Healthful behaviours such as maintaining a balanced diet, being physically active and refraining from smoking have major impacts on the risk of developing cancer, diabetes, cardiovascular diseases and other serious conditions. The burden of the so-called 'lifestyle diseases'-in personal suffering, premature mortality and public health costs-is considerable. ...
Abstract Importance Psilocybin therapy shows antidepressant potential; our data link its antidepressant effects to decreased brain network modularity post-treatment. Objective To assess the sub-acute impact of psilocybin on brain activity in patients with depression. Design Pre vs post-treatment resting-state functional MRI (fMRI) was recorded in two trials:...
BackgroundPsilocybin may have antidepressant properties, but direct comparisons between psilocybin and established treatments for depression are lacking.MethodsIn a phase 2, double-blind, randomized, controlled trial involving patients with long-standing, moderate-to-severe major depressive disorder, we compared psilocybin with escitalopram, a selective sero...
Healthful behaviors such as maintaining a balanced diet, being physically active, and refraining from smoking have major impacts on the risk of developing cancer, diabetes, cardiovascular diseases, and other serious conditions. The burden of the so-called “lifestyle diseases” - in personal suffering, premature mortality, and public health costs - is consider...
ObjectiveTo conduct a systematic review of modern-era (post-millennium) clinical studies assessing the therapeutic effects of serotonergic psychedelics drugs for mental health conditions. Although the main focus was on efficacy and safety, study characteristics, duration of antidepressants effects across studies, and the role of the subjective drug experienc...
Robin Carhart-Harris moved to Imperial College London in 2008 after obtaining a PhD in Psychopharmacology from the University of Bristol and an MA in Psychoanalysis from Brunel University. At Imperial, he has designed and/or carried out brain imaging studies involving LSD, psilocybin, MDMA and DMT, plus a clinical trial of psilocybin for treatment-resistant ...
BACKGROUND: Psilocybin has shown promise as a treatment for depression but its therapeutic mechanisms are not properly understood. In contrast to the presumed actions of antidepressants, we recently found increased amygdala responsiveness to fearful faces one day after open-label treatment with psilocybin (25 mg) in 19 patients with treatment-resistant depre...
Background: Evidence suggests that classical psychedelics can promote enduring changes in personality, attitudes and optimism, as well as improvements in mental health outcomes. Aim: To investigate the effects of a composite intervention, involving psilocybin, on pessimism biases in patients with treatment-resistant depression (TRD). Methods: Patients with T...
Serotonin is a key neuromodulator known to be involved in brain development, perception, cognition, and mood. However, unlike as with dopamine for example, a compelling unified theory of brain serotonin function has not yet been established. This is likely due to the exceptional complexity of the serotonin system, with its 14+ receptors, over twice the numbe...
ObjectiveTo explore whether psilocybin with psychological support modulates personality parameters in patients suffering from treatment-resistant depression (TRD).MethodTwenty patients with moderate or severe, unipolar, TRD received oral psilocybin (10 and 25 mg, one week apart) in a supportive setting. Personality was assessed at baseline and at 3-month fol...
BackgroundNatural speech analytics has seen some improvements over recent years, and this has opened a window for objective and quantitative diagnosis in psychiatry. Here, we used a machine learning algorithm applied to natural speech to ask whether language properties measured before psilocybin for treatment-resistant can predict for which patients it will ...
RationaleRecent studies have supported the safety and efficacy of psychedelic therapy for mood disorders and addiction. Music is considered an important component in the treatment model, but little empirical research has been done to examine the magnitude and nature of its therapeutic role.ObjectivesThe present study assessed the influence of music on the ac...
Introduction: It is a basic principle of the "psychedelic" treatment model that the quality of the acute experience mediates long-term improvements in mental health. In the present paper we sought to test this using data from a clinical trial assessing psilocybin for treatment-resistant depression (TRD). In line with previous reports, we hypothesized that th...
RationalePrevious research suggests that classical psychedelic compounds can induce lasting changes in personality traits, attitudes and beliefs in both healthy subjects and patient populations.AimHere we sought to investigate the effects of psilocybin on nature relatedness and libertarian-authoritarian political perspective in patients with treatment-resist...
Recent evidence indicates that psilocybin with psychological support may be effective for treating depression. Some studies have found that patients with depression show heightened amygdala responses to fearful faces and there is reliable evidence that treatment with SSRIs attenuates amygdala responses (Ma, 2015). We hypothesised that amygdala responses to e...
RationaleRecent clinical trials are reporting marked improvements in mental health outcomes with psychedelic drug-assisted psychotherapy.ObjectivesHere, we report on safety and efficacy outcomes for up to 6 months in an open-label trial of psilocybin for treatment-resistant depression.MethodsTwenty patients (six females) with (mostly) severe, unipolar, treat...
RationaleDepressed patients robustly exhibit affective biases in emotional processing which are altered by SSRIs and predict clinical outcome.ObjectivesThe objective of this study is to investigate whether psilocybin, recently shown to rapidly improve mood in treatment-resistant depression (TRD), alters patients' emotional processing biases.MethodsSeventeen ...