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:2/12/2016)... ... February 12, 2016 , ... Miami Dental Specialists is excited to ... Miami dental office. Beginning in January, Miami Dental Specialists will offer the non-metal implants ... the first office to be chosen by the dental implant manufacturer, Straumann, to bring ...
(Date:2/12/2016)... ... 2016 , ... Atlantic Information Services, Inc. (AIS) is pleased ... upcoming Feb. 24 webinar that will discuss ways health plans and PBMs are ... the $1,000-per-pill hepatitis C treatment Sovaldi and high-cost PCSK9 inhibitors to treat cholesterol. ...
(Date:2/12/2016)... ... February 12, 2016 , ... The Central Coast Autism Spectrum Center (CCASC) invites teens ... provide a night of fun for teens with and without special needs to gather in ... included at the event. The dance will take place on Saturday, Feb. 13 from 7 ...
(Date:2/12/2016)... ... ... restorative dentistry, to date there has been no other option in the U.S. to stop ... a now a new protocol in stopping cavity progression; Silver Diamine Fluoride (SDF). With ... The application is as simple as drying the tooth and applying the SDF to the ...
(Date:2/11/2016)... Alpharetta, Georgia (PRWEB) , ... February 11, 2016 ... ... Physicians Group (DMPG) will use the action analytics leader’s population health solutions, ... analytics and clinical support to the Atlanta-area healthcare system. Details of the contract ...
Breaking Medicine News(10 mins):
(Date:2/11/2016)... 11, 2016 The primary goal of this ... patterns on the usage of liquid biopsy. Key information ... - Timeframe of liquid biopsy adoption amidst future ... Evs—by organization type - Sample inflow to conduct liquid ... stool, serum, and so on. - Correlation analysis of ...
(Date:2/11/2016)... YORK , Feb. 11, 2016 ... instruments commonly used in laboratories. These may range from ... condensers. Laboratory glassware is made from borosilicate glass because ... Laboratory plasticware, on the other hand, started gaining popularity ... it was easier to replace glass with plastic in ...
(Date:2/11/2016)... DUNKIRK, N.Y. , Feb. 11, 2016  Governor ... Athenex that will create 1,400 jobs throughout ... by a partnership with the SUNY Polytechnic Institute, includes ... the Conventus Building in Buffalo , ... square foot manufacturing facility in Dunkirk ...
Breaking Medicine Technology: