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Tag: intelligence quotient

NORML Working to Reform Marijuana Laws
  • SCIENCE

Study: Frequent Cannabis Use Unrelated To Brain Morphology

  • by Paul Armentano, NORML Deputy Director
  • Posted on April 30, 2018April 27, 2020

The frequent use of cannabis is not associated with changes in brain structure, according to data published online ahead of print in the journal Addiction. Authors reported, “[N]ormal variation in cannabis use is statistically unrelated to individual differences in brain morphology as measured by subcortical volume.”

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NORML Working to Reform Marijuana Laws
  • SCIENCE

Study: Cannabis Use Not Associated With Deficits In Intelligence Quotient

  • by Paul Armentano, NORML Deputy Director
  • Posted on October 22, 2014

Investigators at the University College of London analyzed data from 2,612 subjects who had their IQ tested at the age of eight and again at age 15. They reported no relationship between cannabis use and lower IQ at age 15 when confounding factors such as alcohol use and cigarette use were taken into account.

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