock shooting was staged, in which blank bullets were fired in a testing room. Five volunteers were asked to tell the truth when asked a series of questions about their involvement, and six were asked to deliberately lie. Each volunteer was examined with fMRI to observe brain activation while they answered questions either truthfully or deceptively. They also underwent a conventional polygraph test, where respiration, cardiovascular activity and perspiration responses were mon
'"/>

Contact: Heather Babiar
hbabiar@rsna.org
630-590-7762
Radiological Society of North America
31-Jan-2006


Page: 1 2

Related medicine news :

1. Whos vCJD case definition should be revised
2. Whos available to help in times of crisis and disaster?
3. Brain-boosting pill alleviates post-chemotherapy fogginess
4. Brain inflammation may be friend, not foe, for Alzheimers patients
5. Brain activity reflects differences in types of anxiety
6. Brain research poised to dramatically advance global society
7. Elsevier announces launch of Brain Stimulation
8. Brains scans of symptomatic Gulf War veterans show differences
9. Brain structure changes years before memory loss begins
10. Brain studies reveal the mechanisms of the voluntary control of visual attention
11. Brains can recover from alcoholic damage but patients should stop drinking as soon as possible

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/26/2016)... ... May 26, 2016 , ... The MIAMI Institute for ... guest speaker Dr. Adonis Maiquez MD, ABAARM. Dr. Adonis , Wellness Physician of ... and a member of the Institute for Functional Medicine. , He also heads up ...
(Date:5/26/2016)... ... 26, 2016 , ... Bunion Bootie , the manufacturer of the newest ... than humbled by customer demand over the Mother’s Day Weekend promotion. So much so, ... Bunion Bootie has completely replenished its inventory levels, it hopes to continue its current ...
(Date:5/26/2016)... Redwood City, CA (PRWEB) , ... May 26, 2016 , ... ... time, Silicon Valley-based startup, The Dough Bar, has ignited an undeniable buzz ... shake -- a doughnut. But not just any doughnut.  These doughnuts are packed with ...
(Date:5/26/2016)... ... May 26, 2016 , ... ... . With over 20 years of experience in leading technology and human resources ... years of university teaching, Morrow-Fox will be featured on Metcalf’s VoiceAmerica radio ...
(Date:5/26/2016)... ... May 26, 2016 , ... Dr. LeRoy Perry’s recently authored ... of mobile devices on the billions of users, hundreds of millions of whom are ... not life threatening, the frequent and common action of looking down at hand-held technology ...
Breaking Medicine News(10 mins):
(Date:5/24/2016)... KONG , May 24, 2016 /PRNewswire/ ... COMBO ™ , la première ... des cathéters destinés à l,intervention portant sur ... (FAV)   OrbusNeich, entreprise mondiale ... permettant de changer la vie, a élargi ...
(Date:5/24/2016)... 2016 Dutch surgeons have launched a ground-breaking ... world and treat patients on a global scale. Medical professionals from ... Asia and the US have already signed up ... networking in a totally secure environment. Education  ... working together with a surgeon at Harvard to treat a bomb ...
(Date:5/23/2016)... India , May 23, 2016 ... report "Patient Handling Equipment Market by Product (Wheelchair, ... of Care (Bariatric Care, Critical Care, Wound), Accessories ... - Forecast to 2021", published by MarketsandMarkets, the ... USD 17.18 Billion by 2021 at a CAGR ...
Breaking Medicine Technology:
Cached News: