Silent response to stress is a guy thing after all
September 29th, 2010 - 12:04 pm ICT by ANIWashington, Sep 29 (ANI): When stressed men look at angry faces, their brains show less activity in regions responsible for understanding others’ feelings-a discovery that proves silent and stoic response to stress might be a guy thing after all.
The study by USC researchers revealed that in contrast, stressed women show increased brain coordination when looking at angry faces.
“These are the first findings to indicate that sex differences in the effects of stress on social behaviour 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 the study, the researchers 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.
“Under stress, men tend to withdraw socially while women seek emotional support,” added Mather.
The study has been published in the latest issue of the journal NeuroReport. (ANI)
- Men switch off emotionally during rows - Sep 30, 2010
- Women 'handle stress better than men' - Apr 07, 2009
- Men, women respond differently under stress - Jun 05, 2011
- Social stress can really 'get under the skin' - Aug 10, 2010
- Stress hormone opposes testosterone's effects - Oct 02, 2010
- Our brain can tell real face from imitations - Jan 10, 2012
- Sexual competition makes women more jealous than men - May 04, 2012
- Women 'feel pain more than men' - Mar 16, 2011
- For embarrassing memory lapses blame your neurons - Jul 29, 2010
- Stress could tell harder on women's hearts - Apr 25, 2012
- Most women prefer men with feminine shaped faces: Study - Apr 25, 2011
- Brain's response to stress can predict dementia - Nov 10, 2011
- Casting vote causes stress hormone levels to shoot up - Jul 06, 2011
- Losing temper could actually be good for you - Jun 02, 2010
- Extra testosterone reduces empathy levels: Study - Feb 10, 2011
Tags: acute stress, angry faces, brain regions, brain response, change men, control group, effects of stress, facial expression, facial expressions, fusiform face area, parts of the brain, pressor, regions of the brain, sex difference, sex differences, social behaviour, social transactions, stress test, understanding others, usc researchers