Background: Immediate early genes (IEGs) are rapidly activated and initiate diverse cellular processes including neuroplasticity. We report the effect of psilocybin (PSIL), PSIL-containing psychedelic mushroom extract (PME) and 5-hydroxytryptophan (5-HTP) on expression of the IEGs, cfos, egr1, and egr2 in mouse somatosensory cortex (SSC). Methods: In our ini...
Several phase II studies have demonstrated that psilocybin-assisted therapy shows therapeutic potential across a spectrum of neuropsychiatric conditions, including major depressive disorder (MDD). However, the mechanisms underlying its often persisting beneficial effects remain unclear. Observational research suggests that improvements in psychological flexi...
Rationale: Psychedelic research re-emerged from a period of suppression into the so-called psychedelic renaissance. In parallel, most media reporting has shifted from the overstatement of the risks of psychedelics to overly positive hype. As the empirical evidence is more equivocal than frequently portrayed, the conclusions about the effectiveness of psyched...
Psilocybin, and its metabolite psilocin, induces psychedelic effects through activation of the 5-HT2A receptor. Psilocybin has been proposed as a treatment for depression and anxiety but sometimes induces anxiety in humans. An understanding of mechanisms underlying the anxiety response will help to better develop therapeutic prospects of psychedelics. In the...
The practice of microdosing classic psychedelic drugs (e.g. LSD [lysergic acid diethylamide] and psilocybin) has not only become more commonplace, but has also been shown to have potential in treating various psychological impairments. Much is still unknown about how people who microdose psychedelic drugs learn the processes and protocols for microdosing. To...
Natural psychedelics such as magic mushrooms have a long history of human use of at least 7000 years. Their use underwent a resurgence in the 1950/1960s following the synthesis of LSD as a psychedelic and its use as a medicine with powerful therapeutic benefits. But because non-medical use led to massive cultural changes especially in young people, all psych...
Abstract The mechanisms by which Psilocybin Therapy (PT) improves depression remain an important object of study, with scientists actively exploring acute psychological experiences and neurobiological processes as candidates. In a phase 2, double-blind, randomized, active comparator controlled trial involving patients with moderate-to-severe major depressive...
A previously healthy adolescent presented to the emergency department with an abrupt onset of altered mental status and abnormal behaviour, including shaking of the extremities, rocking back and forth, and non-sensical speech, after ingestion of chocolate that contained psilocybin. Neurological
Introduction: Psychedelics such as psilocybin have been shown to have persistent antidepressant effects, but with considerable individual variability in optimal dosing. Intravenous (IV) dosing is rapid onset and quickly titrated, possibly preceded by an anxiolytic for patient comfort. We explored the viability of IV psilocin with and without preadministratio...
Psilocybin is a serotonergic psychedelic shown to have enduring antidepressant effects. Currently, the mechanism for its enduring effects is not well understood. Empathy and prosocial behavior may be important for understanding the therapeutic benefit of psilocybin. In this article we review the effect of psilocybin on empathy and prosocial behavior. Moreove...
Psychedelic substances induce profound alterations in consciousness. Careful preparation is therefore essential to limit adverse reactions, enhance therapeutic benefits, and maintain user safety. This paper describes the development of a self-directed, digital intervention for psychedelic preparation. Drawing on elements from the UK Medical Research Council ...
A National Institute on Drug Abuse (NIDA)-funded study published in the journal Drug and Alcohol Dependence titled “National and Regional Trends in Seizures of Shrooms (Psilocybin) in the United States, 2017-2022” reported a significant increase in law enforcement seizures of psilocybin mushrooms, also known as “magic mushrooms” or “shrooms,” in the United S...
This pilot study investigated psilocybin-induced changes in neural reactivity to alcohol and emotional cues in patients with alcohol use disorder (AUD). Participants were recruited from a phase II, randomized, double-blind, placebo-controlled clinical trial investigating psilocybin-assisted therapy (PAT) for the treatment of AUD (NCT02061293). Eleven adult p...
Do psychedelics affect sexual functioning postacutely? Anecdotal and qualitative evidence suggests they do, but this has never been formally tested. While sexual functioning and satisfaction are generally regarded as an important aspect of human wellbeing, sexual dysfunction is a common symptom of mental health disorders. It is also a common side effect of s...
Psilocybin is the most researched classic psychedelic for Treatment-Resistant Depression (TRD). While optimizing set and setting are considered essential for efficacy and safety, patient perspectives on these aspects have rarely been investigated. To address this knowledge gap, the current paper explored the experiences of 11 TRD patients (8 women, 3 men) pa...
