Tieteelliset julkaisut

Tulokset kategoriasta menetelmat hakusanalla Lumekontrolloitu. Takaisin


Therapeutic effect of increased openness: Investigating mechanism of action in MDMA-assisted psychotherapy. (Wagner MT, Mithoefer MC, Mithoefer AT, MacAulay RK, Jerome L.., 2017)
Julkaisu:Journal of Psychopharmacology
Tiivistelmä: A growing body of research suggests that traumatic events lead to persisting personality change characterized by increased neuroticism. Relevantly, enduring improvements in Post-Traumatic Stress Disorder (PTSD) symptoms have been found in response to 3,4-methylenedioxymethamphetamine (MDMA)-assisted psychotherapy.

There is evidence that lasting changes in the personality feature of "openness" occur in response to hallucinogens, and that this may potentially act as a therapeutic mechanism of change. The present study investigated whether heightened Openness and decreased Neuroticism served as a mechanism of change within a randomized trial of MDMA-assisted psychotherapy for chronic, treatment-resistant PTSD. The Clinician-Administered PTSD Scale (CAPS) Global Scores and NEO PI-R Personality Inventory (NEO) Openness and Neuroticism Scales served as outcome measures.

Results indicated that changes in Openness but not Neuroticism played a moderating role in the relationship between reduced PTSD symptoms and MDMA treatment. Following MDMA-assisted psychotherapy, increased Openness and decreased Neuroticism when comparing baseline personality traits with long-term follow-up traits also were found.

These preliminary findings suggest that the effect of MDMA-assisted psychotherapy extends beyond specific PTSD symptomatology and fundamentally alters personality structure, resulting in long-term persisting personality change. Results are discussed in terms of possible mechanisms of psychotherapeutic change.
Yhdiste:MDMA
Aihe:Yleiset vaikutukset, stressihäiriö
Menetelmät:Kaksoissokkoutettu, lumekontrolloitu, satunnaistettu, haastattelu, seuranta
Otoskoko:20
Muuta:Tutkimus on jatkoa artikkelille Mithoefer ym. (2011).
Tagit:
DOI:10.1177/0269881117711712
URL: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5544120/


Psilocybin produces substantial and sustained decreases in depression and anxiety in patients with life-threatening cancer: A randomized double-blind trial. (Griffiths RR, Johnson MW, Carducci MA, Umbricht A, Richards .., 2016)
Julkaisu:Journal of Psychopharmacology
Tiivistelmä: Cancer patients often develop chronic, clinically significant symptoms of depression and anxiety. Previous studies suggest that psilocybin may decrease depression and anxiety in cancer patients. The effects of psilocybin were studied in 51 cancer patients with life-threatening diagnoses and symptoms of depression and/or anxiety.

This randomized, double-blind, cross-over trial investigated the effects of a very low (placebo-like) dose (1 or 3 mg/70 kg) vs. a high dose (22 or 30 mg/70 kg) of psilocybin administered in counterbalanced sequence with 5 weeks between sessions and a 6-month follow-up. Instructions to participants and staff minimized expectancy effects. Participants, staff, and community observers rated participant moods, attitudes, and behaviors throughout the study.

High-dose psilocybin produced large decreases in clinician- and self-rated measures of depressed mood and anxiety, along with increases in quality of life, life meaning, and optimism, and decreases in death anxiety. At 6-month follow-up, these changes were sustained, with about 80% of participants continuing to show clinically significant decreases in depressed mood and anxiety. Participants attributed improvements in attitudes about life/self, mood, relationships, and spirituality to the high-dose experience, with >80% endorsing moderately or greater increased well-being/life satisfaction. Community observer ratings showed corresponding changes. Mystical-type psilocybin experience on session day mediated the effect of psilocybin dose on therapeutic outcomes.
Yhdiste:psilosybiini
Aihe:kuolemaan liittyvä ahdistus, masennus
Menetelmät:vaihtovuoroinen, kaksoissokkoutettu, lumekontrolloitu, seuranta
Otoskoko:56
Muuta:
Tagit: kuolemaan liittyvä ahdistus, masennus, psilosybiini
DOI:10.1177/0269881116675513
URL: http://journals.sagepub.com/doi/pdf/10.1177/0269881116675513


The paradoxical psychological effects of lysergic acid diethylamide (LSD) (Carhart-Harris RL, Kaelen M, Bolstridge M, Williams TM, Will.., 2016)
Julkaisu:Psychological Medicine
Tiivistelmä: 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.
Yhdiste:LSD
Aihe:Yleiset vaikutukset
Menetelmät:Lumekontrolloitu, seuranta
Otoskoko:20
Muuta:
Tagit:
DOI:10.1017/S0033291715002901
URL: https://www.cambridge.org/core/journals/psychological-medicine/ar...


Rapid and sustained symptom reduction following psilocybin treatment for anxiety and depression in patients with life-threatening cancer: a randomized controlled trial (Ross S, Bossis A, Guss J, Agin-Liebes G, Malone T, Cohen B, .., 2016)
Julkaisu:Journal of Psychopharmacology
Tiivistelmä: Tausta: Ahdistus ja masennusoireilu ovat yleisiä potilailla, joilla on pitkälle edennyt syöpäsairaus. Psykiatrinen oireilu on yhteydessä huonompaan hoidon ennusteeseen. Aiemmat tutkimustulokset viittaavat psilosybiinin soveltuvan syöpäsairauteen liittyvän ahdistuksen ja masennuksen hoitoon.

Metodit: Tässä satunnaistetussa plasebokontrolloidussa ristikkäistutkimuksessa 29 syöpää sairastavaa potilasta, joilla oli sairauteensa liittyvää ahdistusta ja masennusta saivat satunnaistetusti psykoterapian yhteydessä yhden annoksen joko psilosybiiniä (0.3mg/kg) tai niasiinia. Hoidon vaikuttavuutta arvioitiin ahdistus- ja masennusmittauksilla ennen koe- ja kontrolliryhmien yhdistämistä 7 viikkoa hoidon jälkeen.

Tulokset: Koehenkilöiden ahdistuneisuudessa ja mielialassa havaittiin tilastollisesti merkitseviä positiivisia muutoksia psilosybiinin jälkeen ennen koe- ja kontrolliryhmien yhdistämistä. Lisäksi syöpään liittyvässä toivottomuudessa ja demoralisaatiossa havaittiin laskua. Myös koehenkilöiden henkinen hyvinvointi ja elämänlaatu kohenivat. Kuuden kuukauden seurannassa psilosybiinin ahdistusta ja masentuneisuutta lieventävät vaikutukset säilyivät (60-80 % koehenkilöistä havaittiin kliinisesti merkitsevää vaikutusta ahdistukseen ja masentuneisuuteen). Seurannassa psilosybiini oli yhteydessä eksistentiaalisen ahdingon helpottumiseen, kohonneeseen elämänlaatuun ja muuntuneeseen asenteeseen kuolemaa kohtaan. Psilosybiinin terapeuttiset vaikutukset välittyivät sen tuottaman mystisen kokemuksen kautta.

Johtopäätökset: Kerta-annoksinen psilosybiiniavusteinen psykoterapia tuotti nopeita ja pysyviä muutoksia syöpää sairastavien potilaiden sairauteen liittyvässä masentuneisuudessa ja ahdistuneisuudessa.
Yhdiste:psilosybiini
Aihe:kuolemaan liittyvä ahdistus, masennus
Menetelmät:Kaksoissokkoutettu, lumekontrolloitu, vaihtovuoroinen
Otoskoko:29
Muuta:
Tagit: kuolemaan liittyvä ahdistus, masennus, psilosybiini
DOI:10.1177/0269881116675512
URL: http://journals.sagepub.com/doi/full/10.1177/0269881116675512


Treating posttraumatic stress disorder with MDMA-assisted psychotherapy: A preliminary meta-analysis and comparison to prolonged exposure therapy. (Amoroso T, Workman M, 2016)
Julkaisu:Journal of Psychopharmacology
Tiivistelmä: Since the wars in Iraq and Afghanistan, posttraumatic stress disorder (PTSD) has become a major area of research and development. The most widely accepted treatment for PTSD is prolonged exposure (PE) therapy, but for many patients it is intolerable or ineffective. ±3,4-methylenedioxymethamphetamine (MDMA)-assisted psychotherapy (MDMA-AP) has recently re-emerged as a new treatment option, with two clinical trials having been published and both producing promising results. However, these results have yet to be compared to existing treatments.

The present paper seeks to bridge this gap in the literature. Often the statistical significance of clinical trials is overemphasized, while the magnitude of the treatment effects is overlooked. The current meta-analysis aims to provide a comparison of the cumulative effect size of the MDMA-AP studies with those of PE. Effect sizes were calculated for primary and secondary outcome measures in the MDMA-AP clinical trials and compared to those of a meta-analysis including several PE clinical trials.

It was found that MDMA-AP had larger effect sizes in both clinician-observed outcomes than PE did (Hedges' g=1.17 vs. g=1.08, respectively) and patient self-report outcomes (Hedges' g=0.87 vs. g=0.77, respectively). The dropout rates of PE and MDMA-AP were also compared, revealing that MDMA-AP had a considerably lower percentage of patients dropping out than PE did. These results suggest that MDMA-AP offers a promising treatment for PTSD.
Yhdiste:MDMA
Aihe:Stressihäiriö, haitta-arvio
Menetelmät:Meta-analyysi, kaksoissokkoutettu, satunnaistettu, lumekontrolloitu
Otoskoko:0
Muuta:
Tagit:
DOI:10.1177/0269881116642542
URL: http://journals.sagepub.com/doi/abs/10.1177/0269881116642542


Acute Effects of Lysergic Acid Diethylamide in Healthy Subjects. (Schmid Y, Enzler F, Gasser P, Grouzmann E, Preller KH, Volle.., 2015)
Julkaisu:Biological Psychiatry
Tiivistelmä: BACKGROUND:
After no research in humans for >40 years, there is renewed interest in using lysergic acid diethylamide (LSD) in clinical psychiatric research and practice. There are no modern studies on the subjective and autonomic effects of LSD, and its endocrine effects are unknown. In animals, LSD disrupts prepulse inhibition (PPI) of the acoustic startle response, and patients with schizophrenia exhibit similar impairments in PPI. However, no data are available on the effects of LSD on PPI in humans.

METHODS:
In a double-blind, randomized, placebo-controlled, crossover study, LSD (200 μg) and placebo were administered to 16 healthy subjects (8 women, 8 men). Outcome measures included psychometric scales; investigator ratings; PPI of the acoustic startle response; and autonomic, endocrine, and adverse effects.

RESULTS:
Administration of LSD to healthy subjects produced pronounced alterations in waking consciousness that lasted 12 hours. The predominant effects induced by LSD included visual hallucinations, audiovisual synesthesia, and positively experienced derealization and depersonalization phenomena. Subjective well-being, happiness, closeness to others, openness, and trust were increased by LSD. Compared with placebo, LSD decreased PPI. LSD significantly increased blood pressure, heart rate, body temperature, pupil size, plasma cortisol, prolactin, oxytocin, and epinephrine. Adverse effects produced by LSD completely subsided within 72 hours. No severe acute adverse effects were observed.

CONCLUSIONS:
In addition to marked hallucinogenic effects, LSD exerts methylenedioxymethamphetamine-like empathogenic mood effects that may be useful in psychotherapy. LSD altered sensorimotor gating in a human model of psychosis, supporting the use of LSD in translational psychiatric research. In a controlled clinical setting, LSD can be used safely, but it produces significant sympathomimetic stimulation.
Yhdiste:LSD
Aihe:haitta-arvio, yleiset vaikutukset
Menetelmät:kaksoissokkoutettu, satunnaistettu, lumekontrolloitu, vaihtovuoroinen
Otoskoko:16
Muuta:
Tagit: LSD
DOI:10.1016/j.biopsych.2014.11.015
URL: https://www.biologicalpsychiatryjournal.com/article/S0006-3223(14...


Safety and efficacy of lysergic acid diethylamide-assisted psychotherapy for anxiety associated with life-threatening diseases. (Gasser P, Holstein D, Michel Y, Doblin R, Yazar-Klosinski B,.., 2014)
Julkaisu:The Journal of Nervous and Mental disease
Tiivistelmä: A double-blind, randomized, active placebo-controlled pilot study was conducted to examine safety and efficacy of lysergic acid diethylamide (LSD)-assisted psychotherapy in 12 patients with anxiety associated with life-threatening diseases.

Treatment included drug-free psychotherapy sessions supplemented by two LSD-assisted psychotherapy sessions 2 to 3 weeks apart. The participants received either 200 μg of LSD (n = 8) or 20 μg of LSD with an open-label crossover to 200 μg of LSD after the initial blinded treatment was unmasked (n = 4).

At the 2-month follow-up, positive trends were found via the State-Trait Anxiety Inventory (STAI) in reductions in trait anxiety (p = 0.033) with an effect size of 1.1, and state anxiety was significantly reduced (p = 0.021) with an effect size of 1.2, with no acute or chronic adverse effects persisting beyond 1 day after treatment or treatment-related serious adverse events. STAI reductions were sustained for 12 months.

These results indicate that when administered safely in a methodologically rigorous medically supervised psychotherapeutic setting, LSD can reduce anxiety, suggesting that larger controlled studies are warranted.
Yhdiste:LSD
Aihe:kuolemaan liittyvä ahdistus
Menetelmät:kaksoissokkoutettu, satunnaistettu, lumekontrolloitu, seuranta
Otoskoko:12
Muuta:
Tagit: LSD, pilotti
DOI:10.1097/NMD.0000000000000113
URL: https://journals.lww.com/jonmd/fulltext/2014/07000/Safety_and_Eff...


A randomized, controlled pilot study of MDMA (±3,4-Methylenedioxymethamphetamine)- assisted psychotherapy for treatment of resistant, chronic Post-Traumatic Stress Disorder (PTSD). (Oehen P, Traber R, Widmer V, Schnyder U, 2013)
Julkaisu:Journal of Psychopharmacology
Tiivistelmä: Psychiatrists and psychotherapists in the US (1970s to 1985) and Switzerland (1988–1993) used MDMA legally as a prescription drug, to enhance the effectiveness of psychotherapy. Early reports suggest that it is useful in treating trauma-related disorders. Recently, the first completed pilot study of MDMA-assisted psychotherapy for PTSD yielded encouraging results.

Designed to test the safety and efficacy of MDMA-assisted psychotherapy in patients with treatment-resistant PTSD; our randomized, double-blind, active-placebo controlled trial enrolled 12 patients for treatment with either low-dose (25 mg, plus 12.5 mg supplemental dose) or full-dose MDMA (125 mg, plus 62.5 mg supplemental dose). MDMA was administered during three experimental sessions, interspersed with weekly non-drug-based psychotherapy sessions. Outcome measures used were the Clinician-Administered PTSD Scale (CAPS) and the Posttraumatic Diagnostic Scale (PDS). Patients were assessed at baseline, three weeks after the second and third MDMA session (end of treatment), and at the 2-month and 1-year follow-ups.

We found that MDMA-assisted psychotherapy can be safely administered in a clinical setting. No drug-related serious adverse events occurred. We did not see statistically significant reductions in CAPS scores (p = 0.066), although there was clinically and statistically significant self-reported (PDS) improvement (p = 0.014). CAPS scores improved further at the 1-year follow-up. In addition, three MDMA sessions were more effective than two (p = 0.016).
Yhdiste:MDMA
Aihe:stressihäiriö
Menetelmät:Kaksoissokkoutettu, lumekontrolloitu, satunnaistettu, seuranta
Otoskoko:12
Muuta:
Tagit: MDMA, PTSD
DOI:10.1177/0269881112464827
URL: http://journals.sagepub.com/doi/abs/10.1177/0269881112464827


The safety and efficacy of 3,4-methylenedioxymethamphetamine- assisted psychotherapy in subjects with chronic, treatment-resistant posttraumatic stress disorder: the first randomized controlled pilot study (Mithoefer MC, Wagner MT, Mithoefer AT, Jerome L, Doblin R, 2011)
Julkaisu:Journal of Psychopharmacology
Tiivistelmä: Case reports indicate that psychiatrists administered 3,4-methylenedioxymethamphetamine (MDMA) as a catalyst to psychotherapy before recreational use of MDMA as ‘Ecstasy’ resulted in its criminalization in 1985.

Over two decades later, this study is the first completed clinical trial evaluating MDMA as a therapeutic adjunct. Twenty patients with chronic posttraumatic stress disorder, refractory to both psychotherapy and psychopharmacology, were randomly assigned to psychotherapy with concomitant active drug (n = 12) or inactive placebo (n = 8) administered during two 8-h experimental psychotherapy sessions. Both groups received preparatory and follow-up non-drug psychotherapy.

The primary outcome measure was the Clinician-Administered PTSD Scale, administered at baseline, 4 days after each experimental session, and 2 months after the second session. Neurocognitive testing, blood pressure, and temperature monitoring were performed.

After 2-month follow-up, placebo subjects were offered the option to re-enroll in the experimental procedure with open-label MDMA. Decrease in Clinician-Administered PTSD Scale scores from baseline was significantly greater for the group that received MDMA than for the placebo group at all three time points after baseline.

The rate of clinical response was 10/12 (83%) in the active treatment group versus 2/8 (25%) in the placebo group. There were no drug-related serious adverse events, adverse neurocognitive effects or clinically significant blood pressure increases. MDMA-assisted psychotherapy can be administered to posttraumatic stress disorder patients without evidence of harm, and it may be useful in patients refractory to other treatments.
Yhdiste:MDMA
Aihe:stressihäiriö
Menetelmät:Kaksoissokkoutettu, lumekontrolloitu, satunnaistettu, seuranta
Otoskoko:20
Muuta:
Tagit: MDMA, PTSD
DOI:10.1177/0269881110378371
URL: http://journals.sagepub.com/doi/full/10.1177/0269881110378371


Pilot study of psilocybin treatment for anxiety in patients with advanced-stage cancer (Grob CS, Danforth AL, Chopra GS, Hagerty M, McKay CR, Halber.., 2011)
Julkaisu:Archives of General Psychiatry
Tiivistelmä: Tarkoitus: Tutkimuksessa arvioidaan hallusinogeenien kliinistä soveltuvuutta ahdistuksen hoitoon, joka on syntynyt reaktiona pitkälle edenneeseen syöpään.

Koeasetelma: Psilosybiinin (0.2 mg/kg) tehoa ja turvallisuutta tutkittiin plasebokontrolloidulla kaksoissokko asetelmalla, jossa koehenkilöt toimivat omana kontrollinaan.

Koehenkilöt: 12 pitkälle edennyttä syöpää sairastavaa aikuista, joilla on myös kuolemaan liittyvää ahdistusta.

Käytetyt mittarit: Koehenkilöiden kehon lämpötilaa ja verenapainetta mitattiin kokeen aikana ja sitä ennen. Seurantamittaukset sisälsivät BDI (Beck Depression Inventory), POMS (Profile of Mood States) ja STAI (State-Trait Anxiety Inventory) asteikot, joihin koehenkilöt vastasivat sokkoutuksen purkamisen jälkeen kuuden kuukauden ajan.

Tulokset: Fysiologisten vasteiden ja psykologisten mittausten perusteella arvioituna hoito vaikutti turvalliselta. Psilosybiini ei aiheuttanut koehenkilöille kliinisesti merkittävää haittaa. Koehenkilöiden ahdistustaipumuksessa havaittiin tilastollisesti merkitsevää laskua 1 ja 3 kuukautta hoidon jälkeen. BDI:llä mitattuna koehenkilöiden mielialassa havaittiin tilastollisesti merkitsevää kohenemista kuusi kuukautta hoidon jälkeen. Myös POMS mittauksissa havaittiin koehenkilöiden mielialan kohenemista, joka ei kuitenkaan ollut tilastollisesti merkitsevää.

Johtopäätökset: Tämä tutkimus osoitti psilosybiinin annostelun olevan turvallista ja soveltuvaa pitkälle edenneestä syövästä sairastuneilla potilailla, joilla on kuolemaan liittyvää ahdistusta. Osa aineistosta viittasi positiivisiin muutoksiin koehenkilöiden mielialassa ja ahdistuneisuudessa. Tulosten valossa lisätutkimus vaikuttaa perustellulta tällä pitkään sivuutetulla alalla.
Yhdiste:psilosybiini
Aihe:kuolemaan liittyvä ahdistus
Menetelmät:kaksoissokkoutettu, lumekontrolloitu, seuranta
Otoskoko:12
Muuta:
Tagit: kuolemaan liittyvä ahdistus, masennus, psilosybiini
DOI:10.1001/archgenpsychiatry.2010.116
URL: http://jamanetwork.com/journals/jamapsychiatry/fullarticle/210962


Psilocybin occasioned mystical-type experiences: immediate and persisting dose-related effects. (Griffiths RR, Johnson MW, Richards WA, Richards BD, McCann U.., 2011)
Julkaisu:Psychopharmacology
Tiivistelmä: RATIONALE:
This dose-effect study extends previous observations showing that psilocybin can occasion mystical-type experiences having persisting positive effects on attitudes, mood, and behavior.

OBJECTIVES:
This double-blind study evaluated psilocybin (0, 5, 10, 20, 30 mg/70 kg, p.o.) administered under supportive conditions.

METHODS:
Participants were 18 adults (17 hallucinogen-naïve). Five 8-h sessions were conducted individually for each participant at 1-month intervals. Participants were randomized to receive the four active doses in either ascending or descending order (nine participants each). Placebo was scheduled quasi-randomly. During sessions, volunteers used eyeshades and were instructed to direct their attention inward. Volunteers completed questionnaires assessing effects immediately after and 1 month after each session, and at 14 months follow-up.

RESULTS:
Psilocybin produced acute perceptual and subjective effects including, at 20 and/or 30 mg/70 kg, extreme anxiety/fear (39% of volunteers) and/or mystical-type experience (72% of volunteers). One month after sessions at the two highest doses, volunteers rated the psilocybin experience as having substantial personal and spiritual significance, and attributed to the experience sustained positive changes in attitudes, mood, and behavior, with the ascending dose sequence showing greater positive effects. At 14 months, ratings were undiminished and were consistent with changes rated by community observers. Both the acute and persisting effects of psilocybin were generally a monotonically increasing function of dose, with the lowest dose showing significant effects.

CONCLUSIONS:
Under supportive conditions, 20 and 30 mg/70 kg psilocybin occasioned mystical-type experiences having persisting positive effects on attitudes, mood, and behavior. Implications for therapeutic trials are discussed.
Yhdiste:Psilosybiini
Aihe:Yleiset vaikutukset
Menetelmät:Kaksoissokkoutettu, lumekontrolloitu, seuranta
Otoskoko:18
Muuta:
Tagit:
DOI:10.1007/s00213-011-2358-5
URL: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3308357/


Mystical experiences occasioned by the hallucinogen psilocybin lead to increases in the personality domain of openness. (MacLean KA, Johnson MW, Griffiths RR, 2011)
Julkaisu:Journal of Psychopharmacology
Tiivistelmä: A large body of evidence, including longitudinal analyses of personality change, suggests that core personality traits are predominantly stable after age 30. To our knowledge, no study has demonstrated changes in personality in healthy adults after an experimentally manipulated discrete event.

Intriguingly, double-blind controlled studies have shown that the classic hallucinogen psilocybin occasions personally and spiritually significant mystical experiences that predict long-term changes in behaviors, attitudes and values. In the present report we assessed the effect of psilocybin on changes in the five broad domains of personality - Neuroticism, Extroversion, Openness, Agreeableness, and Conscientiousness.

Consistent with participant claims of hallucinogen-occasioned increases in aesthetic appreciation, imagination, and creativity, we found significant increases in Openness following a high-dose psilocybin session. In participants who had mystical experiences during their psilocybin session, Openness remained significantly higher than baseline more than 1 year after the session.

The findings suggest a specific role for psilocybin and mystical-type experiences in adult personality change.
Yhdiste:Psilosybiini
Aihe:Yleiset vaikutukset
Menetelmät:Kirjallisuuskatsaus, kaksoissokkoutettu, lumekontrolloitu, seuranta
Otoskoko:0
Muuta:
Tagit:
DOI:10.1177/0269881111420188
URL: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3537171/


Mystical-type experiences occasioned by psilocybin mediate the attribution of personal meaning and spiritual significance 14 months later. (Griffiths R, Richards W, Johnson M, McCann U, Jesse R, 2008)
Julkaisu:Journal of Psychopharmacology
Tiivistelmä: Psilocybin has been used for centuries for religious purposes; however, little is known scientifically about its long-term effects. We previously reported the effects of a double-blind study evaluating the psychological effects of a high psilocybin dose.

This report presents the 14-month follow-up and examines the relationship of the follow-up results to data obtained at screening and on drug session days. Participants were 36 hallucinogen-naïve adults reporting regular participation in religious/ spiritual activities. Oral psilocybin (30 mg/70 kg) was administered on one of two or three sessions, with methylphenidate (40 mg/70 kg) administered on the other session(s).

During sessions, volunteers were encouraged to close their eyes and direct their attention inward. At the 14-month follow-up, 58% and 67%, respectively, of volunteers rated the psilocybin-occasioned experience as being among the five most personally meaningful and among the five most spiritually significant experiences of their lives; 64% indicated that the experience increased well-being or life satisfaction; 58% met criteria for having had a 'complete' mystical experience. Correlation and regression analyses indicated a central role of the mystical experience assessed on the session day in the high ratings of personal meaning and spiritual significance at follow-up. Of the measures of personality, affect, quality of life and spirituality assessed across the study, only a scale measuring mystical experience showed a difference from screening.

When administered under supportive conditions, psilocybin occasioned experiences similar to spontaneously occurring mystical experiences that, at 14-month follow-up, were considered by volunteers to be among the most personally meaningful and spiritually significant of their lives.
Yhdiste:Psilosybiini
Aihe:Yleiset vaikutukset
Menetelmät:kaksoissokkoutettu, lumekontrolloitu, seuranta
Otoskoko:36
Muuta:Seurantatutkimus tutkimuksesta Griffiths ym. (2006).
Tagit:
DOI:10.1177/0269881108094300
URL: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3050654/


MDMA-assisted psychotherapy using low doses in a small sample of women with chronic posttraumatic stress disorder. (Bouso JC, Doblin R, Farré M, Alcázar MA, Gómez-Jarabo G, 2008)
Julkaisu:Journal of Psychoactive Drugs
Tiivistelmä: The purpose of this study was to investigate the safety of different doses of MDMA-assisted psychotherapy administered in a psychotherapeutic setting to women with chronic PTSD secondary to a sexual assault, and also to obtain preliminary data regarding efficacy. Although this study was originally planned to include 29 subjects, political pressures led to the closing of the study before it could be finished, at which time only six subjects had been treated. Preliminary results from those six subjects are presented here. We found that low doses of MDMA (between 50 and 75 mg) were both psychologically and physiologically safe for all the subjects. Future studies in larger samples and using larger doses are needed in order to further clarify the safety and efficacy of MDMA in the clinical setting in subjects with PTSD.
Yhdiste:MDMA
Aihe:stressihäiriö
Menetelmät:Kaksoissokkoutettu, satunnaistettu, lumekontrolloitum seuranta
Otoskoko:6
Muuta:
Tagit:
DOI:10.1080/02791072.2008.10400637
URL: https://www.ncbi.nlm.nih.gov/pubmed/19004414


Psilocybin can occasion mystical-type experiences having substantial and sustained personal meaning and spiritual significance. (Griffiths RR, Richards WA, McCann U, Jesse R, 2006)
Julkaisu:Psychopharmacology
Tiivistelmä: RATIONALE:
Although psilocybin has been used for centuries for religious purposes, little is known scientifically about its acute and persisting effects.

OBJECTIVES:
This double-blind study evaluated the acute and longer-term psychological effects of a high dose of psilocybin relative to a comparison compound administered under comfortable, supportive conditions.

MATERIALS AND METHODS:
The participants were hallucinogen-naïve adults reporting regular participation in religious or spiritual activities. Two or three sessions were conducted at 2-month intervals. Thirty volunteers received orally administered psilocybin (30 mg/70 kg) and methylphenidate hydrochloride (40 mg/70 kg) in counterbalanced order. To obscure the study design, six additional volunteers received methylphenidate in the first two sessions and unblinded psilocybin in a third session. The 8-h sessions were conducted individually. Volunteers were encouraged to close their eyes and direct their attention inward. Study monitors rated volunteers' behavior during sessions. Volunteers completed questionnaires assessing drug effects and mystical experience immediately after and 2 months after sessions. Community observers rated changes in the volunteer's attitudes and behavior.

RESULTS:
Psilocybin produced a range of acute perceptual changes, subjective experiences, and labile moods including anxiety. Psilocybin also increased measures of mystical experience. At 2 months, the volunteers rated the psilocybin experience as having substantial personal meaning and spiritual significance and attributed to the experience sustained positive changes in attitudes and behavior consistent with changes rated by community observers.

CONCLUSIONS:
When administered under supportive conditions, psilocybin occasioned experiences similar to spontaneously occurring mystical experiences. The ability to occasion such experiences prospectively will allow rigorous scientific investigations of their causes and consequences.
Yhdiste:Psilosybiini
Aihe:Yleiset vaikutukset
Menetelmät:kaksoissokkoutettu, lumekontrolloitu, seuranta
Otoskoko:30
Muuta:
Tagit:
DOI:10.1007/s00213-006-0457-5
URL: https://link.springer.com/article/10.1007%2Fs00213-006-0457-5