Navigation Links
Brain Quickly Detects Happiness in Others

Study finds people perceive positive expressions more accurately than sad ones

MONDAY, July 6 (HealthDay News) -- When it comes to picking up emotional signals from others, the brain responds to happiness faster than sadness, a new study has found.

Researchers at the University of Barcelona in Spain zeroed in on the right cerebral hemisphere as the brain's center for processing emotional signals from other people. Not only does the right hemisphere process emotions faster than the left hemisphere, it's particularly eager when it comes to happy vibes, they found.

"Positive expressions, or expressions of approach, are perceived more quickly and more precisely than negative or withdrawal ones," study author J. Antonio Aznar-Casanova told a Spanish science news service. "So, happiness and surprise are processed faster than sadness and fear."

The researchers tested 80 psychology students -- 65 women and 15 men -- using the "divided visual field" technique to determine which hemisphere processes the information faster. The study is part of a growing body of research into the brain's asymmetry and how the two hemispheres are able to get a reasonably accurate first impression of people's social signals after seeing their faces for only a tenth of a second.

Scientists are settling on two theories. One theory puts much of the emotional processing workload, both positive and negative, on the right hemisphere. The other theory -- known as the approach-withdrawal hypothesis -- suggests that both hemispheres play a part, with the left one better at crunching negative data.

Determining how people make value judgments based on first impressions is important in many areas of society, said Aznar-Casanova, adding that "these inferences can strongly influence election results or the sentences given in trials."

The findings are reported in the third issue this year of the journal Laterality: Asymmetries of Body, Brain and Cognition.

More information

The U.S. National Institute of Neurological Disorders and Stroke has more on the brain.

-- Peter West

SOURCE: News release, Plataforma SINC, June 17, 2009

Copyright©2009 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Fish Fuels Young Mens Brains
2. Odd Behaviors on Ambien Linked to Brain Circuitry
3. 6th Annual Neurosurgery Charity Softball Tournament Hits It Out of the Park For Pediatric Brain Tumor Research Fund
4. Study identifies biomarker that safely monitors tumor response to new brain cancer treatment
5. Brain section multitasks, handling phonetics and decision-making
6. Mayo Clinic Proceedings reviews deep brain stimulation to treat psychiatric diseases
7. Real-Time Control of Wheelchairs with Brain Waves
8. Smoking May Trigger Brain Damage
9. Grab a Tool and Change Your Brain
10. Tiny levels of carbon monoxide damage fetal brain
11. Forsyth Medical Center's Derrick L. Davis Forsyth Regional Cancer Center to Take Part in Research Trial for Patients with Fast-Growing Brain Tumors
Post Your Comments:
Related Image:
Brain Quickly Detects Happiness in Others
(Date:6/26/2016)... ... June 27, 2016 , ... Quality metrics are proliferating in cancer ... they remain in the eye of the beholder, according to experts who offered insights ... American Journal of Managed Care. For the full issue, click here . , ...
(Date:6/26/2016)... ... 26, 2016 , ... PawPaws brand pet supplements owned by Whole ... enhance the health of felines. The formula is all-natural and is made from Chinese ... PawPaws Cat Kidney Support Supplement Soft Chews are Astragalus Root Extract and ...
(Date:6/25/2016)... ... June 25, 2016 , ... Experts from the ... AcademyHealth’s Annual Research Meeting June 26-28, 2016, at the Hynes Convention Center in ... topics including advance care planning, healthcare costs and patient and family engagement. , ...
(Date:6/25/2016)... ... June 25, 2016 , ... "With 30 hand-drawn hand gesture ... said Christina Austin - CEO of Pixel Film Studios. , ProHand Cartoon’s package ... Final Cut Pro X . Simply select a ProHand generator and drag it ...
(Date:6/25/2016)... ... June 25, 2016 , ... Dr. Calvin ... injury. Recently, he has implemented orthobiologic procedures as a method for treating his ... of the first doctors to perform the treatment. Orthobiologics are substances that orthopaedic ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... PARK RIDGE, Ill. and INDIANAPOLIS ... caliber of students receiving a Lilly Diabetes Tomorrow,s Leaders ... hands. The 2016 scholarship winners, announced today online at ... refused to let type 1 diabetes stand in the ... Lilly Diabetes has supported the Foundation,s scholarship program since ...
(Date:6/23/2016)...  Guerbet announced today that it has been named ... . One of 12 suppliers to receive ... support of Premier members through exceptional local customer service ... to lower costs. ... outstanding customer service from Premier," says Massimo Carrara ...
(Date:6/23/2016)... Tenn. , June 23, 2016 /PRNewswire/ ... automating, integrating and transforming the patient payment ... of several innovative new products and services ... of its revenue cycle offerings. These award-winning ... more efficient workflows, remain compliant in an ...
Breaking Medicine Technology: