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Experienced Marijuana Consumers Exhibit Virtually No Change In Cognitive Tasks

Ganjarden

Nug of the Month: Aug 2008
Experienced marijuana consumers exhibit nominal changes in cognitive performance after inhaling cannabis, according to clinical trial data published online this week in the journal Pharmacology, Biochemistry, and Behavior.

Investigators at Columbia University in New York and the San Francisco Brain Research Institute assessed acute marijuana-related effects on cognitive functioning in 24 volunteers who reported consuming the drug at least 24 times per week.

Researchers determined that participants' overall performance accuracy on episodic memory and working memory tasks "was not significantly altered by marijuana."

Authors concluded: "The present findings show that smoked marijuana produced minimal effects on episodic and spatial working memory of near-daily smokers. The overall response accuracy on the word recognition and working memory tasks was unaffected by marijuana, although smoked marijuana did increase the amount of time participants needed to complete these tasks.

"This pattern of effects is consistent with results previously reported by other researchers studying the acute effects of marijuana on cognitive performance of regular users. ... The finding ... stands in contrast to previous findings in occasional smokers who showed reduced accuracy on these same tasks after marijuana. ... The observation that frequent users' response accuracy is not altered after marijuana smoking to the same extent it is for infrequent users ... suggests that near-daily marijuana smokers may have developed tolerance to some marijuana-related behavioral effects."


NewsHawk: Ganjarden: 420 MAGAZINE
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Website: Experienced Marijuana Consumers Exhibit Virtually No Change In Cognitive Task Performance After Smoking, Study Says
 

corners

Member
Yeah, i can relate to this. If i smoke a lot i dont have any issues with physical tasks or driving even. If i haven't smoked in a while, no tolerance, then i wont drive and im a lil too giddy to think straight sometimes.

* warning* i am not advocating smoking and driving as this can be bad for some folks as it all effects us differently and some people are just bad drivers before or after smoking.
 

Lemon Paradise

New Member
Yeah, i can relate to this. If i smoke a lot i dont have any issues with physical tasks or driving even. If i haven't smoked in a while, no tolerance, then i wont drive and im a lil too giddy to think straight sometimes.

* warning* i am not advocating smoking and driving as this can be bad for some folks as it all effects us differently and some people are just bad drivers before or after smoking.

so true..lol
oh, and yah, the tolerence thing,, I agree with that too :)
 

Purple Goose

On Vacation
I dont think it is so much tolerance as it is the fact that marijuana does alter how your mind works but after enough time we learn how to compensate I would equate this to how when a person suffers from nerve damage and has to relearn how to function with there lessend gross and fine motor skills.
 

Lemon Paradise

New Member
I dont think it is so much tolerance as it is the fact that marijuana does alter how your mind works but after enough time we learn how to compensate I would equate this to how when a person suffers from nerve damage and has to relearn how to function with there lessend gross and fine motor skills.

interesting point of view :51: never though of it that way before..
 
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