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:10/13/2017)... ... October 13, 2017 , ... PurhealthRX , a leading Health and ... Applying the Purzorb™process to full spectrum CBD oil will revolutionize the rapidly growing CBD ... that can be easily incorporated into liquid products, while reducing costs to end users. ...
(Date:10/13/2017)... OBISPO, Calif. (PRWEB) , ... October 13, 2017 , ... ... or dementia. However, many long-term care insurance companies have a waiver for care if ... the 90-day elimination period, when the family pays for care, is often waived, so ...
(Date:10/13/2017)... Texas (PRWEB) , ... October 13, 2017 , ... Yisrayl ... this week that explains one of the most popular and least understood books in ... like cryptic and puzzling descriptions that have baffled scholars for centuries. Many have tossed ...
(Date:10/13/2017)... ... October 13, 2017 , ... “America On The Brink”: the ... “America On The Brink” is the creation of published author, William Nowers. Captain ... As a WWII veteran, he spent thirty years in the Navy. Following his ...
(Date:10/12/2017)... (PRWEB) , ... October 12, 2017 , ... ... products to meet the demand of today’s consumer and regulatory authorities worldwide. From ... probiotic experts and tested to meet the highest standard. , These products ...
Breaking Medicine News(10 mins):
(Date:9/25/2017)... Sept. 25, 2017   Montrium , an ... solutions, today—from the IQPC Trial Master Files & ... NL)—announced that EastHORN Clinical Services has selected ... and TMF management. EastHORN, a leading European contract ... to increase transparency to enable greater collaboration with ...
(Date:9/19/2017)... medical device company developing a non-invasive, robotically assisted, platform therapy that uses pulsed sound energy ... ... Jim Bertolina, PhD ... Tom Tefft ... executive Josh Stopek , PhD, who has led R&D and business development teams at ...
(Date:9/12/2017)... , Sept. 12, 2017   EcoVadis , the leading platform for ... the first annual edition of its Global CSR Risk and Performance Index. ... by EcoVadis, based on Scorecard Ratings that analyzed nearly 800,000 data points ... ... ...
Breaking Medicine Technology:
Cached News: