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Rachel V Thomas

Just One Psilocybin Use May Lead to Lasting Positive Brain Changes, Study Finds

<span>Psilocybin</span> is the active ingredient found in magic mushrooms, and a new study shows that just one high dose (25 mg) is enough to cause alterations in the brain’s structures and help improve mental health. 

The changes could explain why some people report psychological benefits from the experience, revealed the study published in the journal Nature Communications. The study found that the effect may last for up to a month after the experience. 

In the study, researchers from the University of California, San Francisco, and Imperial College London argue that the effect may lead to “subsequent improvements in mental health”. 

"<span>Psychedelic</span> means 'psyche-revealing,' or making the psyche visible," said senior author Robin Carhart-Harris, Professor of Neurology at UCSF.

"Our data shows that such experiences of psychological insight relate to an entropic quality of brain activity and how both are involved in causing subsequent improvements in mental health. It suggests that the trip—and its correlates in the brain—is a key component of how psychedelic therapy works," Carhart-Harris added.

<h2>How A Psychedelic Trip Improved Brain Health </h2>

Psilocybin has been the subject of several studies in people that have found it appears to alleviate symptoms of depression and anxiety. It has also shown promise in addiction medicine.

In the latest study on 28 people, none had a diagnosed mental health condition. The team gave the participants a 1 mg dose of psilocybin, which the researchers regarded as a placebo, and then monitored them with electroencephalography (EEG), which records brain activity from electrodes on the scalp.

One month after the placebo, the subjects were given 25 mg of psilocybin, a dose capable of eliciting a strong psychedelic trip. 

After each experiment, the researchers measured the participants’ psychological insight, well-being, and cognitive ability. They also examined brain activity with functional MRI (fMRI) and brain connectivity with diffusion tensor imaging (DTI). 

The results showed that within 60 minutes of taking the 25 mg dose of psilocybin, the EEG revealed higher entropy — which means that the brain was processing a richer body of information under the psychedelic.

A month later, the researchers looked at their subjects' brains with DTI, which measures the diffusion of water along neural tracts in the brain, and found that they were denser and had more integrity. This is the opposite of what happens in aging, which makes these tracts more diffuse.

<strong>Also Read: </strong><a href="https://www.healthandme.com/health-news/ibogaine-why-trump-is-pushing-us-fda-to-fast-track-this-psychedelic-article-154177034" data-type="tilCustomLink">Ibogaine: Why Donald Trump Is Pushing US FDA To Fast-track This Psychedelic</a>

While the result is a never-before-seen sign of how psychedelics can change the brain, the researchers cautioned that more work needs to be done to better understand the meaning of this change. 

The participants noted that they had experienced more psychological insight after taking the 25 mg of psilocybin than they had after the 1 mg placebo, and noted "feeling optimistic about the future".

A month after the study, they also did better on a test of cognitive flexibility.

"Psilocybin seems to loosen up stereotyped patterns of brain activity and give people the ability to revise entrenched patterns of thought," said Taylor Lyons, a research associate at Imperial College London and the first author of the paper. "The fact that these changes track with insight and improved well-being is especially exciting." 

The findings could improve treatment for people with mental illness with psilocybin, for example, by ensuring that the right dosage is used to produce the right amount of brain entropy to promote insight. 

Health Conditions A-Z

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Psilocybin

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psilocybin mental health

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Psychedelic

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Psilocybin is the active ingredient found in magic mushrooms, and a new study shows that just one high dose (25 mg) is enough to cause alterations in the brain’s structures and help improve mental health.  The changes could explain why some people report psychological benefits from the experience, revealed the study published in the journal Nature Communications. The study found that the effect may last for up to a month after the experience.  In the study, researchers from the University of California, San Francisco, and Imperial College London argue that the effect may lead to “subsequent improvements in mental health”.  "Psychedelic means 'psyche-revealing,' or making the psyche visible," said senior author Robin Carhart-Harris, Professor of Neurology at UCSF. "Our data shows that such experiences of psychological insight relate to an entropic quality of brain activity and how both are involved in causing subsequent improvements in mental health. It suggests that the trip—and its correlates in the brain—is a key component of how psychedelic therapy works," Carhart-Harris added. How A Psychedelic Trip Improved Brain Health Psilocybin has been the subject of several studies in people that have found it appears to alleviate symptoms of depression and anxiety. It has also shown promise in addiction medicine. In the latest study on 28 people, none had a diagnosed mental health condition. The team gave the participants a 1 mg dose of psilocybin, which the researchers regarded as a placebo, and then monitored them with electroencephalography (EEG), which records brain activity from electrodes on the scalp. One month after the placebo, the subjects were given 25 mg of psilocybin, a dose capable of eliciting a strong psychedelic trip. After each experiment, the researchers measured the participants’ psychological insight, well-being, and cognitive ability. They also examined brain activity with functional MRI (fMRI) and brain connectivity with diffusion tensor imaging (DTI). The results showed that within 60 minutes of taking the 25 mg dose of psilocybin, the EEG revealed higher entropy — which means that the brain was processing a richer body of information under the psychedelic. A month later, the researchers looked at their subjects' brains with DTI, which measures the diffusion of water along neural tracts in the brain, and found that they were denser and had more integrity. This is the opposite of what happens in aging, which makes these tracts more diffuse. Also Read: Ibogaine: Why Donald Trump Is Pushing US FDA To Fast-track This PsychedelicWhile the result is a never-before-seen sign of how psychedelics can change the brain, the researchers cautioned that more work needs to be done to better understand the meaning of this change. The participants noted that they had experienced more psychological insight after taking the 25 mg of psilocybin than they had after the 1 mg placebo, and noted "feeling optimistic about the future".A month after the study, they also did better on a test of cognitive flexibility. "Psilocybin seems to loosen up stereotyped patterns of brain activity and give people the ability to revise entrenched patterns of thought," said Taylor Lyons, a research associate at Imperial College London and the first author of the paper. "The fact that these changes track with insight and improved well-being is especially exciting." The findings could improve treatment for people with mental illness with psilocybin, for example, by ensuring that the right dosage is used to produce the right amount of brain entropy to promote insight. 

just one psilocybin mushroom use may lead to lasting positive brain changes, study finds

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