Navigation Links
Scientists Identify Brain's 'Hate Circuit'
Date:10/29/2008

And same 2 areas also activated by romantic love, study finds

WEDNESDAY, Oct. 29 (HealthDay News) -- British researchers say they've identified a "hate circuit" in the brain.

This hate circuit shares part of the brain associated with aggression, but is distinct from areas related to emotions such as fear, threat, and danger, said researchers Professor Semir Zeki and John Romaya, of University College London's laboratory of neurobiology.

The study was published online Oct. 29 in the journal PLoS One.

"Hate is often considered to be an evil passion that should, in a better world, be tamed, controlled, and eradicated," Zeki said in a journal news release. "Yet to the biologist, hate is a passion that is of equal interest to love. Like love, it is often seemingly irrational and can lead individuals to heroic and evil deeds. How can two opposite sentiments lead to the same behavior?"

In this study, 17 female and male volunteers underwent brain scans while they looked at photos of a person they hated, along with photos of a "neutral" person. Looking at images of hated people triggered activity in an area that includes structures in the cortex and in the sub-cortex as well as components that generate aggressive behavior and translate it into action.

The hate circuit also includes a part of the frontal cortex that's believed to play a major role in predicting the actions of others, likely an important feature when a person is faced with someone they hate, the researchers said.

The sub-cortical activity of the hate circuit involves two structures called the putamen and insula. The putamen plays a role in the perception of contempt and disgust, and may be part of the motor system that's mobilized to take action, the scientists said.

"Significantly, the putamen and insula are also both activated by romantic love. This is not surprising. The putamen could also be involved in the preparation of aggressive acts in a romantic context, as in situations when a rival presents a danger. Previous studies have suggested that the insula may be involved in responses to distressing stimuli, and the viewing of both a loved one and a hated face may contribute such a distressing signal," Zeki said.

He added that activity in parts of the hate circuit matches the strength of the person's declared intensity of hate, "thus allowing the subjective state of hate to be objectively quantified. This finding may have legal implications in criminal cases, for example."

More information

The Science Museum in London, England, has more about the brain and emotions.



-- Robert Preidt



SOURCE: PLoS One, news release, Oct. 29, 2008


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. New prion protein discovered by Canadian scientists may offer insight into mad cow disease
2. Scientists Probe Sepsis Deadly Secrets
3. Scientists puzzled by severe allergic reaction to cancer drug in the middle Southern US
4. Scientists Develop Natural Protection for Stored Foods
5. Scientists detect presence of marburg virus in african fruit bats
6. Scientists Spot Brains Free Will Center
7. Scientists ID Likely Culprit in Popcorn Lung
8. Scientists explain how insulin secreting cells maintain their glucose sensitivity
9. Scripps Research scientists shed new light on how antibodies fight HIV
10. Scientists, physicians present latest findings in personalized cancer treatment and prevention
11. Scientists demonstate link between genetic variant and effectiveness of smoking cessation meds
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists Identify Brain's 'Hate Circuit'
(Date:6/27/2017)... , ... June 27, 2017 , ... ... assistance and personal financial planning services to residents of southern New Hampshire, is ... event that promises to fight hunger and homelessness in the region. , New ...
(Date:6/27/2017)... Ore. (PRWEB) , ... June 27, 2017 , ... ... (CSP), today announced the expansion of Atmosera Managed Azure Services . The ... includes enhancements in support of the company’s growing customer base. Atmosera’s next generation ...
(Date:6/27/2017)... CT (PRWEB) , ... June 27, 2017 , ... Dr. ... the recent renovation of his practice, Advanced Periodontics and Dental Implant Center of Connecticut. ... increased the administrative and waiting areas. The renovations are intended to improve patient comfort ...
(Date:6/27/2017)... ... June 27, 2017 , ... Today, June 27th is ... PTSD. Yet less than 20% will receive adequate care due to lack of effective ... receive any care at all. And left untreated, veterans are at an increased risk ...
(Date:6/27/2017)... ... 2017 , ... East Los Angeles dentist, Ramin Assili DDS , comments ... happens to a woman during pregnancy can have profound effects on a developing fetus, ... on a baby’s long-term health. This study, which was performed at the University of ...
Breaking Medicine News(10 mins):
(Date:6/16/2017)... Corp. is voluntarily performing a worldwide field correction of certain Intra-Aortic Balloon Pumps ... ... CS100i IABP ... 0998-UC-0446HXX; 0998-UC-0479HXX 0998-00-3013-XX;  0998-UC-3013-XX 0998-00-3023-XX;  0998-UC-3023-XX ... This field correction also applies to any System 98 or ...
(Date:6/14/2017)... N.C. , June 14, 2017  In 2016, ... Creative Startups pitch competition and came away ... reality platform is described by Forbes as "entering the ... American Medical Association as teaching "empathy to medical professionals ... the startup was recently named a finalist for the ...
(Date:6/10/2017)... , June 9, 2017  Shane K. Burchfield, DPM, is ... for excellence as a Podiatrist in Alabama . ... at Family First Foot Care. He brings over 20 years of ... pain management and healthcare, to his role. ... Foot Care, PC is pleased to welcome you to ...
Breaking Medicine Technology: