Navigation Links
Bullies may enjoy seeing others in pain
Date:11/6/2008

Unusually aggressive youth may actually enjoy inflicting pain on others, research using brain scans at the University of Chicago shows.

Scans of the aggressive youth's brains showed that an area that is associated with rewards was highlighted when the youth watched a video clip of someone inflicting pain on another person. Youth without the unusually aggressive behavior did not have that response, the study showed.

"This is the first time that fMRI scans have been used to study situations that could otherwise provoke empathy," said Jean Decety, Professor in Psychology and Psychiatry at the University of Chicago. "This work will help us better understand ways to work with juveniles inclined to aggression and violence."

Decety is an internationally recognized expert on empathy and social neuroscience. The new research shows that some aggressive youths' natural empathetic impulse may be disrupted in ways that increase aggression.

The results are reported in the paper "Atypical Empathetic Responses in Adolescents with Aggressive Conduct Disorder: A functional MRI Investigation" in the current issue of the journal Biological Psychology. Benjamin Lahey, Professor of Epidemiology and Psychiatry at the University, co-authored the paper, along with University students Kalina Michaslska and Yuko Akitsuki. The National Science Foundation supported the work.

In the study, researchers compared eight 16- to 18-year-old boys with aggressive conduct disorder to a control group of adolescent boys with no unusual signs of aggression. The boys with the conduct disorder had exhibited disruptive behavior such as starting a fight, using a weapon and stealing after confronting a victim.

The youth were tested with fMRI while looking at video clips in which people endured pain accidentally, such as when a heavy bowl was dropped on their hands, and intentionally, such as when a person stepped on another's foot.

"The aggressive youth activated the neural circuits underpinning pain processing to the same extent, and in some cases, even more so than the control participants without conduct disorder," Decety said.

"Aggressive adolescents showed a specific and very strong activation of the amygdala and ventral striatum (an area that responds to feeling rewarded) when watching pain inflicted on others, which suggested that they enjoyed watching pain," he said. Unlike the control group, the youth with conduct disorder did not activate the area of the brain involved in self-regulation (the medial prefrontal cortex and the temporoparietal junction).

The control group acted similarly to youth in a study released earlier this year, in which Decety and his colleagues used fMRI scans to show 7- to 12-year-olds are naturally empathetic toward people in pain.

The scans showed that when the children saw animations of someone hurt accidentally, the same portion of the brain that registered pain when they are hurt also was highlighted upon seeing someone else hurt. When they saw someone intentionally hurt, the portion of the brain associated with understanding social interaction and moral reasoning was highlighted.


'/>"/>

Contact: William Harms
w-harms@uchicago.edu
773-702-8356
University of Chicago
Source:Eurekalert

Related medicine news :

1. Top Tips to Enjoy Healthy Latin Food Without Losing the Taste (Recipe)
2. Families Encouraged to Enjoy Healthy Kids Fest January 12 at the Blue Cross RiverRink
3. Women May Enjoy Boost of Heart Health With Soy
4. Employers Enjoy PBM Savings & Negative Rx Trends
5. SOYJOY(R) Introduces Two New Ways to Enjoy Soy
6. Americans living longer, enjoying greater health and prosperity, but important disparities remain
7. Boston Kids Enjoy Free Davis Vision Screenings
8. Who Knew You Could Learn to Lose Weight by Reading an Enjoyable Novel?
9. Now You Can Have Your Fish and Enjoy It Too...
10. Case Western Reserve University study finds caregivers of spouses with dementia enjoy life less
11. The SCOOTER Stores Gift of a Power Wheelchair Allows Woman to Enjoy Active Life Once Again
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/12/2016)... Atlanta, GA (PRWEB) , ... February 12, 2016 ... ... and relationship-marketing firm announced that nominations have closed for the ISE Southeast Awards ... categories will be announced at the ISE® Southeast Executive Forum and Awards Gala ...
(Date:2/12/2016)... ... February 12, 2016 , ... Every winter, someone is killed, injured or ... West Penn Burn Center, part of the Allegheny Health Network, has partnered with ... the “Space Heaters Need Space” campaign. , “Space Heaters Need Space” aims ...
(Date:2/12/2016)... ... February 12, 2016 , ... The Jones Agency, a family owned insurance ... is launching a cooperative charity drive with the Tarrant Area Food Bank in the ... individuals and families in need, the Tarrant County Food Bank offers hope and security ...
(Date:2/12/2016)... ... February 12, 2016 , ... Young Asset Protection, ... the beginning of the latest charity campaign in their community enrichment program. Art ... to this worthy cause are currently being accepted at: http://artexpressioninc.org/ . , ...
(Date:2/12/2016)... (PRWEB) , ... February 12, 2016 , ... For Coast ... hygienist Suzan Sweeney, RDH, and dental assistant Terrell Moore shortly before 7 a.m. to ... dozens of dental professionals, donating their time and skills to help hundreds of uninsured ...
Breaking Medicine News(10 mins):
(Date:2/12/2016)...  SI-BONE, Inc., a medical device company that pioneered the use ... surgical (MIS) device indicated for fusion for certain disorders of the ... Medicare Administrative Contractor (MAC) covering the states of Connecticut ... , Massachusetts , Minnesota , ... , Rhode Island , Vermont ...
(Date:2/12/2016)... -- On Thursday, Feb. 11, 2016, surgeons at the ... Austin Medical Center successfully completed the first robotic surgery ... Surgical System with Trumpf Medical,s advanced operating table, the ... M.D., colorectal surgeon at the Texas Institute for Robotic ... technology, which seamlessly combines the da Vinci Xi Surgical ...
(Date:2/12/2016)... BUFORD, Ga. , Feb. 12 2016  OMS ... office-based dental and medical practitioners, announced today the recent ... website offers visitors a variety of features that enhance ... purchase oral surgery supplies. --> ... Supply is a fairly new company that started in ...
Breaking Medicine Technology: