Men Respond To Stress By Not Understanding Others' Feelings
By Rick Nauert PhD Senior News Editor
Reviewed by John M. Grohol, Psy.D. on September 29, 2010
A new study finds that stressed men have diminished activity in brain regions responsible for understanding others’ feelings.
In the investigation, researchers had men look at angry faces. The results suggest 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 in 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.
“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.
From here.
AardvarkGoodSwimmer
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AardvarkGoodSwimmer
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Joined: 26 Apr 2009
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Gender: Male
Posts: 7,663
Location: Houston, Texas
And then there's the question of between-group difference vs. within-group difference. For example, I'm sure some men are great at reading facial expressions during stress and some women are lousy at it. So, how wide is the spectrum within women and within men, and how does this compare to the "average" difference between men and women?
Interesting. Though it is strange they looked at right handed non smokers. That doesnt seem as scientific to me as looking at a subsection of the general population. Do they think that left handed people, or smokers, will skew the study?
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