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:8/31/2020)... ... 2020 , ... Colorado State University Global (CSU Global) – ... education – is proud to announce its new master’s degree in Military ... in the nation, the 60-credit hour program is designed to provide students with ...
(Date:8/31/2020)... , ... August 31, 2020 , ... A Cure for Covid-19 “PTS” with Mediation & ... the planet are in a state of panic, experiencing deep anxiety, immense stress, and right ... a solution is timely when most people on the planet are experiencing a great degree ...
(Date:8/31/2020)... ... August 31, 2020 , ... Bonde Innovations, LLC, a venture-backed ... heart failure, today announced that the company has been awarded a Phase 1 ... National Heart, Lung, and Blood Institute of the National Institutes of Health (NIH). ...
(Date:8/28/2020)... ... August 28, 2020 , ... WHAT , ... treat patients with respiratory conditions, including COVID-19, while reducing the need for scarce ... it captures exhaled gas and scrubs it free of carbon dioxide in a ...
(Date:8/28/2020)... ... 28, 2020 , ... Integrated Viral Protection (IVP Air) today announced ... deploy its breakthrough Mobile Biodefense Indoor Air Protection System that is the first system ... to fully reopen equipped with the filtration system on September 8th. , The ...
Breaking Medicine News(10 mins):
(Date:8/27/2020)... N.C. (PRWEB) , ... August 27, 2020 , ... Bleep ... football player and sleep apnea patient, is the company’s new spokesperson. , “In my ... football field. So, when I found the Bleep DreamPort it was a Bleeping no ...
(Date:8/27/2020)... ... 2020 , ... The GHT Companies , a leading developer and distributor ... San Diego with a press conference at its manufacturing facility in Vista. ... $5,000.00+ representing an overall donation result exceeding $30,000 to Feeding San Diego, Who: ...
(Date:8/26/2020)... ... August 26, 2020 , ... ... Laboratory Testing division, expands its technology footprint with the addition of Novocyte ... available. With industry-leading biomarker solutions, complemented with traditional ligand-binding assays and study ...
Breaking Medicine Technology:
Cached News: