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Study: Longtime Marijuana Smokers Lack Motivation, Reward-Seeking Behavior
washington.cbslocal.com ^ | July 4, 2013

Posted on 07/05/2013 3:27:36 PM PDT by grundle

WASHINGTON (CBSDC) – A new study finds that longtime marijuana use lowers motivation and reward-seeking behavior as the brain produces less dopamine.

In a small sample test, researchers in the United Kingdom scanned the brains of 19 long-term marijuana smokers along with 19 nonusers of the same age and sex, measuring the distribution of chemicals throughout the brain via positron emission tomography.

Marijuana smokers were found to produce less of the “feel good” chemical dopamine than their counterparts over time.

(Excerpt) Read more at washington.cbslocal.com ...


TOPICS: Health/Medicine; Science
KEYWORDS: 420; dopeheads; finos; libertarians; marijuana; medicalmarijuana; stoners
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To: Sawdring

Why not? An N of 38 is acceptable depending on the variance of the test metrics.


21 posted on 07/05/2013 3:52:47 PM PDT by Kirkwood (Zombie Hunter)
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To: Paisan

Um, I’ve never needed any ‘help’ for sexual intercourse. Worst thing about weed is that it’s illegal. But it does have a few other side effects which I avoid, so I’ve stayed away from the stuff. As to the scotch, well, I drank an entire fifth of J&B 8 year old on my 21st birthday. Haven’t been able to even smell the stuff since then. Having spent time as a bartender in college, I am a light social drinker ... I never drink in the dark and tend to get social when I imbibe.


22 posted on 07/05/2013 4:09:52 PM PDT by MHGinTN (Being deceived can be cured.)
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To: Sawdring

“19 users and 19 non users? I hope they don’t call this science”

thanks for that; though in here it likely falls on deaf ears


23 posted on 07/05/2013 4:11:22 PM PDT by Wuli (qu)
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To: Freestate316

“Kenya bhang”

Trudat!


24 posted on 07/05/2013 4:13:44 PM PDT by Stormdog (A rifle transforms one from subject to Citizen)
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To: Wuli

19 users? 19 non users? That’s not a study, that’s my neighborhood block party!


25 posted on 07/05/2013 4:15:23 PM PDT by Ueriah
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To: 1rudeboy

Gambling at “Rick’s”? “I’m shocked, shocked to find that gambling is going on in here!”


26 posted on 07/05/2013 4:29:09 PM PDT by catnipman (Cat Nipman: Vote Republican in 2012 and only be called racist one more time!)
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To: Stormdog

Mau Mau-y Wowie


27 posted on 07/05/2013 4:30:33 PM PDT by hawkboy
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To: grundle

Probably should have compared the dope smoker’s brain scans with mouse brain scans (non-dope smoking mice of course).


28 posted on 07/05/2013 4:30:47 PM PDT by catnipman (Cat Nipman: Vote Republican in 2012 and only be called racist one more time!)
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To: Sawdring

“19 users and 19 non users?”

Did you know that 4 out of 5 dentists surveyed recommend sugarless gum? Big study.


29 posted on 07/05/2013 4:39:39 PM PDT by Owl558 (Those who remember George Santayana are doomed to repeat him)
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To: Owl558
And Crest has been shown to be an effective decay preventive dentifrice when use in a conscientiously applied program of oral hygiene and regular professional care.
30 posted on 07/05/2013 4:43:24 PM PDT by MHGinTN (Being deceived can be cured.)
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To: hawkboy

“Mau Mau-y Wowie”

That’s the winner!


31 posted on 07/05/2013 4:54:23 PM PDT by Stormdog (A rifle transforms one from subject to Citizen)
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To: COBOL2Java

perfect image


32 posted on 07/05/2013 5:44:24 PM PDT by Nifster
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To: grundle

No sh*t!
Keep ‘em stoned and stupid...Alinsky/ Obozo


33 posted on 07/05/2013 7:42:30 PM PDT by matginzac
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To: grundle
Study: Longtime Marijuana Smokers Lack Motivation. . . .

You know, this is rather surprising. One would think marijuana smokers would be so much more active and alert.

34 posted on 07/05/2013 8:15:50 PM PDT by Charles Henrickson (They're all weed-weed up.)
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To: grundle

Wonder how much this stupid information cost us?


35 posted on 07/05/2013 8:17:27 PM PDT by Some Fat Guy in L.A. (Still bitterly clinging to rational thought despite it's unfashionability)
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