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Politics : Formerly About Advanced Micro Devices
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From: Brumar894/23/2015 3:08:10 PM
   of 1584948
 
Marijuana users may have ‘false memories’: Brain scans reveal how cannabis smokers can live in their own reality
  • Brains scans showed cannabis users have a less active hippocampus
  • This is the area that is associated with storing and retrieving memories
  • Memory problems persisted months after someone stopped smoking
    • By Ellie Zolfagharifard For Dailymail.com

    Sometimes, our brains can trick us into remembering things that never happened.

    These memory 'mistakes' are seen more frequently in psychiatric disorders and old age – and now researchers have revealed why they are also more common in cannabis users.

    Using neuroimaging, researchers discovered that the brains of heavy cannabis have a less active hippocampus compared with the general population.



    Cannabis users are more likely to live in a distorted reality and have false memories, according to a new study. This image shows brain patterns associated with real memories rather than false ones. In the control group (top), the activations are much more intense and extensive than in the group of cannabis consumers (bottom)

    This is part of the brain that is responsible for storing and retrieving memories.

    .........
    'The present results indicate that long-term heavy cannabis users are at an increased risk of experiencing memory errors even when abstinent and drug-free,' the authors wrote.

    'These deficits show a neural basis and suggest a subtle compromise of brain mechanisms involved in reality monitoring.'

    'This lingering diminished ability to tell true from false may have medical and legal implications.'

    In a similar study earlier this month, researchers found that teenagers who smoke cannabis for just three years could be damaging their long- term memory.

    Participants in a study who had used the drug daily for around three years in their teens had an abnormally shaped hippocampus by the time they were in their early 20s.

    They also performed around 18 per cent worse in long-term memory tests than individuals who had never touched the drug.

    .............

    Read more: http://www.dailymail.co.uk/sciencetech/article-3051326/Marijuana-users-false-memories-Brain-scans-reveal-cannabis-smokers-live-reality.html#ixzz3YA18Pbsp
    Follow us: @MailOnline on Twitter | DailyMail on Facebook

    Barack Obama could not be reached for comment. h/t Ed Driscoll


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