Navigation Links
Drinking Dampens Ability to Feel Fear
Date:4/30/2008

Brain scans illustrate biological reason why alcohol can lead to aggression

WEDNESDAY, April 30 (HealthDay News) -- Alcohol can make people frisky, chatty and, as any bouncer knows, feisty.

Now, a new brain scan study shows drinking actually dampens the biological ability to feel fear.

When people drink, these lowered fear levels can lead to liquor-fueled courage that can ultimately make people more aggressive, explained study co-author Dr. Daniel Hommer.

"You're less likely to feel afraid, and you're also less likely to run away or to avoid conflict," said Hommer, chief of the section on brain imaging at the National Institute on Alcoholism and Alcohol Abuse.

Using a technology known as functional MRI, researchers scanned the brains of 12 subjects as they received alcohol or a saline solution intravenously.

All the subjects -- an average age of 26 -- were social drinkers, meaning they typically drank every week but not every day. They drank an average of 1.9 days a week and 3.6 drinks per day on the day they drank.

Seven of the subjects were women and five were men; all were healthy. Each volunteer received both alcohol or the saline solution, on two separate occasions.

The subjects looked at images of human faces. Some images had neutral expressions, while others had scary looks designed to provoke a natural fearful response.

The threatening faces "are a cue that something is dangerous going on," Hommer explained.

The fMRI scanner, meanwhile, tracked the levels of activity in parts of the brain where emotions are processed.

The researchers found that alcohol boosted activity in the parts of the brain that deal with rewards, but it also dampened activity in areas devoted to fear.

"This helps us understand a little more about how the brain works, and how alcohol functions as a drug in the brain," Hommer said.

The findings wer
'/>"/>

Copyright©2008 ScoutNews,LLC.
All rights reserved  

Page: 1 2

Related medicine news :

1. Heavy Drinking Boosts Stroke Risk for Chinese Men
2. Good Cholesterol Wont Help Heavy-Drinking Older Men
3. Drinking Often Spurs Move to Poorer Neighborhoods
4. Underage drinking starts before adolescence
5. Briefing on a new Web resource to address global drinking water crisis
6. Family history of alcoholism affects response to drug used to treat heavy drinking
7. Teenage Drinking Can Spell Lasting Trouble
8. Alcohol and cancer: is drinking the new smoking?
9. Kids still not drinking enough milk
10. Parents Encouraged to Set an Example for Their Teens and Help Stop Underage Drinking
11. Morrison Takes Aim at Underage Drinking in New Radio Campaign
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Drinking Dampens Ability to Feel Fear
(Date:4/23/2014)... showing the potential health benefits of probiotics, antioxidants and ... supplements. And the chemical industry is getting in on ... could deter growth, so the industry is responding with ... the cover story in Chemical & Engineering News ... Chemical Society. , Melody M. Bomgardner, a senior editor ...
(Date:4/23/2014)... URBANA, Ill. - In a country as wealthy as the ... in 12 seniors do not have access to adequate food ... are food insecure. , Recent research at the University ... Examination Survey (NHANES) revealed that the seniors who are dealing ... , "In 2011, 8.35 percent of Americans over age ...
(Date:4/23/2014)... of scientists led by a researcher from the Cancer ... University of Singapore has identified the cancer specific stem ... the possibility of developing new drugs for the treatment ... The research group, led by Dr Chan Shing Leng, ... first time that a cancer-specific variant of a cell ...
(Date:4/23/2014)... Midlife Occupational and Leisure Time Physical Activity on Mobility ... in midlife increases the risk of mobility limitation in ... This is found in a study which followed up ... was conducted at the Gerontology Research Center in Finland ... physical labor is often repetitive, wears the body and ...
(Date:4/23/2014)... known as Ritalin, may prevent the depletion of self-control, ... a journal of the Association for Psychological Science. , ... or trying to focus attention on a boring textbook ... potential explanation for this difficulty: Exerting self-control for a ... self-control effectively on subsequent tasks. , "It is as ...
Breaking Medicine News(10 mins):Health News:More Americans in their golden years are going hungry 2Health News:Scientists identify cancer specific cell for potential treatment of gastric cancer 2Health News:Scientists identify cancer specific cell for potential treatment of gastric cancer 3Health News:Midlife occupational and leisure-time physical activity limits mobility in old age 2Health News:ADHD drug may help preserve our self-control resources 2
... glucose control can lower the risk of cardiovascular disease in ... control on the blood sugar levels mean that for patients ... to the normal levels as possible. Conventionally this can be ... diet and exercise plan, and adjusting medication according to the ...
... and calcium can ward off an attack of premenstrual ... set of symptoms that affect a lot of women ... common symptoms of PMS are depression, feelings of aggression ... feel their social interactions and relationships are getting affected ...
... in a number of people// with pre-diabetic conditions for diabetes ... use its own insulin to control blood sugar. As this ... overcome insulin resistance and keep up to the need of ... of blood glucose existent in patients, but the levels are ...
... new revealation, researchers have shown that twisting the graft to ... and last longer. ,In using a graft to bypass ... also used when patients with renal problems have dialysis. This ... shunt have difficlties, as in the blood vessels, the blood ...
... tissues, which have been genetically altered to express skin ... will provide them with new insight in the oncogenic ... ,Melanoma is the deadliest form of skin cancer that ... ,The scientists from the Stanford University School of Medicine ...
... says that people with low birth weight may help ... and controlling their body weights. ,Diabetes affects the ... glucose and impaired function of the insulin that helps ... factors for diabetes are obesity, physical inactivity, genetic influence ...
Cached Medicine News:
(Date:1/15/2014)... , Jan. 15, 2014 Reportlinker.com announces ... available in its catalogue: ... Worldwide Analysis http://www.reportlinker.com/p01957812/Insulin-Pump-Market--Forecast-–-Worldwide-Analysis.html#utm_source=prnewswire&utm_medium=pr&utm_campaign=Medical_Equipment_and_Supply ... Insulin Pumps are ...
(Date:1/15/2014)... 2014  Valeant Pharmaceuticals International, Inc. (NYSE: VRX ... period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976 ... by its indirect wholly-owned subsidiary, Sapphire Subsidiary Corp. ("Purchaser"), ... of Solta Medical, Inc. (NASDAQ: SLTM ) ...
(Date:1/15/2014)... , Jan. 15, 2014 ... research report is available in its ... Markets and Technologies for Advanced Drug ... of Administration ...
Breaking Medicine Technology:Insulin Pump Market & Forecast - Worldwide Analysis 2Insulin Pump Market & Forecast - Worldwide Analysis 3Insulin Pump Market & Forecast - Worldwide Analysis 4Insulin Pump Market & Forecast - Worldwide Analysis 5Insulin Pump Market & Forecast - Worldwide Analysis 6Insulin Pump Market & Forecast - Worldwide Analysis 7Insulin Pump Market & Forecast - Worldwide Analysis 8Insulin Pump Market & Forecast - Worldwide Analysis 9Insulin Pump Market & Forecast - Worldwide Analysis 10Insulin Pump Market & Forecast - Worldwide Analysis 11Insulin Pump Market & Forecast - Worldwide Analysis 12Insulin Pump Market & Forecast - Worldwide Analysis 13Insulin Pump Market & Forecast - Worldwide Analysis 14Insulin Pump Market & Forecast - Worldwide Analysis 15Insulin Pump Market & Forecast - Worldwide Analysis 16Insulin Pump Market & Forecast - Worldwide Analysis 17Valeant Pharmaceuticals Announces Receipt Of Antitrust Clearance For Its Previously Announced Acquisition Of Solta Medical, Inc. 2Valeant Pharmaceuticals Announces Receipt Of Antitrust Clearance For Its Previously Announced Acquisition Of Solta Medical, Inc. 3Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 2Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 3Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 4Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 5Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 6Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 7Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 8Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 9Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 10Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 11Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 12Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 13Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 14Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 15Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 16
... AUSTIN, Texas, Feb. 15, 2011 Luminex Corporation ... it has teamed with Partners HealthCare toward the ... assays.  This program will enable Partners HealthCare Center ... molecular diagnostic assays based on biomarkers discovered within ...
... SAN DIEGO and INGELHEIM, Germany, Feb. 15, 2011 ... expression through the Pfenex Expression Technology™ platform and ... and global leader in biopharmaceutical contract development and ... a strategic agreement. It provides Boehringer Ingelheim with ...
Cached Medicine Technology:Luminex and Partners HealthCare Announce Collaboration Agreement 2Luminex and Partners HealthCare Announce Collaboration Agreement 3Pfenex Inc. and Boehringer Ingelheim Announce Non-Exclusive Strategic Agreement for the Use of Pfenex Expression Technology™ 2Pfenex Inc. and Boehringer Ingelheim Announce Non-Exclusive Strategic Agreement for the Use of Pfenex Expression Technology™ 3
Smith & Nephew ACUFEX scissors are constructed without pins for maximum strength, dependability, durability, and safety.,A wide range of tips and angles enable the surgeon to effectively dissect any ...
These backbiters enable simple access to the anterior horn of the meniscus....
The narrow shaft and compact jaw design facilitates access and use in tight spaces, particularly useful in the posterior aspect of the knee....
... were developed in surgeon's desire to have ... an instrument with the strength to maneuver ... the bending or breaking. Arthrotek Hand Instruments ... to the surgeon's hand. This new generation ...
Medicine Products: