Cannabis users and IQ change

Ole Rogeberg discusses methodological problems with a well-publicized study, and the difficulty of constructive engagement in this research controversy.

5 Responses to Cannabis users and IQ change

  1. Andreas Moser June 23, 2013 at 2:37 am #

    Based on the very small study done on my former housemates, cannabis has a very negative effect on IQ but it makes you believe that it has a positive effect.

  2. Tidaltree June 23, 2013 at 12:01 pm #

    In my experience, daily use of Marihuana leads to “thinking slower,” which is quite logical considering that part of the effect of THC is lowering the speed signals travel the neural pathways by approximately 20 km/h. Thus it has an impact on IQ on heavy users.

    The impact lessens after a while of abstinence thou, being completely regenerated after 4-6 weeks. So it is no lasting issue. But there will be a long lasting effect, as under influence you’re experiencing things differently. If this effect is leading to a lesser IQ I simply don’t know, but doubt it.

  3. RobC June 23, 2013 at 12:39 pm #

    Researchers should recognize that there may be many forms of intelligence not measured by I.Q. tests. Accordingly, though regular marijuana use may result in a lower I.Q., it may increase one’s Twinkie-eating intelligence and promote the development of one’s “Oh wow” expressive intelligence.

  4. Judith A JARVIS June 24, 2013 at 9:43 pm #

    stops my seizures So What Does Epilepsy.Look Like ? i dont have grand mals i say yes to it

  5. CJ June 24, 2013 at 9:45 pm #

    IQ? Define please. (Exaaaaaactly)

    “Common sense, so rare, it’s like a super power”

    One Love.