study tries brain scans to better predict adolescents problem drug use
Last Updated : GMT 11:59:16
Egypt Today, egypt today
Egypt Today, egypt today
Last Updated : GMT 11:59:16
Egypt Today, egypt today

Study tries brain scans to better predict adolescents' problem drug use

Egypt Today, egypt today

study tries brain scans to better predict adolescents problem drug use

drug or alcohol abuse
San Francisco - Xinhua

Two researchers, one in the United States and the other in Germany, claim they have found a better way to predict what personality traits might indicate a kid is at risk for drug or alcohol abuse.

The finding, reported this week in Nature Communications by Brian Knutson, a professor of psychology at Stanford University, and Christian Buchel, a professor of medicine at Universitatsklinikum Hamburg Eppendorf, was based on a brain scan dataset covering, among other things, 144 European adolescents who scored high on a test of what's called novelty seeking.

Novelty seeking isn't inherently bad, Knutson noted. On a good day, the urge to take a risk on something new can drive innovation. On a bad day, however, it can lead people to drive recklessly, jump off cliffs and ingest whatever someone hands out at a party. And psychologists know that kids who score high on tests of novelty seeking are on average a bit more likely to abuse drugs.

The pair of researchers were out to work on the question: could there be a better test, one both more precise and more individualized, that could tell whether novelty seeking might turn into something more destructive?

They suspected that a brain-scanning test called the Monetary Incentive Delay Task, or MID, could be the answer.

Knutson had developed MID as a way of targeting a part of the brain now known to play a role in mentally processing rewards like money or the high of a drug. During the test, participants lie down in a magnetic resonance imaging (MRI) brain scanner to play a simple video game for points, which they can eventually convert to money. At the start of each round, each player gets a cue about how many points he stands to win during the round. It's at that point that players start to anticipate future rewards. For most people, that anticipation alone is enough to kick the brain's reward centers into gear.

Kids' brains in general respond less when anticipating rewards, compared with adults' brains. But that effect is even more pronounced when those kids use drugs, which suggests one of two things: either drugs suppress brain activity, or the suppressed brain activity somehow leads youths to take drugs.

If it's the latter, according to the researchers, then the test could predict future drug use. To support this assumption, they need to measure brain activity in non-drug-using adolescents and compare it to eventual drug use.

Making the comparison possible was that Buchel and colleagues in Europe had already collected data on around 1,000 14-year-olds as they went through MID and had also followed up with each of them two years later to find out if they'd become problem drug users, for example, if they smoked or drank on a daily basis or ever used harder drugs like heroin.

Knutson and Büchel then focused their attention on 144 adolescents who hadn't developed drug problems by age 14 but had scored in the top 25 percent on a test of novelty seeking.

Analyzing that data, the two found they could correctly predict whether youngsters would go on to abuse drugs about two-thirds of the time based on how their brains responded to anticipating rewards.

This is a substantial improvement over behavioral and personality measures, which correctly distinguished future drug abusers from other novelty-seeking 14-year-olds about 55 percent of the time, only a little better than chance.

"This is just a first step toward something more useful," Knutson was quoted as saying in a news release from Stanford. "Ultimately the goal -- and maybe this is pie in the sky -- is to do clinical diagnosis on individual patients" in the hope that doctors could stop drug abuse before it starts. 

source: Xinhua

Name *

E-mail *

Comment Title*

Comment *

: Characters Left

Mandatory *

Terms of use

Publishing Terms: Not to offend the author, or to persons or sanctities or attacking religions or divine self. And stay away from sectarian and racial incitement and insults.

I agree with the Terms of Use

Security Code*

study tries brain scans to better predict adolescents problem drug use study tries brain scans to better predict adolescents problem drug use



Egypt Today, egypt today Modern colorful bedroom renovation

GMT 12:15 2017 Thursday ,21 December

Modern colorful bedroom renovation
Egypt Today, egypt today Paris Fashion Week: John Galliano goes co-ed on the catwalk
Egypt Today, egypt today For the Variety of Interior Design Styles

GMT 22:35 2017 Tuesday ,19 December

For the Variety of Interior Design Styles

GMT 18:26 2018 Friday ,14 December

Mashrou’ Leila headline Apple event in Dubai

GMT 08:36 2017 Tuesday ,05 December

Kuwait prepares for hosting GCC Summit

GMT 11:54 2017 Wednesday ,15 February

Cult Finnish director calls for compassion for migrants

GMT 09:51 2019 Monday ,19 August

Live a frustrating atmosphere in your career

GMT 12:43 2017 Sunday ,23 April

Cavani turns architect for win over Montpellier

GMT 08:17 2017 Saturday ,16 September

Actor Hussein Fahmy denies marriage

GMT 21:54 2017 Saturday ,22 April

"Expo Turkey by Qatar" Concludes

GMT 11:12 2018 Tuesday ,23 January

What to do about Federer

GMT 14:10 2016 Tuesday ,27 December

Speakers of Parliaments sign MoUs

GMT 11:14 2018 Thursday ,18 January

China says Iranian oil tanker wreck located

GMT 11:19 2012 Wednesday ,25 July

Massimo Dutti opens in Al Ain Mall

GMT 08:55 2017 Sunday ,26 November

US cutting off arms supply to Kurds fighting

GMT 11:56 2014 Monday ,08 December

Happy Socks to open London flagship store

GMT 15:17 2015 Wednesday ,29 July

Flights resume at Rome airport after fire

GMT 18:57 2012 Thursday ,22 November

Vatican launches new Latin academy with Tweet

GMT 14:07 2017 Sunday ,24 December

China jails VPN owner for over five years

GMT 00:06 2016 Wednesday ,22 June

France's Peugeot-Citroen

GMT 07:14 2017 Friday ,23 June

(September24th-October23rd)
 
 Egypt Today Facebook,egypt today facebook  Egypt Today Twitter,egypt today twitter Egypt Today Rss,egypt today rss  Egypt Today Youtube,egypt today youtube  Egypt Today Youtube,egypt today youtube
egypttoday egypttoday egypttoday egypttoday
egypttoday egypttoday egypttoday
egypttoday
بناية النخيل - رأس النبع _ خلف السفارة الفرنسية _بيروت - لبنان
egypttoday, Egypttoday, Egypttoday