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OfflineDivineIntensity
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Heavy marijuana use may cause poor memory and abnormal brain structure, study says
    #19288816 - 12/17/13 02:10 PM (10 years, 2 months ago)

Abstract: Cannabis use is associated with working memory (WM) impairments; however, the relationship between cannabis use and WM neural circuitry is unclear. We examined whether a cannabis use disorder (CUD) was associated with differences in brain morphology between control subjects with and without a CUD and between schizophrenia subjects with and without a CUD, and whether these differences related to WM and CUD history. Subjects group-matched on demographics included 44 healthy controls, 10 subjects with a CUD history, 28 schizophrenia subjects with no history of substance use disorders, and 15 schizophrenia subjects with a CUD history. Large-deformation high-dimensional brain mapping with magnetic resonance imaging was used to obtain surface-based representations of the striatum, globus pallidus, and thalamus, compared across groups, and correlated with WM and CUD history. Surface maps were generated to visualize morphological differences. There were significant cannabis-related parametric decreases in WM across groups. Similar cannabis-related shape differences were observed in the striatum, globus pallidus, and thalamus in controls and schizophrenia subjects. Cannabis-related striatal and thalamic shape differences correlated with poorer WM and younger age of CUD onset in both groups. Schizophrenia subjects demonstrated cannabis-related neuroanatomical differences that were consistent and exaggerated compared with cannabis-related differences found in controls. The cross-sectional results suggest that both CUD groups were characterized by WM deficits and subcortical neuroanatomical differences. Future longitudinal studies could help determine whether cannabis use contributes to these observed shape differences or whether they are biomarkers of a vulnerability to the effects of cannabis that predate its misuse.


Link to article:http://www.pbs.org/newshour/rundown/2013/12/heavy-marijuana-use-causes-poor-memory-and-abnormal-brain-structure-study-says.html?utm_source=facebook&utm_medium=pbsofficial&utm_campaign=newshour


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Invisibleindocult
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Re: Heavy marijuana use may cause poor memory and abnormal brain structure, study says [Re: DivineIntensity]
    #19288864 - 12/17/13 02:20 PM (10 years, 2 months ago)

I think this is already posted in the news forum. 
basically everything causes detrimental effects according to these peipl


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InvisibleSophistic Radiance
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Re: Heavy marijuana use may cause poor memory and abnormal brain structure, study says [Re: indocult]
    #19288874 - 12/17/13 02:22 PM (10 years, 2 months ago)

"Cannabis use disorder" is a pretty vague term. Do I have a CUD because I smoke a bowl or two a day, same as the guy who intentionally coughs so hard on the dabs he smokes every morning that he pukes because it allegedly gets him higher?


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InvisibleTrentBoyett
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Re: Heavy marijuana use may cause poor memory and abnormal brain structure, study says [Re: DivineIntensity] * 2
    #19288884 - 12/17/13 02:25 PM (10 years, 2 months ago)

Heavy marijuana use can cause poor memory?

No fucking way.


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OfflineXUL
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Re: Heavy marijuana use may cause poor memory and abnormal brain structure, study says [Re: TrentBoyett]
    #19288886 - 12/17/13 02:26 PM (10 years, 2 months ago)

Quote:

mjmihalov said:
Heavy marijuana use can cause poor memory?

No fucking way.




Wait what are we talking about?


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TRUMP 2020


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OfflineEnvix
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Re: Heavy marijuana use may cause poor memory and abnormal brain structure, study says [Re: indocult]
    #19288901 - 12/17/13 02:28 PM (10 years, 2 months ago)

bookmarked


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InvisibleTrentBoyett
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Re: Heavy marijuana use may cause poor memory and abnormal brain structure, study says [Re: XUL] * 1
    #19288913 - 12/17/13 02:33 PM (10 years, 2 months ago)

:bouncysmoke:
Quote:

XUL said:
Quote:

mjmihalov said:
Heavy marijuana use can cause poor memory?

No fucking way.




Wait what are we talking about?



I don't even remember, man.

:getstoned:


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OfflineDivineIntensity
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Re: Heavy marijuana use may cause poor memory and abnormal brain structure, study says [Re: Sophistic Radiance]
    #19288918 - 12/17/13 02:34 PM (10 years, 2 months ago)

Quote:

BlindSophist said:
"Cannabis use disorder" is a pretty vague term. Do I have a CUD because I smoke a bowl or two a day, same as the guy who intentionally coughs so hard on the dabs he smokes every morning that he pukes because it allegedly gets him higher?




That actually does get you higher, if I'm not mistaken when you cough it causes your alveoli to open up which allows for more absorption. That's why when you take a huge hit and you almost pass out from coughing you get extremely high, most people think It's oxygen deprivation that causes that but it's not.


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OfflineDivineIntensity
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Re: Heavy marijuana use may cause poor memory and abnormal brain structure, study says [Re: TrentBoyett]
    #19288925 - 12/17/13 02:36 PM (10 years, 2 months ago)

The participants in the study smoked almost daily for three years if I'm not mistaken, at the end of the study they had not ingested cannabis for the higher end of 6 months. Yet they showed no alleviation in their symptoms, which may point to permanent memory impairment.


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OfflineEnvix
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Re: Heavy marijuana use may cause poor memory and abnormal brain structure, study says [Re: DivineIntensity]
    #19288972 - 12/17/13 02:46 PM (10 years, 2 months ago)

have you heard of neuroplasticity?

what were the participants in the study doing during those 6 months? sitting on the couch? playing video games? working menial jobs?

or were they studying math? building robots? doing lumosity exercises?


--------------------
smack a hoe out this dimension
continue my ascension
-bhad bhabie

rip. todcasil, acid sloth, st1llnox, zappaisgod, big worm (sketch), tim b


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OfflineKonyap

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Re: Heavy marijuana use may cause poor memory and abnormal brain structure, study says [Re: Envix]
    #19288994 - 12/17/13 02:53 PM (10 years, 2 months ago)

yeah highscool especially public grooms kids to be complete fuck ups

also

if they were provided weed this study would hold ground

but even then they'd probably be smoking some pesticide or someshit


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OfflineJonnyBtreed
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Re: Heavy marijuana use may cause poor memory and abnormal brain structure, study says [Re: Envix]
    #19288998 - 12/17/13 02:54 PM (10 years, 2 months ago)

I could of swore I saw somewhere today that the test was only done on ten people or something ridiculous like that so basically from a scientific standpoint a crock of shit.

I went to go look for it, but got stoned and forget what the hell I was looking for. :bongload:


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OfflineThe_Ghost
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Re: Heavy marijuana use may cause poor memory and abnormal brain structure, study says [Re: JonnyBtreed]
    #19289038 - 12/17/13 03:02 PM (10 years, 2 months ago)

Quote:

JonnyBtreed said:
I could of swore I saw somewhere today that the test was only done on ten people or something ridiculous like that so basically from a scientific standpoint a crock of shit.




More common than not.


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/ / / / / / / LISTEN TO MY MUSIC: E X E D / / / / / / /
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InvisibleSet
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Re: Heavy marijuana use may cause poor memory and abnormal brain structure, study says [Re: DivineIntensity] * 3
    #19289083 - 12/17/13 03:18 PM (10 years, 2 months ago)

To all the underage users reading this:

Stop smoking weed.  Drugs are for adults.

Your brain is still developing.  Specifically, the part of the brain that makes you who are are.  Importantly, the part of the brain that makes you make good posts.

Smoking weed from your teens into adulthood will reduce activity in your prefrontal cortex.

tl;dr:  bad

Go outside instead.  Hike around.  There's a lot of cool stuff.


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OfflineThe_Ghost
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Re: Heavy marijuana use may cause poor memory and abnormal brain structure, study says [Re: Set]
    #19289088 - 12/17/13 03:19 PM (10 years, 2 months ago)

Quote:

Set said:
To all the underage users reading this:

Stop smoking weed.  Drugs are for adults.

Your brain is still developing.  Specifically, the part of the brain that makes you who are are.  Importantly, the part of the brain that makes you make good posts.

Smoking weed from your teens into adulthood will reduce activity in your prefrontal cortex.

tl;dr:  bad

Go outside instead.  Hike around.  There's a lot of cool stuff.



But... but.. going outside and hiking around is so much better stoned :vaped:


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/ / / / / / / LISTEN TO MY MUSIC: E X E D / / / / / / /
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InvisibleSet
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Re: Heavy marijuana use may cause poor memory and abnormal brain structure, study says [Re: The_Ghost]
    #19289103 - 12/17/13 03:22 PM (10 years, 2 months ago)

Silence!



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InvisibleTrentBoyett
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Re: Heavy marijuana use may cause poor memory and abnormal brain structure, study says [Re: Set] * 1
    #19289117 - 12/17/13 03:25 PM (10 years, 2 months ago)

Habitual marijuana use can definitely have detrimental effects on a developing brain, I have experienced this first hand.


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OfflineThe_Ghost
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Re: Heavy marijuana use may cause poor memory and abnormal brain structure, study says [Re: TrentBoyett]
    #19289136 - 12/17/13 03:28 PM (10 years, 2 months ago)

Quote:

mjmihalov said:
Habitual marijuana use can definitely have detrimental effects on a developing brain, I have experienced this first hand.



Indeed. There was no stopping me at 16 tho. School drug education was a total joke and i sincerely  believed weed was the only reason i graduated at all and didn't go on a murderous rampage instead.


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/ / / / / / / LISTEN TO MY MUSIC: E X E D / / / / / / /
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Offlinempd
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Re: Heavy marijuana use may cause poor memory and abnormal brain structure, study says [Re: TrentBoyett]
    #19289149 - 12/17/13 03:31 PM (10 years, 2 months ago)

I just thought that, since I'm getting older, it was due to normal aging.  Oh well, I forgot what else I had to say.


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InvisibleTrentBoyett
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Re: Heavy marijuana use may cause poor memory and abnormal brain structure, study says [Re: The_Ghost]
    #19289177 - 12/17/13 03:35 PM (10 years, 2 months ago)

Quote:

The_Ghost said:
Quote:

mjmihalov said:
Habitual marijuana use can definitely have detrimental effects on a developing brain, I have experienced this first hand.



Indeed. There was no stopping me at 16 tho. School drug education was a total joke and i sincerely  believed weed was the only reason i graduated at all and didn't go on a murderous rampage instead.



Yeah, they blanketed all drugs as being bad all the time, so I didn't listen to a word they said.

Maybe if they were a little more truthful about drugs I would've actually listened.


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