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Magic mushrooms may be therapeutic
January 23rd, 2012
03:30 PM ET

Magic mushrooms may be therapeutic

Rave-goers and visitors to Amsterdam before December 2008 may be intimately familiar with magic mushrooms, but there's little scientific knowledge on what happens to the brain while tripping.

Now it appears that more research is warranted. A growing number of studies suggested that perhaps the mushrooms' key ingredient could work magic for certain mental disorders.

New research in Proceedings of the National Academy of Sciences sheds light on why one of the mushrooms' hallucinogenic chemical compounds, psilocybin, may hold promise for the treatment of depression. Scientists explored the effect of psilocybin on the brain, documenting the neural basis behind the altered state of consciousness that people have reported after using magic mushrooms.

"We have found that these drugs turn off the parts of the brain that integrate sensations – seeing, hearing, feeling – with thinking," said David Nutt, co-author of the study and researcher at Imperial College London in the United Kingdom.

Nutt is also Britain's former chief drug adviser, who has published controversial papers about the relative harms of various drugs. He was asked to leave his government position in 2009 because "he cannot be both a government adviser and a campaigner against government policy," according to a letter in the Guardian from a member of the British Parliament.

Psilocybin is illegal in the United States and considered a Schedule 1 drug, along with heroin and LSD. Schedule 1 drugs "have a high potential for abuse and serve no legitimate medical purpose in the United States," according to the Department of Justice.

But in the early stages of research on psilocybin, there's been a bunch of good news for its medicinal potential: psilocybin has shown to be helpful for terminally ill cancer patients dealing with anxiety, and preliminary studies on depression are also promising.

Nutt's study is also preliminary and small, with only 30 participants. His group used magnetic resonance imaging (MRI) to look at how the brain responds to psilocybin, from normal waking consciousness to a psychedelic state.

The study found that the more psilocybin shuts off the brain, the greater the feeling of being in an altered state of consciousness, he said. It's not the same as dreaming, because you're fully conscious and aware, he said.

The medial prefrontal cortex, the front part of the brain in the middle, appears to be crucial - it determines how you think, feel and behave. Damage to it produces profound changes in personality, and so if you switch it off, your sense of self becomes fragmented, Nutt said. That's what happens when psilocybin decreases activity in it.

"Some people say they become one with the universe," he said. "It's that sort of transcendental experience."

Another brain region that psilocybin affects is the anterior cingulate cortex, which is over-active in depression, Nutt said. Some patients with severe depression that cannot be treated with pharmaceuticals receive deep brain stimulation, a technique of surgically implanting a device that delivers electrical impulses directed at decreasing activity in that brain region. Psilocybin could be a cheaper option, Nutt said.

It's counterintuitive that a hallucinogenic drug would de-activate rather than stimulate key brain regions, although other studies have shown a mix of results regarding psilocybin turning brain areas on and off, said Roland Griffiths, a professor of psychiatry and neuroscience at the Johns Hopkins University School of Medicine. Griffiths was not involved in Nutt's study, but has also researched the effects of psilocybin.

Even if this drug gets approved some day, don't expect to be able to pick up a prescription for psilocybin at your local pharmacy, Griffiths cautioned. There's too much potential for abuse, he said.

Although scientists have found many positive effects of psilocybin in experimental trials, there are of course potential dangers. Some people have frightening experiences while on psilocybin. The fear and anxiety responses of magic mushrooms can be so great that, when taken casually in a non-medical setting, people can cause harm to themselves or others. They may jump out a window or run into traffic because of a panic reaction.

The drug would have to be administered in a controlled setting in a hospital, if found in further research to be an effective and safe therapy for certain mental illnesses, Griffiths said. It would not be appropriate for people who already have psychotic disorders such as schizophrenia, since psilocybin can exacerbate those symptoms.

But among healthy volunteers, Griffiths and others have found that people may have long-lasting positive effects from the vivid memories of being on psilocybin (in a controlled, experimental setting). People report mystical experiences of feeling the "interconnectedness of all things," which can be life-changing.

"People claim to have an enhanced sense of self, more emotional balance, they're more compassionate, they're more sensitive to the needs of others," he said. "They have more well-being and less depression, but they're not 'high' in any conventional sense. They feel like their perceptual set has shifted."

The memories of the psilocybin experience, and positive outcomes that users attribute toward them, can last as much as 25 years, research has shown.

Still, there's just not enough known yet about the long-term safety of psilocybin to say whether it could also do damage to the brain, Griffiths said.

"There’d have to be changes in the brain for these long-lasting memories and attributions to occur," Griffiths said. "We don’t know how those changes occur, and why."


soundoff (345 Responses)
  1. i#everything

    Reblogged this on Josh Bosley's and commented:
    Haha. Science.

    May 31, 2012 at 07:30 | Report abuse | Reply
  2. lk

    I took mushrooms years ago and the experience rates among the most important experiences of my life. I am not at all surprised to see that these recent studies are finding such powerful and long lasting therapeutic effects. I am surprised by how sloppy the reporting is in this piece though. Psilocybin has almost no potential for "abuse." No study has ever indicated that it is addictive. In spite of how powerful and positive and wonderful my experience was, I didn't feel any need to revisit it. A curiosity, perhaps, but I never sought it out again. And flatly stating that people may jump out of windows or run into traffic? If such things occur, it must be exceedingly rare. This substance does not make you insane, it makes your childlike sense of wonder more accessible. If anyone has run into traffic, they were insane to begin with, or on more than just mushrooms. In any case, there is no evidence that anyone has died as a direct result of consuming psilocybin mushrooms. It is absolutely ridiculous that psilocybin is a schedule 1 drug.

    December 5, 2012 at 23:53 | Report abuse | Reply
  3. Liz Tuffelmire

    When I did shrooms it was life changing. As if I my soul was no longer connected to my mind, the world was seen from an unbiased view. First I thought I was dying because I had been so depressed for so long, I was literally drowning in my tears. My best friend basically removed my mask. She asked me what was wrong. Everything poured out. While I felt like I was literally dying, I thought I was going to hell. In my mind I was dying. Therefore, my whole life flashed before my eyes and in that instant I realized I needed to change. I was sick of being a fly on the wall my whole life. I didn't want to keep being a coward. My personality has changed and I believe it has been perfected. Not that I'm perfect. I am content with who I am now. It cured my depression. It made me feel like I do have a purpose in life. It made me realize that my whole life I have been waiting for a perfect moment, I've been afraid, I have been waiting for the world to move. But I can make the world move. Life truly is what you make it. :) Maybe someone else who had a near death experience can say the same thing. The only difference is that their experience was physical and my near death experience was only in my head. Either way, when you face death you have nothing else to be afraid of. You're left with appreciation for life.

    Anyway, my brother is schizophrenic. I want to try this. I believe he'll be who he used to be... normal, funny, likeable. After all, everything is in the mind, even your perception. And since your brain chemicals are constantly changing, who's to say that his brain is permanently "imbalanced"? Maybe its not. This chemical imbalance thing is ONLY a theory. One that hasn't been proven at that.

    April 12, 2013 at 22:15 | Report abuse | Reply
  4. Jeff

    "The drug would have to be administered in a controlled setting in a hospital"

    Sounds like a good way to increase anxiety while tripping.

    May 15, 2013 at 13:54 | Report abuse | Reply
  5. ganha dinheiro

    http://www.patraoonline.com ganha dinheiro http://www.patraoonline.com/

    July 13, 2013 at 07:52 | Report abuse | Reply
  6. JH

    about 40 yrs ago I was a kid growing up in the pscilocybin era. Interesting that the mushroom effects seeing as that is what happened to me, I went blind for a few minutes, that was enough experimentation for me, I never touched them again.
    As well people do jump out of windows & have bad trips if they take too much in the powder form, I know this has happened.

    June 7, 2014 at 12:44 | Report abuse | Reply
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