OPEN Foundation

Personality

Psychedelics, Personality and Political Perspectives

Abstract

The psychedelic experience (including psychedelic-induced ego dissolution) can effect lasting change in a person’s attitudes and beliefs. Here, we aimed to investigate the association between naturalistic psychedelic use and personality, political perspectives, and nature relatedness using an anonymous internet survey. Participants (N = 893) provided information about their naturalistic psychedelic, cocaine, and alcohol use, and answered questions relating to personality traits of openness and conscientiousness (Ten-Item Personality Inventory), nature relatedness (Nature-Relatedness Scale), and political attitudes (one-item liberalism-conservatism measure and five-item libertarian-authoritarian measure). Participants also rated the degree of ego dissolution experienced during their “most intense” recalled psychedelic experience (Ego-Dissolution Inventory). Multivariate linear regression analysis indicated that lifetime psychedelic use (but not lifetime cocaine use or weekly alcohol consumption) positively predicted liberal political views, openness and nature relatedness, and negatively predicted authoritarian political views, after accounting for potential confounding variables. Ego dissolution experienced during a participant’s “most intense” psychedelic experience positively predicted liberal political views, openness and nature relatedness, and negatively predicted authoritarian political views. Further work is needed to investigate the nature of the relationship between the peak psychedelic experience and openness to new experiences, egalitarian political views, and concern for the environment.

Nour, M. M., Evans, L., & Carhart-Harris, R. L. (2017). Psychedelics, Personality and Political Perspectives. Journal of Psychoactive Drugs, 1-10. 10.1080/02791072.2017.1312643
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Limitations to ‘Psychedelics and the science of self experience’

Abstract

We read Matthew Nour and Robin Carhart-Harris editorial with enthusiasm. The Section History Ethics & Philosophy of Psychiatry Queensland meets once a month in the Brisbane area. The writers of this eLetter met at the end of March 2017and discussed this editorial. We congratulate and we agree with Derek K Tracy in “highlights of this issue” that it is a mesmerising read. We found that the editorial is well composed, interesting in its logic and we notice the structure to the editorial. There are 6 separate headings: defining the self, self in neuroscience, self disturbance , psychedelics as a window into the self, therapeutic implications, and conclusions. We discussed that overall the paper only presents a reductionist, non-compatabilist, materialist theory of self, which becomes a fallacy of a circular argument. For the purpose of this editorial such a reduction of a complex philosophical area is indeed suitable, but ignores other models and we miss a paragraph on these limitations. We feel that it would have assisted if there had been frank comments on the reductionist approach and the diverse facets to self relevant to psychiatry.
The quantitative meta analysis locates self experience to default mode network in a cortical median and anterior cingulate brain anatomy. Other theories of the self in the light of memories and emotions for example, made us curious about FMRI findings in the amygdala and hippocampal areas. However acknowledging FMRI as “correlation”, the subtext is identity with the subject of the correlation.
We were reminded that after all the self is a very complex philosophical area that preoccupied many eminent thinkers in the past (Remes P& Sihvola) We believe that also a discussion of other pathologies of self, multiple selves associated with dissociation and multiple personality disorder would have been more inclusive. We were curious about the role of language especially in people who speak several languages as the narrative (McAdams) of the self is based on semantics.
We believe that a paragraph highlighting the limitations to the approach would have made this a more balanced editorial. Also referencing evidence on psychedelics and clinical experience of their use, references that highlight a number of the risks and side effects (Larsen JK and Johnson M et al) would have added . There are merits in to including that psychedelics are also a potential double edged sword.
Beckmann, K. M., Brennan, R., & Arnold, J. (2017). Limitations to’Psychedelics and the science of self experience’.
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Limitations to 'Psychedelics and the science of self experience'

Abstract

We read Matthew Nour and Robin Carhart-Harris editorial with enthusiasm. The Section History Ethics & Philosophy of Psychiatry Queensland meets once a month in the Brisbane area. The writers of this eLetter met at the end of March 2017and discussed this editorial. We congratulate and we agree with Derek K Tracy in “highlights of this issue” that it is a mesmerising read. We found that the editorial is well composed, interesting in its logic and we notice the structure to the editorial. There are 6 separate headings: defining the self, self in neuroscience, self disturbance , psychedelics as a window into the self, therapeutic implications, and conclusions. We discussed that overall the paper only presents a reductionist, non-compatabilist, materialist theory of self, which becomes a fallacy of a circular argument. For the purpose of this editorial such a reduction of a complex philosophical area is indeed suitable, but ignores other models and we miss a paragraph on these limitations. We feel that it would have assisted if there had been frank comments on the reductionist approach and the diverse facets to self relevant to psychiatry.
The quantitative meta analysis locates self experience to default mode network in a cortical median and anterior cingulate brain anatomy. Other theories of the self in the light of memories and emotions for example, made us curious about FMRI findings in the amygdala and hippocampal areas. However acknowledging FMRI as “correlation”, the subtext is identity with the subject of the correlation.
We were reminded that after all the self is a very complex philosophical area that preoccupied many eminent thinkers in the past (Remes P& Sihvola) We believe that also a discussion of other pathologies of self, multiple selves associated with dissociation and multiple personality disorder would have been more inclusive. We were curious about the role of language especially in people who speak several languages as the narrative (McAdams) of the self is based on semantics.
We believe that a paragraph highlighting the limitations to the approach would have made this a more balanced editorial. Also referencing evidence on psychedelics and clinical experience of their use, references that highlight a number of the risks and side effects (Larsen JK and Johnson M et al) would have added . There are merits in to including that psychedelics are also a potential double edged sword.
Beckmann, K. M., Brennan, R., & Arnold, J. (2017). Limitations to’Psychedelics and the science of self experience’.
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Psychedelics and the science of self-experience

Abstract

Altered self-experiences arise in certain psychiatric conditions, and may be induced by psychoactive drugs and spiritual/religious practices. Recently, a neuroscience of self-experience has begun to crystallise, drawing upon findings from functional neuroimaging and altered states of consciousness occasioned by psychedelic drugs. This advance may be of great importance for psychiatry.

Nour, M. M., & Carhart-Harris, R. L. (2017). Psychedelics and the science of self-experience. 10.1192/bjp.bp.116.194738
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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).

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Survey study of challenging experiences after ingesting psilocybin mushrooms: Acute and enduring positive and negative consequences

Abstract

Acute and enduring adverse effects of psilocybin have been reported anecdotally, but have not been well characterized. For this study, 1993 individuals (mean age 30 yrs; 78% male) completed an online survey about their single most psychologically difficult or challenging experience (worst “bad trip”) after consuming psilocybin mushrooms. Thirty-nine percent rated it among the top five most challenging experiences of his/her lifetime. Eleven percent put self or others at risk of physical harm; factors increasing the likelihood of risk included estimated dose, duration and difficulty of the experience, and absence of physical comfort and social support. Of the respondents, 2.6% behaved in a physically aggressive or violent manner and 2.7% received medical help. Of those whose experience occurred >1 year before, 7.6% sought treatment for enduring psychological symptoms. Three cases appeared associated with onset of enduring psychotic symptoms and three cases with attempted suicide. Multiple regression analysis showed degree of difficulty was positively associated, and duration was negatively associated, with enduring increases in well-being. Difficulty of experience was positively associated with dose. Despite difficulties, 84% endorsed benefiting from the experience. The incidence of risky behavior or enduring psychological distress is extremely low when psilocybin is given in laboratory studies to screened, prepared, and supported participants.

Carbonaro, T. M., Bradstreet, M. P., Barrett, F. S., MacLean, K. A., Jesse, R., Johnson, M. W., & Griffiths, R. R. (2016). Survey study of challenging experiences after ingesting psilocybin mushrooms: Acute and enduring positive and negative consequences. Journal of Psychopharmacology, 0269881116662634.
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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
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LSD-induced entropic brain activity predicts subsequent personality change

Abstract

Personality is known to be relatively stable throughout adulthood. Nevertheless, it has been shown that major life events with high personal significance, including experiences engendered by psychedelic drugs, can have an enduring impact on some core facets of personality. In the present, balanced-order, placebo-controlled study, we investigated biological predictors of post-lysergic acid diethylamide (LSD) changes in personality. Nineteen healthy adults underwent resting state functional MRI scans under LSD (75µg, I.V.) and placebo (saline I.V.). The Revised NEO Personality Inventory (NEO-PI-R) was completed at screening and 2 weeks after LSD/placebo. Scanning sessions consisted of three 7.5-min eyes-closed resting-state scans, one of which involved music listening. A standardized preprocessing pipeline was used to extract measures of sample entropy, which characterizes the predictability of an fMRI time-series. Mixed-effects models were used to evaluate drug-induced shifts in brain entropy and their relationship with the observed increases in the personality trait openness at the 2-week follow-up. Overall, LSD had a pronounced global effect on brain entropy, increasing it in both sensory and hierarchically higher networks across multiple time scales. These shifts predicted enduring increases in trait openness. Moreover, the predictive power of the entropy increases was greatest for the music-listening scans and when “ego-dissolution” was reported during the acute experience. These results shed new light on how LSD-induced shifts in brain dynamics and concomitant subjective experience can be predictive of lasting changes in personality.

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Effects of 3,4-methylenedioxymethamphetamine on socioemotional feelings, authenticity, and autobiographical disclosure in healthy volunteers in a controlled setting

Abstract

The drug 3,4-methylenedioxymethamphetamine (MDMA, “ecstasy”, “molly”) is a widely used illicit drug and experimental adjunct to psychotherapy. MDMA has unusual, poorly understood socioemotional effects, including feelings of interpersonal closeness and sociability. To better understand these effects, we conducted a small (n=12) within-subjects double-blind placebo controlled study of the effects of 1.5 mg/kg oral MDMA on social emotions and autobiographical disclosure in a controlled setting. MDMA displayed both sedative- and stimulant-like effects, including increased self-report anxiety. At the same time, MDMA positively altered evaluation of the self (i.e. increasing feelings of authenticity) while decreasing concerns about negative evaluation by others (i.e. decreasing social anxiety). Consistent with these feelings, MDMA increased how comfortable participants felt describing emotional memories. Overall, MDMA produced a prosocial syndrome that seemed to facilitate emotional disclosure and that appears consistent with the suggestion that it represents a novel pharmacological class.

Baggott, M. J., Coyle, J. R., Siegrist, J. D., Garrison, K. J., Galloway, G. P., & Mendelson, J. E. (2016). Effects of 3, 4-methylenedioxymethamphetamine on socioemotional feelings, authenticity, and autobiographical disclosure in healthy volunteers in a controlled setting. Journal of psychopharmacology (Oxford, England). dx.doi.org/10.1177/0269881115626348

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The paradoxical psychological effects of lysergic acid diethylamide (LSD).

Abstract

BACKGROUND: Lysergic acid diethylamide (LSD) is a potent serotonergic hallucinogen or psychedelic that modulates consciousness in a marked and novel way. This study sought to examine the acute and mid-term psychological effects of LSD in a controlled study.

METHOD: A total of 20 healthy volunteers participated in this within-subjects study. Participants received LSD (75 µg, intravenously) on one occasion and placebo (saline, intravenously) on another, in a balanced order, with at least 2 weeks separating sessions. Acute subjective effects were measured using the Altered States of Consciousness questionnaire and the Psychotomimetic States Inventory (PSI). A measure of optimism (the Revised Life Orientation Test), the Revised NEO Personality Inventory, and the Peter’s Delusions Inventory were issued at baseline and 2 weeks after each session.

RESULTS: LSD produced robust psychological effects; including heightened mood but also high scores on the PSI, an index of psychosis-like symptoms. Increased optimism and trait openness were observed 2 weeks after LSD (and not placebo) and there were no changes in delusional thinking.

CONCLUSIONS: The present findings reinforce the view that psychedelics elicit psychosis-like symptoms acutely yet improve psychological wellbeing in the mid to long term. It is proposed that acute alterations in mood are secondary to a more fundamental modulation in the quality of cognition, and that increased cognitive flexibility subsequent to serotonin 2A receptor (5-HT2AR) stimulation promotes emotional lability during intoxication and leaves a residue of ‘loosened cognition’ in the mid to long term that is conducive to improved psychological wellbeing.

Carhart-Harris, R. L., Kaelen, M., Bolstridge, M., Williams, T. M., Williams, L. T., Underwood, R., … & Nutt, D. J. (2016). The paradoxical psychological effects of lysergic acid diethylamide (LSD). Psychological medicine, 1-12. http://dx.doi.org/10.1017/S0033291715002901

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22 May - Delivering Effective Psychedelic Clinical Trials

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