OPEN Foundation

Search
Close this search box.

Personal development

Modern Clinical Research on LSD

Abstract

All modern clinical studies using the classic hallucinogen lysergic acid diethylamide (LSD) in healthy subjects or patients in the last 25 years are reviewed herein. There were five recent studies in healthy participants and one in patients. In a controlled setting, LSD acutely induced bliss, audiovisual synesthesia, altered meaning of perceptions, derealization, depersonalization, and mystical experiences. These subjective effects of LSD were mediated by the 5-HT2A receptor. LSD increased feelings of closeness to others, openness, trust, and suggestibility. LSD impaired the recognition of sad and fearful faces, reduced left amygdala reactivity to fearful faces, and enhanced emotional empathy. LSD increased the emotional response to music and the meaning of music. LSD acutely produced deficits in sensorimotor gating, similar to observations in schizophrenia. LSD had weak autonomic stimulant effects and elevated plasma cortisol, prolactin, and oxytocin levels. Resting state functional magnetic resonance studies showed that LSD acutely reduced the integrity of functional brain networks and increased connectivity between networks that normally are more dissociated. LSD increased functional thalamocortical connectivity and functional connectivity of the primary visual cortex with other brain areas. The latter effect was correlated with subjective hallucinations. LSD acutely induced global increases in brain entropy that were associated with greater trait openness 14 day later. In patients with anxiety associated with life-threatening disease, anxiety was reduced for 2 months after two doses of LSD. In medical settings, no complications of LSD administration were observed. These data should contribute to further investigations of the therapeutic potential of LSD in psychiatry.

Liechti, M. E. (2017). Modern Clinical Research on LSD. Neuropsychopharmacology. 10.1038/npp.2017.86
Link to full text

Hallucinogenic Drugs: A New Study Answers Old Questions about LSD

Abstract

LSD induces profound psychedelic effects, including changes in the meaning of percepts. The subjective effects of LSD are fully blocked by a 5-HT2A receptor antagonist. LSD may alter meaningfulness by increasing activity in cortical regions responsible for processing personal attribution.

Halberstadt, A. L. (2017). Hallucinogenic Drugs: A New Study Answers Old Questions about LSD. Current Biology, 27(4), R156-R158. 10.1016/j.cub.2016.12.058
Link to full text

Psychological effects of MDMA

Abstract

Zinberg’s Interaction Model implies that the content of a drug-induced experience is a function of the pharmacological properties of the drug, the set (the user’s characteristics e.g. motivation and personality), and the setting (the physical and social context). The current research investigated the function of the set and setting and their role in shaping the psychological effects of 3,4-methylenedioxmethamphetamine (MDMA), as well as their role in reducing the risk of drug abuse.
An online survey was distributed among adult MDMA polydrug users (n = 158) and MDMA-naïve controls (alcohol, nicotine and cannabis users, n = 138). Participants answered questions regarding their pattern of drug use, their motivation for MDMA use and the setting (e.g. clubbing, home with friends), as well as the subjective effects of MDMA. Participants also completed a range of self-report measures of self-reflection and insight, emotional intelligence, and personality, as well as a drug dependency measure.
MDMA users displayed higher levels of self-reflection and insight, openness to new experience and lower levels of neuroticism and conscientiousness, in comparison to the control group. The significant predictors of self-reflection and insight were openness, emotional intelligence, MDMA use, extraversion and neuroticism. When the analysis was rerun only for the MDMA group, the significant predictors of self-reflection and insight were openness, emotional intelligence and self-insight effects of MDMA. High levels of self-reported negative effects of MDMA were predictors of a problematic drug use.
These findings suggest that there might be a relationship between MDMA use and higher levels of self-reflection and insight; however, longitudinal studies are required to further investigate the causality of this relationship. The results add to existing evidence that MDMA has potential for altering emotional experiences. Further research utilising a prospective design is warranted.

Wieliczko, M. J. (2016). Psychological effects of MDMA (Doctoral dissertation, Canterbury Christ Church University).

Link to full text

The Entheogen Reformation

Abstract

In addition to promising leads for treating PTSD, addictions, depression, and death anxiety, 21st Century research at medical schools finds that with careful screening, insightful attention to the variables of set, setting, and dosage, psychedelic drug administration often facilitates significant spiritual experiences, meaningfulness, altruism, well-being, and similar prospiritual effects. This article calls for theologians, professors of religious studies, philosophy, sociology, and psychology to update their courses. It challenges leaders of religious organizations, ‘‘How can your institution incorporate these practices and benefit from them?’’

Roberts, T. B. (2016). THE ENTHEOGEN REFORMATION. Association for Transpersonal Psychology, 26.

Link to full text

Psychological and neuropsychological assessment of regular hoasca users

Abstract

BACKGROUND: Hoasca (also called ayahuasca) is a N,N-dimethyltryptamine (DMT) – containing psychedelic brew originally used for magico-religious purposes by Amerindian populations of the Amazon Basin. Recently, Brazilian syncretic churches have helped spread the ritual use of hoasca to Western societies. The aim of this study was to evaluate substance use, and neuropsychological and psychological functioning of regular hoasca users within a religious setting.

METHODS: Assessment of socio-economic status, mood, personality traits, impulsiveness, drug use, quality of life, extrinsic and intrinsic religiosity, and neuropsychological function was performed on 30 volunteers from a U.S. branch of União do Vegetal (UDV), a Brazilian religion which uses hoasca ritually. We also assessed 27 non-hoasca-using control subjects matched by socio-demographic profile and church attendance. Mann-Whitney U, chi-squared and Fisher tests were used to analyze differences between groups. Spearman’s association and simple logistic regression tests were used to analyze the impact of frequency of hoasca use on dependent variables.

RESULTS: Relative to the control group, the UDV group demonstrated lower scores for depression (p=0.043, r=.27) and confusion (p=0.032, r=.29) as assessed by the Profile of Mood States (POMS); higher scores on the instrument Big Five Inventory (BFI) for the personality traits agreeableness (p=0.028, r=.29) and openness (p=0.037, r=.28); higher scores on the quality life domain role limitations due to physical health as determined by the instrument Medical Outcomes Study Short Form-36 – SF-36 (p=0.035, r=.28); less recent use of alcohol (p<0.001, φc=.57), greater past use of alcohol to intoxication (p=0.007, φc=.36) and past use of cannabis (p=0.001, φc=.45) as measured by the Addiction Severity Index (ASI), 5th edition; better score on a measure of memory vulnerability to proactive interference as measured by the California Verbal Learning Test – CVLT (p=0.040, r=.27). Lifetime use of hoasca was positively correlated with role limitations due to physical health (p=0.032, rs=.39) and negatively associated with lifetime heavy alcohol use (p=0.034, OR=0.979).

CONCLUSIONS: The findings indicate that religious use of hoasca does not adversely affect neuropsychological functioning and may have positive effects on substance abuse and mood.

Barbosa, P. C. R., Strassman, R. J., da Silveira, D. X., Areco, K., Hoy, R., Pommy, J., … & Bogenschutz, M. (2016). Psychological and neuropsychological assessment of regular hoasca users. Comprehensive Psychiatry, 71, 95-105. 0.1016/j.comppsych.2016.09.003

Link to full text

Investigation of Personality Change Following MDMA-Assisted Psychotherapy for Post Traumatic Stress Disorder

Wagner, M., Mithoefer, M., Mithoefer, A., MacAulay, R., Jerome, L., Bazaar-Klosinski, B., & Doblin, R. (2016). B-56Investigation of Personality Change Following MDMA-Assisted Psychotherapy for Post Traumatic Stress Disorder. Archives of Clinical Neuropsychology, 31(6), 634-634. 10.1093/arclin/acw043.131
Link to full text

Lysergic acid diethylamide: a drug of ‘use’?

Abstract

Lysergic acid diethylamide (LSD), described as a classical hallucinogen, began its journey from the middle of the last century following an accidental discovery. Since then, it was used as a popular and notorious substance of abuse in various parts of the world. Its beneficial role as an adjunct to psychotherapy was much unknown, until some ‘benevolent’ experiments were carried out over time to explore some of its potential uses. But, many of its effects were unclear and seemed to be a psychedelic enigma. In this review article, we have described the receptor pharmacology, mechanism of action, effects and adverse effects of LSD on the normal body system. We have also highlighted its addictive potentials and the chances of developing tolerance. We have assimilated some of the interesting therapeutic uses of this drug, such as an antianxiety agent, a creativity enhancer, a suggestibility enhancer, and a performance enhancer. We have also described LSD to be successfully used in drug and alcohol dependence, and as a part of psychedelic peak therapy in terminally ill patients. The relevant chronological history and literature in the light of present knowledge and scenarios have been discussed. Based on available evidence, LSD could be tried therapeutically in certain specific conditions under controlled settings. But as we mention, due to all the safety concerns, the use of this nonaddictive ‘entheogen’ in actual practice warrants a lot of expertise, caution, cooperation and ethical considerations.

Das, S., Barnwal, P., Ramasamy, A., Sen, S., & Mondal, S. (2016). Lysergic acid diethylamide: a drug of ‘use’?. Therapeutic Advances in Psychopharmacology, 2045125316640440.
Link to full text

Exploring the therapeutic potential of Ayahuasca: acute intake increases mindfulness-related capacities

Abstract

BACKGROUND:

Ayahuasca is a psychotropic plant tea used for ritual purposes by the indigenous populations of the Amazon. In the last two decades, its use has expanded worldwide. The tea contains the psychedelic 5-HT2A receptor agonist N,N-dimethyltryptamine (DMT), plus β-carboline alkaloids with monoamine-oxidase-inhibiting properties. Acute administration induces an introspective dream-like experience characterized by visions and autobiographic and emotional memories. Studies of long-term users have suggested its therapeutic potential, reporting that its use has helped individuals abandon the consumption of addictive drugs. Furthermore, recent open-label studies in patients with treatment-resistant depression found that a single ayahuasca dose induced a rapid antidepressant effect that was maintained weeks after administration. Here, we conducted an exploratory study of the psychological mechanisms that could underlie the beneficial effects of ayahuasca.

METHODS:

We assessed a group of 25 individuals before and 24 h after an ayahuasca session using two instruments designed to measure mindfulness capacities: The Five Facets Mindfulness Questionnaire (FFMQ) and the Experiences Questionnaire (EQ).

RESULTS:

Ayahuasca intake led to significant increases in two facets of the FFMQ indicating a reduction in judgmental processing of experiences and in inner reactivity. It also led to a significant increase in decentering ability as measured by the EQ. These changes are classic goals of conventional mindfulness training, and the scores obtained are in the range of those observed after extensive mindfulness practice.

CONCLUSIONS:

The present findings support the claim that ayahuasca has therapeutic potential and suggest that this potential is due to an increase in mindfulness capacities.

Link to full text

Dimensions of the Psyche

Abstract

In conversation with Katherine Olivetti, Stanislav Grof and Richard Tarnas, who have collaborated for over four decades, speak candidly, exploring perinatal experience, non-ordinary states of consciousness, archetypal patterns, and astrology as a transpersonal phenomenon.

Olivetti, K. (2015). Dimensions of the Psyche: A Conversation with Stanislav Grof, MD, and Richard Tarnas, PhD. Jung Journal, 9(4), 98-124. http://dx.doi.org/10.1080/19342039.2015.1086937

Link to full text

Ayahuasca Tourism: Participants in Shamanic Rituals and their Personality Styles, Motivation, Benefits and Risks

Abstract

Ayahuasca continues to attract tourists to South America, where there has been a growth in the number of centers offering hallucinogenic ayahuasca experiences. The aims of this study were to (1) discover the reasons foreigners seek this type of experience; (2) define what an ayahuasca experience entails; (3) discover subjective perceptions of ayahuasca’s benefits and risks; and (4) describe personality styles of participants using the personality questionnaire (PSSI). Participants (N = 77) were persons who had travelled to South America to use ayahuasca. Among the most frequent motivations were curiosity, desire to treat mental health problems, need for self-knowledge, interest in psychedelic medicine, spiritual development, and finding direction in life. Frequently mentioned benefits included self-knowledge, change in the way one relates to oneself, spiritual development, improved interpersonal relations, overcoming mental and physical problems, and gaining a new perspective on life. Stated potential risks included lack of trust in the shaman or organizer, inaccurate information provided by the shaman or organizer, and exposure to dangerous situations. PSSI results showed that people using ayahuasca scored significantly above the norm on the scales of intuition, optimism, ambition, charm, and helpfulness and significantly lower on the scales of distrust and quietness.

Kavenská, V., & Simonová, H. (2015). Ayahuasca Tourism: Participants in Shamanic Rituals and their Personality Styles, Motivation, Benefits and Risks. Journal of psychoactive drugs, 1-9. http://dx.doi.org/10.1080/02791072.2015.1094590

Link to full text