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:1/18/2017)... ... January 18, 2017 , ... PrideStaff, ... Vice President of Franchise Development, Paula Turner Pizarro, was recently featured on Fox ... features the insights of top business leaders from across the globe, provides viewers ...
(Date:1/18/2017)... ... January 18, 2017 , ... Dr. Farhan Qureshi is ... and implants dentistry. His modern dental practice has two convenient office locations in Alexandria ... Top Rated Dentist for the Alexandria area. This award confirms the fact ...
(Date:1/18/2017)... (PRWEB) , ... January 18, 2017 , ... ... of the revolutionary Active Brake Technology (ABT), an innovative braking system that allows ... Active Brake Technology addresses one of the biggest concerns of beginner and intermediate ...
(Date:1/17/2017)... ... January 17, 2017 , ... Anesthesia Progress – Everyone ... choose the best drug option for each patient. Dentists have several general anesthesia alternatives ... outcomes. , Researchers from the Tokyo Dental College in Tokyo, Japan wanted to find ...
(Date:1/17/2017)... , ... January 17, 2017 , ... ... the political/social/economic events, Dr. Carol Francis re-releases powerfully uplifting interview with medical expert ... that help everyone endure and pass through tough times, Dr. Bernie Siegel energizes ...
Breaking Medicine News(10 mins):
(Date:1/18/2017)...  Tarix Orphan LLC today announced that the U.S. ... Disease (RPD) designation for the company,s drug candidate TXA127 ... a rare genetic skin disorder. There are currently no ... supportive care. "The RPD designation for TXA127 ... by the FDA in this indication," said Richard ...
(Date:1/18/2017)... -- After the recent election cycle, it is ... both for medical and recreational purposes are shifting. The evidence ... use of cannabis, but the focus is coming from both ... the North American legal cannabis market posted $6.7 billion in ... research projects sales will grow at a compound annual growth ...
(Date:1/18/2017)... Chinese Food and Drug Administration CSL CureVac ... Food and Drug Administration FORT Fresenius Pharmaceuticals ... Smith Klein GlaxoWellcome Global Influenza Programme ... Immune Targeting Systems Indian Association of Paediatrics ... & Johnson Krka Pharmaceuticals Medicago Medicare ...
Breaking Medicine Technology:
Cached News: