HOME >> MEDICINE >> NEWS
Exploring the brain chemistry of people at risk for alcohol disorders

ose amygdalas are damaged tend to be deficient in their emotional reactivity. In short, the amygdala is involved in both the alteration of the startle reflex and in more general emotional functioning. The amygdala is controlled in part by the brain's dopamine system, the same system that responds to alcohol and also produces feelings of pleasure when good things happen. Scientists believe the ability of the amygdala to react to emotional events is associated with how much dopamine is being released by specialized dopamine neurons.

For this study, researchers examined the emotional response of 60 healthy young adults, 18 to 27 years of age, to environmental cues. The participants were divided into two groups of 30 (15 males, 15 females): those with a positive paternal history of alcoholism (FH+), and those without (FH-). All participants were interviewed and completed self-reports in order to create a personal, psychological and alcohol-history profile, and had their eye-blink electromyogram (EMG) activity to acoustic startle probes measured while viewing 36 color photographs. Following the latter procedure, participants rated the photographs as pleasant, neutral or unpleasant.

The FH- group showed a normal linear increase in the eye-blink EMG component of the startle reflex, with response strength increasing from the pleasant to neutral to unpleasant photographs. In contrast, the FH+ group did not show the typical increase of eye-blink EMG to the unpleasant photographs.

"The findings suggest that FH+ individuals may have a deficit in their aversive motivational system or AMS that might lead them not to learn to moderate their drinking so that they avoid the negative consequences of drinking," said Peter R. Finn, associate professor of psychology at Indiana University. "The theoretical rationale runs something like this: an under-responsiveness to the aversive photographs is associated with a relative weakness, or reduced st
'"/>


15-Apr-2002


Page: 1 2 3 4 5

Related medicine news :

1. Exploring the brains internal stopwatch
2. Exploring why disease affects people differently
3. Exploring the relationship between alcoholism and serotonin one step at a time
4. Some brain cells change channels to fine-tune the message
5. First mouse model for multiple system atrophy points to new treatment targets for brain diseases
6. Can you read my mind? W.M. Keck Foundation funds innovative brain research at Carnegie Mellon
7. Scientist works on innovative treatments for brain tumors
8. Mechanism of RNA recoding: New twists in brain protein production
9. Does the college experience damage your brain?
10. Dartmouth researchers find where musical memories are stored in the brain
11. Common anesthetics appear safe for developing fetal brain

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Exploring the brain chemistry people risk for alcohol disorders

(Date:9/1/2015)... ... ... For many men, the first thing they notice when they go to button their white ... fitting shirt with a collar that doesn’t close against the skin, creating a sloppy look. ... all day because it’s uncomfortable. Now men in suits will be able to do ...
(Date:9/1/2015)... ... September 01, 2015 , ... Earth Brands, ( ... fall collection. Every customer who buys an Earth Brand shoe will be given ... with Trees for the Future, a nonprofit dedicated to planting more trees. Earth ...
(Date:9/1/2015)... ... September 01, 2015 , ... Celebrity hairstylist and Beauty ... “The Beauty Behind the Fashion” on Thursday, Oct. 1, at the La Valencia ... the spotlight on the collaboration between fashion and professional hair, makeup and nail design. ...
(Date:9/1/2015)... ... September 01, 2015 , ... ... to efficiently cure and prevent different malignancies. Some options for cancer treatment ... properties due to which distinctive approach is necessary for effective treatment. Several ...
(Date:9/1/2015)... ... 01, 2015 , ... Virginia entrepreneur Marcella Ellis, CEO and ... her firm’s success in the hair care and distribution industry through her combination ... will be providing “Look and learn” live demonstrations, as well as promoting her ...
Breaking Medicine News(10 mins):Health News:Getting Rid of Double Chins: New FDA Approved Kybella Treatment Proving Very Popular Among Professional Men at Crutchfield Dermatology 2Health News:Earth Brands Footwear Partners with Trees for the Future for Launch of Fall Collection: Buy Shoes, Plant a Tree 2Health News:Earth Brands Footwear Partners with Trees for the Future for Launch of Fall Collection: Buy Shoes, Plant a Tree 3Health News:Celebrity Hairstylist Ted Gibson Explores Fusion of Fashion and Beauty at “Beauty Behind the Fashion” at Fashion Week San Diego Proceeds to benefit THIRST Project 2Health News:Celebrity Hairstylist Ted Gibson Explores Fusion of Fashion and Beauty at “Beauty Behind the Fashion” at Fashion Week San Diego Proceeds to benefit THIRST Project 3Health News:CD Antigen Cancer Market and Pipeline Landscape Examined in Comprehensive Kuick Research Report Published at MarketPublishers.com 2Health News:CD Antigen Cancer Market and Pipeline Landscape Examined in Comprehensive Kuick Research Report Published at MarketPublishers.com 3Health News:Beauty Entrepreneur creates hair extension smart machine and mobile app inspired by UBER technology 2
(Date:9/1/2015)... OAKS, Calif. and BRUSSELS ... AMGN ) and UCB (Euronext Brussels: UCB) ... (STudy evaluating effect of RomosozUmab Compared with Teriparatide ... for fracture pReviously treated with bisphosphonatE therapy). The ... statistically significant difference in favor of romosozumab in ...
(Date:9/1/2015)... Emerus Holdings, a national and innovative ... diagnostic care in partnership with leading health systems, ... to receive a strategic investment from Welsh, Carson, ... care investment firm. Emerus partners with ... and ambulatory clinical services to communities across a ...
(Date:9/1/2015)... 1, 2015  Edwards Lifesciences Corporation (NYSE: EW ... valves and hemodynamic monitoring, is scheduled to present at ... Hyatt Regency Boston in Boston, Massachusetts ... Michael A. Mussallem , Edwards Lifesciences, chief executive officer, ... a company discussion with conference attendees at 10:10 a.m. ...
Breaking Medicine Technology:Amgen And UCB Announce Positive Top-Line Results From Open-Label Phase 3 Study Of Romosozumab Compared With Teriparatide 2Amgen And UCB Announce Positive Top-Line Results From Open-Label Phase 3 Study Of Romosozumab Compared With Teriparatide 3Amgen And UCB Announce Positive Top-Line Results From Open-Label Phase 3 Study Of Romosozumab Compared With Teriparatide 4Amgen And UCB Announce Positive Top-Line Results From Open-Label Phase 3 Study Of Romosozumab Compared With Teriparatide 5Amgen And UCB Announce Positive Top-Line Results From Open-Label Phase 3 Study Of Romosozumab Compared With Teriparatide 6Amgen And UCB Announce Positive Top-Line Results From Open-Label Phase 3 Study Of Romosozumab Compared With Teriparatide 7Amgen And UCB Announce Positive Top-Line Results From Open-Label Phase 3 Study Of Romosozumab Compared With Teriparatide 8Amgen And UCB Announce Positive Top-Line Results From Open-Label Phase 3 Study Of Romosozumab Compared With Teriparatide 9Emerus Announces Significant Strategic Investment By Welsh, Carson, Anderson & Stowe 2Emerus Announces Significant Strategic Investment By Welsh, Carson, Anderson & Stowe 3
Cached News: