Navigation Links
Fleeting Facial Expressions Reveal Deep Secrets
Date:4/25/2008

Study finding could help experts determine who's lying and who's telling the truth

FRIDAY, April 25 (HealthDay News) -- They say the eyes are a window into the soul, but scientists have been reporting for some time now that "microexpressions" -- lightning-fast, almost imperceptible facial expressions -- tell the real story of what people are thinking.

Now, new research suggests that people have a lot more trouble hiding their emotions than they think.

Canadian researchers found that every one of 41 college students suffered from "emotional leakage," the inability to hide their true feelings when asked to falsify their facial expressions. Some let their emotions out through subconscious expressions that lasted longer than microexpressions.

The findings suggest that "the face has enormous potential to reveal concealed and falsified emotions," said study co-author Leanne ten Brinke, a graduate student in experimental psychology at Dalhousie University in Halifax, Nova Scotia.

"Because the face is less controllable than other aspects of our non-verbal behavior, it is likely particularly important to lie detection," ten Brinke said.

Still, the researchers found that it's difficult even for trained experts to figure out when someone is hiding how they truly feel.

Microexpressions -- defined as lasting between 1/25th and 1/5th of a second -- have gotten attention in the media in recent years, but the study authors said there hasn't been extensive research into their existence. In the new study, published in the May issue of the journal Psychological Science, the study authors tried to coax unconscious expressions out of college students participating in the research project.

The participants -- 35 females and six males -- watched a series of images, with some designed to elicit an emotion from the viewer, such as happiness (puppies playing) or disgust (a severed hand). Some images (like a picture of a truck) were designed to elicit a neutral response.

The researchers videotaped the participants and their reactions, compiled images of about 700 emotional expressions, and assigned "coders" to examine about 100,000 frames.

"While our research did detect several microexpressions, leakage of unintended emotions typically lasted longer," ten Brinke said. "We found that when a lying participant's face revealed unintended emotions, it typically lasted for closer to a second but usually only occurred in either the upper or lower face."

Dr. Daniel Langleben, an assistant professor of psychiatry at the University of Pennsylvania, said brief and revealing but unconscious facial expressions do appear to be a real phenomenon, although it's difficult for people to detect them. Computers, he said, may do a better job.

"A computer that looks [at a face] using facial-recognition software doesn't care if it's red, black, white or green or whether it reminds you of your grandmother or if the face is ugly or pretty," he said.

Ten Brinke said the next step is to create research that better reflects real life by studying emotional deceptions that could have serious consequences.

The Canadian researchers have collected about 60 videotaped appeals from family members pleading to the public for the return of their missing relatives. In about half of the cases, the people in the videotapes actually killed the relatives, she said.

"We will be examining the faces of these individuals for cues to deceit in this real-life context," ten Brinke said.

More information

Learn more about facial expressions from Carnegie Mellon University.



SOURCES: Leanne ten Brinke, B.Sc., graduate student, Dalhousie University, Halifax, Nova Scotia, Canada; Daniel Langleben, M.D., assistant professor of psychiatry, University of Pennsylvania, Philadelphia; May 2008, Psychological Science


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Dr. Edmund Kwan to Speak on Facial Contouring Among Asian Patients at Cosmetic Surgery Seminar
2. Oral and Maxillofacial Surgeons Raise Awareness About the Importance of Facial Protection
3. Body identification by facial reconstruction will cost less time and money
4. African Americans Show Facial Aging in Eyes Earlier Than Caucasians
5. Facial asymmetry persists despite surgery to correct congenital deformity
6. Breakthrough Acai Berry Anti-Aging Facial Applies Benefits of Natures Super-Food to the Skin
7. New Technology and Improved Techniques Arm Dermatologists With Tools to Minimize Facial Scars From Skin Cancer Surgery
8. Facial Deformity Danger?
9. Facial expressions have greater impact on kids with bipolar disorder
10. In-the-Field Facial Surgery Helps Injured Troops in Iraq
11. People with Epilepsy Encouraged to Submit Artwork as Part of National Expressions of Courage(R) Art Contest
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/21/2017)... ... July 21, 2017 , ... Sharon ... the signature product of her research center at Bio-Logic Aqua Research® Water Life ... and the greatest number of sufferers of blindness. “We think that Nature’s Tears® ...
(Date:7/21/2017)... ... July 21, 2017 , ... ... rates are on the rise, say researchers presenting their work at the ... Canada. , “The combination of evaluating the patterns of change in concussion symptom ...
(Date:7/20/2017)... 20, 2017 (PRWEB) , ... ... ... a global provider of enterprise-grade IT operations analytics and application performance monitoring ... one of world’s largest healthcare services providers. , According to Peter Ohrenberger, ...
(Date:7/20/2017)... ... ... Team Type 1 Foundation, a nonprofit organization pursuing a global mission of ... up with a Microsoft Corp. employee-led hackathon team for the 2017 Microsoft One Week ... Type 1’s mission overlaps seamlessly with Microsoft’s mission to empower every person and every ...
(Date:7/20/2017)... ... July 20, 2017 , ... ... FDAnews Webinar**, Aug. 9, 2017 — 1:30 p.m. – 3:00 p.m. ET, ... inspections and boosting quality. , It’s known as the “CY2016 Annual FDA Medical ...
Breaking Medicine News(10 mins):
(Date:7/11/2017)... SARASOTA, Fla. , July 11, 2017  Dr. Echenberg, founder of ... Dilator therapy program to patients who suffer from painful intercourse and other ... vaginismus and vaginal atrophy due to menopause. ... VuVatech LLC ... Dilators , created by Sarasota, Florida -based start-up company, ...
(Date:7/10/2017)... , July 10, 2017  US medical equipment and ... 2021, according to Medical Equipment & Supplies: ... Freedonia Focus Reports. Continued increases in demand for medical ... of the population and supported by gains in disposable ... and supplies. New product introductions will also drive sales ...
(Date:7/10/2017)... 2017  BDI Group subsidiary Pathway Purchasing Network, ... organization serving specialty pharmacies, home infusion companies and ... significant, value-added member programs designed to help organizations ... and improve access and affordability for patients who ... Pathway has worked ...
Breaking Medicine Technology: