{"id":13307,"date":"2022-06-07T00:00:00","date_gmt":"2022-06-06T22:00:00","guid":{"rendered":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/?post_type=purple_issue&p=13307"},"modified":"2022-06-08T10:36:06","modified_gmt":"2022-06-08T08:36:06","slug":"the-explainer-psychedelics","status":"publish","type":"post","link":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/2022\/06\/07\/the-explainer-psychedelics\/","title":{"rendered":"The Explainer: Psychedelics"},"content":{"rendered":"\n
<\/div>
\n

THE EXPLAINER:
<\/span>PSYCHEDELICS<\/strong><\/span><\/h3>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n\n

WHAT ARE PSYCHEDELICS? <\/span><\/strong><\/h4>\n\n\n\n

Psychedelics are psychoactive substances (ones which alter the brain\u2019s functioning) that are part of the \u2018hallucinogens\u2019 family. <\/span><\/p>\n\n\n\n

When ingested, they bring about an altered state of consciousness, involving temporary mental, visual and auditory changes, also known as a \u2018trip\u2019, or \u2018tripping\u2019. <\/span><\/p>\n\n\n\n

Humans have known about psychedelics for much of history. Many are naturally occurring, like psilocybin (the active compound found in magic mushrooms), or mescaline (found in the peyote cactus), and have been incorporated into tribal and spiritual rituals in many cultures. <\/span><\/p>\n\n\n\n

However, largely due to a decades-long embargo on studying them, exactly how psychedelics work and what they can do for us remains mostly uncertain. However, recent advances in research have started to improve our understanding. <\/span><\/p>\n\n\n\n

HOW DO THEY WORK? <\/span><\/strong><\/h4>\n\n\n\n

Most psychedelics increase activity in certain neurons that respond to the neurotransmitter serotonin. Serotonin has many varied functions in the human brain that are still being investigated. <\/span><\/p>\n\n\n\n

\"\"
Artist\u2019s impression of LSD (blue) fitting in to the serotonin receptors (white ribbon) <\/span><\/figcaption><\/figure><\/div>\n\n\n\n

However, there is a growing evidence that suggests psychedelics act on the brain\u2019s default network. The default network seemingly provides a framework for our brain\u2019s activity, imposing order and structure on what\u2019s going on in our cortex. It keeps external neurological information, provided via our senses, distinct from internally generated activity, like thoughts, emotions and memory. Psychedelics seem to suppress the default network. <\/span><\/p>\n\n\n\n

One likely outcome is the relaxing of the separation of our senses, memories, thoughts and emotions, so they can influence each other more readily. <\/span><\/p>\n\n\n\n

HOW CAN THEY BE USED FOR MENTAL HEALTH TREATMENT? <\/span><\/strong><\/h4>\n\n\n\n

When it comes to mental health problems, psychedelics may have therapeutic value, both in terms of range and efficacy. Studies thus far have been limited and small, but several have shown psychedelics are potentially an effective ingredient in the treatment of mood disorders like anxiety, depression, alcoholism, OCD, and even criminal behaviour. <\/span><\/p>\n\n\n\n

\"\"
Small \u2018microdoses\u2019 of LSD <\/span><\/figcaption><\/figure><\/div>\n\n\n\n

ARE THERE SIDE EFFECTS? <\/span><\/strong><\/h4>\n\n\n\n

Chemically altering your brain\u2019s workings is never something to be taken lightly. Still, psychedelics have low addictive properties, meaning you\u2019re unlikely to end up \u2018hooked\u2019 on them. Those with pre-existing vulnerabilities to psychosis can react badly to psychedelics, but even for \u2018typical\u2019 people, their mindset upon taking a psychedelic has significant effects on experience. This means it\u2019s possible to have a \u2018bad trip\u2019, resulting in low mood, anxiety and panic attacks. The potency of some psychedelics, particularly LSD, can mean side effects are more enduring, with reports of upsetting flashbacks occurring long after the original trip. Someone under the influence of a psychedelic also has a distorted perception of reality, meaning they can end up doing serious harm to themselves without even realising. <\/span><\/p>\n\n\n\n

Psychedelic research in labs is carried out in highly controlled, safe environments, with experts on hand to minimise any potential risk. <\/span><\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

WHY ARE PSYCHEDELICS BEING USED TO TREAT SUCH A RANGE OF PROBLEMS? <\/span><\/strong><\/h4>\n\n\n\n

Given how complex and uncertain the workings of psychedelics still are, there are many possible explanations. However, one likely answer is, as just described, the potent impact psychedelics have on the brain\u2019s default network. <\/span><\/p>\n\n\n\n

Whether it\u2019s the stressed-out neurons that regulate mood becoming inflexible (depression), the reward pathways gradually distorting our thinking processes (addiction), or the inability to move on from intrusive or violent thoughts (OCD), one common aspect of mental health disorders is that they invariably involve a brain that has adapted to what it has experienced, but in unhelpful and disruptive ways. <\/span><\/p>\n\n\n\n

Many mental health interventions, however they work, are ultimately striving to coax the brain to adopt a new, less-disruptive form. And this may be where psychedelics have the advantage. <\/span><\/p>\n\n\n\n

By having such a powerful suppressive impact on the default network \u2013 thus reducing neurological boundaries, and allowing many novel stimulating links between the various brain regions \u2013 psychedelics may strike at the root of many mental health disorders, reconfiguring or overwhelming the unhelpful arrangement of neural connections that produce them, like waves demolishing sandcastles on a beach. However, they don\u2019t work on their own as a treatment: all studies so far have paired psychedelic drugs with weeks, if not, months of therapy. <\/span><\/p>\n\n\n\n

WHY ARE THEY CONTROVERSIAL? <\/span><\/strong><\/h4>\n\n\n\n
\"\"
Timothy Leary was a Harvard professor and leading proponent of psychedelics in the 1960s, but his methods were ethically questionable <\/span><\/figcaption><\/figure>\n\n\n\n

Despite being culturally fashionable from the 1950s to 1970s, psychedelics became controversial, largely due to dodgy research and unfortunate timing. <\/span><\/p>\n\n\n\n

Prominent researchers who were enthusiastic proponents of psychedelics ended up losing their jobs. Also, a good public image for psychedelics was hard to maintain when it was reported that the CIA had used it in experiments on mind control. Then there was research that suggested psychedelics may induce chromosomal defects. While later found to be inaccurate, it occurred just after the thalidomide scandal, which guaranteed a hostile reaction to any drug which had the possibility of causing birth defects. Richard Nixon\u2019s \u2018war on drugs\u2019 coming into play soon after was maybe the final nail in the coffin for the reputation and acceptance of psychedelics. <\/span><\/p>\n\n\n\n

by DR DEAN BURNETT <\/strong><\/span>
Dean is a neuroscientist and author. His latest book is Psycho-Logical<\/em> (\u00a39.99, Guardian Faber)<\/span><\/p>\n<\/div><\/section>\n\n

<\/div>
\n

WARNING <\/span><\/strong><\/h4>\n\n\n\n

Psychedelics, such as magic mushrooms and LSD, are Class A drugs according to UK law. Anyone caught in possession of such substances can face up to seven years in prison, an unlimited fine, or both. Information and support for those affected by substance abuse can be found at bit.ly\/drug_support<\/a> <\/strong><\/span><\/p>\n<\/div><\/section>\n\n

IMAGES: SHUTTERSTOCK, GETTY IMAGES, ALAMY, SCIENCE PHOTO LIBRARY, BRYAN ROTH<\/p>\n","protected":false},"excerpt":{"rendered":"

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