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:
TAG: Who the liar Brain MRI stands polygraph test

(Date:4/24/2015)... E-Factor Diet claims to be a diet that ... allows people to enjoy food as rapid weight loss results ... Stevenson, prompting an investigative review. , “Our E-Factor Diet ... Jared used to lose weight, and all the information about ... This is a diet for people who are trying to ...
(Date:4/24/2015)... Keona Health has announced that Wake Internal ... triage in order to further its mission to provide ... it. , Keona Health allows front-line, non-clinical staff to ... question about a prescription refill or a complicated concern. ... first time they call, and practices enforce a standard ...
(Date:4/24/2015)... 2015 A group of Southern Americans will ... a group of young Chinese for two weeks from July ... Americans and Chinese will be challenged to avoid conflicts due ... are going to be required to function as one team, ... in the Chinese language and Kung Fu martial arts as ...
(Date:4/23/2015)... (PRWEB) April 23, 2015 Fitnet , ... trainers, and now, an accurate calorie counter during video exercise, ... Living and Health and Fitness categories in the Apple Watch ... Jane Fonda of the Digital age," now allows clients to ... is the only third party app providing accurate calorie burn ...
(Date:4/23/2015)... When a company is looking to expand ... the number of clients they are able to reach. Almost ... emails that are meant to grab attention, peak interest, and ... sure to be a hit with both existing customer bases ... the power of email is used to introduce a product, ...
Breaking Medicine News(10 mins):Health News:E-Factor Diet: Review Examining John Rowley’s Brand New Weight Loss Program Released 2Health News:Keona Health Expands to Internal Medicine 2Health News:Inside China: Americans Travel to Heartland of China to Live & Learn with Local Chinese 2Health News:Inside China: Americans Travel to Heartland of China to Live & Learn with Local Chinese 3Health News:Fitnet Handpicked as Top Healthy Living App in Apple Watch Store 2Health News:Fitnet Handpicked as Top Healthy Living App in Apple Watch Store 3Health News:Markit Media Now Offers Email Marketing Campaign Service to Help Build Business 2
(Date:4/23/2015)... April 23, 2015 Once again, BeaconMedaes is ... commitment to patient safety. BeaconMedaes, priority is ... infectious disease. The next generation Zone Valve ... sensors are now mounted in the assembly, allowing for ... open ceiling tiles potentially releasing dust spores and other ...
(Date:4/23/2015)... Nektar Therapeutics (Nasdaq: NKTR ) will announce ... 2015 on Thursday, April 30, 2015, after the close of ... executive officer, will host a conference call to review the ... Time (PT). The press release and a ... through a link that is posted on the home page ...
(Date:4/23/2015)... Denmark , April 23, 2015  DanDrit ... Biotech USA , Inc. ("DanDrit"), ... develop an approved vaccine for the treatment of ... Company Riyadh Pharma have signed a partnership agreement ... This collaboration agreement advances DanDrit,s goal to ...
Breaking Medicine Technology:BeaconMedaes launches new Zone Valve Box Assembly 2Nektar to Announce Financial Results for the First Quarter 2015 on Thursday, April 30, 2015, After Close of U.S.-Based Financial Markets 2DanDrit Biotech and Riyadh Pharma Sign Partnership Agreement 2
Cached News: