Navigation Links
Why we fight: Men check out in stressful situations
Date:9/28/2010

A new study by USC researchers reveals that stressed men looking at angry faces had diminished activity in the brain regions responsible for understanding others' feelings.

Turns out the silent and stoic response to stress might be a guy thing after all.

"These are the first findings to indicate that sex differences in the effects of stress on social behavior extend to one of the most basic social transactions processing someone else's facial expression," said Mara Mather, director of the Emotion and Cognition Lab at USC.

In an article appearing the October 6 issue of the journal NeuroReport, Mather and her coauthors present a series of tests indicating that, under acute stress, men had less brain response to facial expressions, in particular, fear and anger.

In both men and women, looking at pictures of faces caused activity in the part of the brain used in basic visual processing (the "fusiform face area") and in parts of the brain used for interpreting and understanding facial expressions.

However, men under acute stress showed decreased activity not only in the fusiform face area but also decreased coordination among parts of the brain that help us interpret what emotions these faces are conveying.

In a marked sex difference, women under stress showed the opposite women under stress had increased activity in the fusiform face area and increased coordination among the regions of the brain used in interpreting facial emotions compared to the control group.

Cortisol levels, a known indication of stress, were manipulated using the cold pressor stress test, with no significant sex differences in baseline cortisol or degree of cortisol change.

Men and women under stress were as adept as those in the control group at remembering the faces.

"The study indicates that experiencing acute stress can affect subsequent activity and interactions in brain regions in opposite ways for males and females," said Mather, associate professor of gerontology and psychology in the USC Davis School of Gerontology and the USC College of Letters, Arts and Sciences.

"Under stress, men tend to withdraw socially while women seek emotional support," Mather said.

Prior research has shown the crucial role of the insula in helping us simulate the experiences of others, while the temporal pole has been shown to be important for understanding the emotions of others. Both are part of a known circuit along with the inferior frontal region and the amygdala that contribute to empathy and social understanding.

The study looked at forty-seven right-handed non-smokers. All participants were asked to refrain from exercise or caffeine in the hour before the study and none of the participants were on hormone birth control or steroid medications.


'/>"/>

Contact: Suzanne Wu
suzanne.wu@usc.edu
213-740-0252
University of Southern California
Source:Eurekalert

Related medicine news :

1. Most youth hockey injuries caused by accidents, not checking, UB study shows
2. Writing checks that bounce: World continues to backtrack on HIV treatment
3. AAP Offers New Online Pediatric Symptom Checker on HealthyChildren.org
4. Discount Medical Supplies Provider Now Offering International Checkout
5. Check In Systems Enhances Patient Registration Solution
6. Click It or Ticket Coming to a Seat Belt Checkpoint Near You
7. PharmacyChecker.com Reports Decrease in Brand Name Drug Prices From Canadian and Other International Online Pharmacies
8. "IPGDx, LLC Announces The Continued Validation Of Its Patented Technology For The Assessment Of Prognosis; PrognostiCheck" Getting the New Information to Patients and Do
9. Fertility Check Educates Women About Infertility; IntegraMed Launches Interactive Assessment Tool
10. Health Reform for Out-Of-Network Providers: Receiving Insurance Checks Directly? - Free Webinars on Why and How
11. Guaranteed PR Results from Borough PR with the New ‘PRcheck'
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/22/2017)... (PRWEB) , ... May 22, 2017 , ... ... part of a larger group investing in InsightRX, an early stage company in ... underlying biological and pharmacological characteristics. Greatpoint Ventures Innovation Fund acted as ...
(Date:5/21/2017)... ... May 20, 2017 , ... ... designs created specifically for use in Final Cut Pro X. The business-oriented elements ... productions. Pixel Film Studios’ ProParagraph Corporate will deliver a professional and distinguished look ...
(Date:5/21/2017)... , ... May 21, 2017 , ... For more than ... cover a wide range of knives and swords, from functional to fantasy. United Cutlery ... goods with sleek, modern designs that defy tradition. , Offering a range of weapons ...
(Date:5/19/2017)... ... May 19, 2017 , ... A leader in higher education ... began recruitment efforts for the inaugural cohort of its online Master of ... expertise to approach and address the unique nuances healthcare organizations face using a ...
(Date:5/19/2017)... ... May 19, 2017 , ... The Hill Agencies, a family managed firm that ... California Central Valley, is announcing a joint charity initiative with the Boys and Girls ... kid’s camp event. , The Boys and Girls Club of Kern County gives young ...
Breaking Medicine News(10 mins):
(Date:5/3/2017)... 2017 A Catheterization Laboratory is an ... facility. Commonly referred to as cath lab, this ... imaging technology to give physicians visual access to ... spaces, a team of physicians perform life-saving procedures ... intervention, congenital heart defect closure, stenotic heart valves, ...
(Date:5/3/2017)... N.J. , May 3, 2017  Getinge, ... that contribute to quality enhancement and cost efficiency ... from a study of contemporary practice demonstrating that ... first-line therapy for critically ill patients. The single-center, ... Company,s newer large volume MEGA ® 50cc ...
(Date:5/2/2017)... and NEW YORK and ... -- As the leading distributor of market intelligence, MarketResearch.com ... European Med Tech Reimbursement Consulting AB that allows ... Reimbursement Consulting AB,s proprietary market analyses through the MarketResearch.com ... around the world easy access to complete product descriptions ...
Breaking Medicine Technology: