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:3/29/2017)... ... March 29, 2017 , ... Curio Wellness , a premium medical cannabis ... the company’s executive management team with prominent executives from both inside and outside the ... Operating Officer, Ted Dumbauld , who has more than twenty years of business ...
(Date:3/29/2017)... ... March 29, 2017 , ... Immunotherapy has emerged as one of the ... is touted to be the next revolution in our fight against this complex disease. ... form of immune checkpoint inhibitors such as PD-1 and PD-L1 inhibitors. , While a ...
(Date:3/29/2017)... ... ... The Wharton School of the University of Pennsylvania is pleased to announce that ... gift to establish the Ken Moelis and Julie Taffet Moelis Advance Access Program ... for highly-qualified Penn undergraduates whose academic and career interests expand traditional notions of business ...
(Date:3/28/2017)... Angeles, CA (PRWEB) , ... March 28, 2017 , ... ... call” asking the American public to take the Diabetes Risk Test to find out ... event, the Los Angeles World Airports will light up the evening sky by programming ...
(Date:3/28/2017)... (PRWEB) , ... March 28, 2017 , ... ... (MRE), is pleased to be invited to the Siemens Healthineers annual customer education ... The event will take place from March 27 - 31, 2017 at ...
Breaking Medicine News(10 mins):
(Date:3/29/2017)... -- Research and Markets has announced the addition ... report to their offering. ... The global orthopedic navigation system ... Increasing geriatric population prone to orthopedic diseases is a key ... the forecast period. Osteoarthritis and osteoporosis are most common disorders ...
(Date:3/29/2017)... Mar 29, 2017  Providence Medical Technology, Inc., ... addition of two industry veterans to the commercial ... the company to lead Global Marketing, and ... Mr. Lynch and Mr. Scott have over 40 ... Mr. Lynch joins the company with over 22 ...
(Date:3/29/2017)... 29, 2017  The leader in accelerated orthodontics, OrthoAccel ... Sam Daher , Manal Ibrahim , Kenji ... will be the featured microlecture presenters at the AcceleDent ... of Orthodontists (AAO) Annual Session, April 21-25, 2017. Orthodontists ... beginning daily at 11:20 a.m. On the opening morning ...
Breaking Medicine Technology: