Journal Description
Psychoactives
Psychoactives
is an international, peer-reviewed, open access journal on psychoactive substances published quarterly online by MDPI.
- Open Access— free for readers, with article processing charges (APC) paid by authors or their institutions.
- Rapid Publication: manuscripts are peer-reviewed and a first decision is provided to authors approximately 22.5 days after submission; acceptance to publication is undertaken in 3.4 days (median values for papers published in this journal in the first half of 2024).
- Recognition of Reviewers: APC discount vouchers, optional signed peer review, and reviewer names published annually in the journal.
- Psychoactives is a companion journal of Pharmaceuticals.
Latest Articles
Integrating Psychedelics into Groupwork: A Culturally Responsive Model for the Counseling Profession
Psychoactives 2024, 3(3), 357-364; https://doi.org/10.3390/psychoactives3030022 - 18 Jul 2024
Abstract
Psychedelics, combined with talk therapy, indicate promise with challenging clients, such as those struggling with PTSD. Furthermore, groupwork, with the emphasis on social connections, can be an effective modality. There appears, however, little movement with integrating psychedelics with professional counseling and even less
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Psychedelics, combined with talk therapy, indicate promise with challenging clients, such as those struggling with PTSD. Furthermore, groupwork, with the emphasis on social connections, can be an effective modality. There appears, however, little movement with integrating psychedelics with professional counseling and even less in groupwork. Societal perceptions of psychedelics and the concern of practicing outside one’s scope may cause practitioners to hesitate. This article provides a brief overview for the lack of progression in implementing psychedelics in group counseling. I explain what potentially inhibits the utilization of psychedelics, then offer a resolution to these issues by advocating for a psychedelic-assisted groupwork (PAG) model. The argument is that psychedelic approaches can be an innovative and transformative method for group facilitators. I conclude with an overview depicting what a PAG with an interdisciplinary team could entail, including recruitment, screening, selection, therapeutic processes, and termination.
Full article
Open AccessReview
Exploring the Impact of Recreational Drugs on Suicidal Behavior: A Narrative Review
by
Rosa Maria Moret, Sergio Sanz-Gómez, Santiago Gascón-Santos and Adrián Alacreu-Crespo
Psychoactives 2024, 3(3), 337-356; https://doi.org/10.3390/psychoactives3030021 - 3 Jul 2024
Abstract
Substance use/abuse and suicide are two closely related phenomena, mostly due to neurobiological, psychological, and social impairments. In the present narrative review, the relationship between suicidal behavior (SB) and the use and abuse of common recreational drugs, such as alcohol, cannabis, cocaine, methamphetamine,
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Substance use/abuse and suicide are two closely related phenomena, mostly due to neurobiological, psychological, and social impairments. In the present narrative review, the relationship between suicidal behavior (SB) and the use and abuse of common recreational drugs, such as alcohol, cannabis, cocaine, methamphetamine, heroin, nicotine, ketamine, psilocybin, MDMA, and LSD, has been explored. Furthermore, potential mechanisms linking the two have also been examined. According to current research, all substances appear to have a deleterious effect on SB except for ketamine and psilocybin, which could potentially confer a protective effect. Further studies are needed to understand the relationship between MDMA, LSD, and suicide.
Full article
Open AccessArticle
Probiotics Alter the Microbial and Behavioral Consequences of Methamphetamine Exposure in a Sex-Selective Manner
by
Shadab Forouzan, Kristi L. Hoffman and Therese A. Kosten
Psychoactives 2024, 3(3), 318-336; https://doi.org/10.3390/psychoactives3030020 - 1 Jul 2024
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Methamphetamine use disorder (MuD) is a global health problem, with no FDA-approved medications. Our prior work demonstrated that repeated methamphetamine exposure alters the gut microbiota in male rats and results in depressive-like behaviors. In this study, we extend our findings to females and
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Methamphetamine use disorder (MuD) is a global health problem, with no FDA-approved medications. Our prior work demonstrated that repeated methamphetamine exposure alters the gut microbiota in male rats and results in depressive-like behaviors. In this study, we extend our findings to females and determine whether probiotics block these effects. Male and female rats were administered methamphetamine (2 mg/kg; SC) or saline twice daily with either a combination of two probiotics (Lactobacillus helveticus R0052 and Bifidobacterium longum R0175) or placebo solution for 14 days. Fecal samples were collected at baseline and other days after treatment cessation. Tests of anxiety- and depressive-like behaviors were conducted using open-field and forced-swim assays. Methamphetamine induced anxiety-like behavior in females and anxiety-like and depressive-like behaviors in males. Probiotics blocked the depressive-like effect in males but did not alter anxiety-like effects in either sex. Methamphetamine exposure decreased levels of alpha diversity in both sexes, but sex differences were seen in the ability of probiotics or methamphetamine to alter levels of various bacteria. These findings support the role of the gut–brain microbiome in the depressive effects of repeated methamphetamine exposure in males, suggesting that probiotics may be a viable treatment option for MuD.
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Open AccessArticle
Minorities’ Diminished Psychedelic Returns: Gender, Perceived Stigma, and Distress
by
Sean Matthew Viña
Psychoactives 2024, 3(2), 303-317; https://doi.org/10.3390/psychoactives3020019 - 2 Jun 2024
Abstract
Because psychedelics have been found to increase psychological traits like openness, mental flexibility, and interpersonal perceptiveness, some researchers believe that psychedelics could help individuals cope with the psychological effects of discrimination. However, it is still unclear whether psychedelic use can help manage the
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Because psychedelics have been found to increase psychological traits like openness, mental flexibility, and interpersonal perceptiveness, some researchers believe that psychedelics could help individuals cope with the psychological effects of discrimination. However, it is still unclear whether psychedelic use can help manage the internalized stigma that deters formal mental health treatment. This study investigates the impact of six measures of psychedelic use (MDMA, psilocybin, DMT, ayahuasca, peyote/mescaline, and LSD) on psychological distress (Kessler Psychological Distress Scale) and internalized stigma. The study used data from the National Survey of Drug Use and Health (NSDUH) from 2008 to 2019, with a sample size of 458,372 participants. Ordinary least square regression models were conducted using Stata 18. Gender analysis found that among men, ayahuasca use was linked to reduced stigma perception associated with higher distress. For women, DMT use was linked to reduced stigma perceptions when experiencing higher distress. However, results find that individuals who have used MDMA and psilocybin reported heightened perceptions of stigma associated with increased psychological distress. Among women, MDMA and psilocybin use was associated with a higher perception of stigma when they experienced distress. These findings suggest that, overall, psychedelics may not reduce the impact of distress on the perception of stigma, especially for women.
Full article
(This article belongs to the Special Issue Natural Hallucinogens in Mental Health)
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Open AccessReview
New Psychoactive Substances: Health and Legal Challenges
by
Inês C. Santos, Daniela Maia, Ricardo Jorge Dinis-Oliveira and Daniel José Barbosa
Psychoactives 2024, 3(2), 285-302; https://doi.org/10.3390/psychoactives3020018 - 1 Jun 2024
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Drug abuse represents a significant public health problem with a growing tendency. As a way of circumventing the strict national and international control of psychoactive substances by regulatory agencies, there is a market release of new substances with psychoactive activity, called New Psychoactive
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Drug abuse represents a significant public health problem with a growing tendency. As a way of circumventing the strict national and international control of psychoactive substances by regulatory agencies, there is a market release of new substances with psychoactive activity, called New Psychoactive Substances (NPSs). This group of substances encompasses a diverse range of synthetic compounds designed to mimic the effects of traditional illicit substances. As NPSs show stronger psychoactive effects than classical drugs, they pose unique challenges to public health and regulatory frameworks. Additionally, some substances are considered NPSs in some countries but not in others. Therefore, based on a given legal definition, manufacturers can create an NPS that does not fall under that definition and thus is not prohibited. This review critically explores the multifaceted dimensions of the criminal and legal contexts associated with NPSs. It examines the trends of abuse, the intricate network of criminal and legal aspects surrounding these substances, and the crucial warning signs that indicate their emergence, highlighting the health risks posed by these substances. In conclusion, this manuscript addresses the intricate interplay between the pharmacology, risks, and regulatory responses. These multifaceted challenges associated with NPSs will likely provide valuable insights for future research.
Full article
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Open AccessArticle
Evaluation of Density Functional Theory-Generated Data for Infrared Spectroscopy of Novel Psychoactive Substances Using Unsupervised Learning
by
Christiano dos Santos and Aline Thais Bruni
Psychoactives 2024, 3(2), 265-284; https://doi.org/10.3390/psychoactives3020017 - 16 May 2024
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Novel psychoactive substances (NPSs) are compounds plotted to modify the chemical structures of prohibited substances, offering alternatives for consumption and evading legislation. The prompt emergence of these substances presents challenges in health concerns and forensic assessment because of the lack of analytical standards.
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Novel psychoactive substances (NPSs) are compounds plotted to modify the chemical structures of prohibited substances, offering alternatives for consumption and evading legislation. The prompt emergence of these substances presents challenges in health concerns and forensic assessment because of the lack of analytical standards. A viable alternative for establishing these standards involves leveraging in silico methods to acquire spectroscopic data. This study assesses the efficacy of utilizing infrared spectroscopy (IRS) data derived from density functional theory (DFT) for analyzing NPSs. Various functionals were employed to generate infrared spectra for five distinct NPS categories including the following: amphetamines, benzodiazepines, synthetic cannabinoids, cathinones, and fentanyls. PRISMA software was conceived to rationalize data management. Unsupervised learning techniques, including Hierarchical Cluster Analysis (HCA), Principal Component Analysis (PCA), and t-distributed stochastic neighbor embedding (t-SNE), were utilized to refine the assessment process. Our findings reveal no significant disparities among the different functionals used to generate infrared spectra data. Additionally, the application of unsupervised learning demonstrated adequate segregation of NPSs within their respective groups. In conclusion, integrating theoretical data and dimension reduction techniques proves to be a powerful strategy for evaluating the spectroscopic characteristics of NPSs. This underscores the potential of this combined methodology as a diagnostic tool for distinguishing IR spectra across various NPS groups, facilitating the evaluation of newly unknown compounds.
Full article
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Open AccessReview
A Scoping Review of Determinants of Drinking and Driving Behavior among Young Adult College Students in the US
by
Laurencia Bonsu, Timothy J. Grigsby, Christopher Johansen, Asma Awan, Sidath Kapukotuwa and Manoj Sharma
Psychoactives 2024, 3(2), 248-264; https://doi.org/10.3390/psychoactives3020016 - 14 May 2024
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College students are a primary population for risky alcohol use behaviors, with one of every eleven students grappling with severe alcohol-related issues. The objective of this scoping review was to synthesize the existing literature to identify factors influencing the prevalence of drinking and
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College students are a primary population for risky alcohol use behaviors, with one of every eleven students grappling with severe alcohol-related issues. The objective of this scoping review was to synthesize the existing literature to identify factors influencing the prevalence of drinking and driving (DAD) behaviors among college students. A scoping review was conducted using Medline (PubMed), ERIC, The American Journal on Addictions, and the NCHA databases. Criteria for article selection included being published in English and focused on DAD behaviors among college students. Articles excluded from the review were systematic reviews and discussion pieces without empirical findings related to college DAD. Of the included studies (n = 23), most identified a range of factors as being influential in college students’ DAD behavior including a family history of alcohol misuse, the use of other substances such as marijuana, age of initial alcohol consumption, place of residence, propensity for sensation seeking, affiliation with sorority/fraternity groups, and the perception of associated risks. Effective strategies may include education on the risks of combined alcohol and substance use, screening and brief interventions tailored to at-risk students, and the implementation of campus policies that promote responsible alcohol consumption and deter DAD.
Full article
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Open AccessReview
Unlocking the Potential of Meldonium: From Performance Enhancement to Therapeutic Insights
by
Val Bellman
Psychoactives 2024, 3(2), 235-247; https://doi.org/10.3390/psychoactives3020015 - 6 May 2024
Cited by 1
Abstract
Meldonium, a promising pharmacological agent initially developed for cardiovascular indications, has sparked considerable interest in recent years due to its potential performance-enhancing effects. This review manuscript delves into the multifaceted roles of meldonium, examining its pharmacological mechanisms, therapeutic applications, and controversial implications in
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Meldonium, a promising pharmacological agent initially developed for cardiovascular indications, has sparked considerable interest in recent years due to its potential performance-enhancing effects. This review manuscript delves into the multifaceted roles of meldonium, examining its pharmacological mechanisms, therapeutic applications, and controversial implications in medicine. Beyond its cardiovascular applications, emerging research has shed light on meldonium’s neuroprotective properties and its potential for mitigating various psychiatric conditions. Moreover, recent investigations have explored meldonium’s potential in treating neurodegenerative disorders, alcohol use disorder, and even enhancing cognitive function. However, meldonium’s journey extends beyond the realm of medicine, as its use among athletes has stirred debates surrounding performance enhancement and fair competition. The substance’s inclusion in the World Anti-Doping Agency’s (WADA) prohibited list has intensified scrutiny and raised ethical considerations regarding its use in sports. This manuscript aims to provide a comprehensive resource for researchers, clinicians, and enthusiasts alike, fostering a deeper understanding of meldonium’s complex biological interactions and its potential contributions to psychiatry.
Full article
Open AccessReview
Mind the Psychedelic Hype: Characterizing the Risks and Benefits of Psychedelics for Depression
by
Daniel Meling, Rebecca Ehrenkranz, Sandeep M. Nayak, Helena D. Aicher, Xaver Funk, Michiel van Elk, Marianna Graziosi, Prisca R. Bauer, Milan Scheidegger and David B. Yaden
Psychoactives 2024, 3(2), 215-234; https://doi.org/10.3390/psychoactives3020014 - 16 Apr 2024
Abstract
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,
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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 psychedelics should be considered preliminary. Poor science communication about psychedelics’ therapeutic potential may lead potential participants or patients to feel misled and policy decisions to be misinformed. An evidence-informed characterization of their risks and benefits is needed. Objectives: This article assesses the state of psychedelic research for treating depression and the effect sizes of psychedelics on therapeutic outcomes, the risk of bias, and the prevalence of adverse effects. We review research on the risks and benefits of psychedelics and discuss how the following depression treatments have shown decreasing effect sizes over time: (1) cognitive behavioral therapy, (2) mindfulness interventions, (3) selective serotonin reuptake inhibitors, and (4) ketamine. We speculate that a similar trend may occur for psychedelic treatments. Results and conclusions: It is likely that larger and better-controlled psychedelic trials will demonstrate smaller effect sizes that are more comparable to other conventional and emerging treatments for mood disorders. Clear science communication is critical for setting public expectations and psychedelic policy. With this evidence-based assessment, we aim to cut through the misinformation about the benefits, risks, and future prospects of psychedelic treatments.
Full article
(This article belongs to the Special Issue Natural Hallucinogens in Mental Health)
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Open AccessReview
A Multi-Level Analysis of Biological, Social, and Psychological Determinants of Substance Use Disorder and Co-Occurring Mental Health Outcomes
by
Cecilia Ilaria Belfiore, Valeria Galofaro, Deborah Cotroneo, Alessia Lopis, Isabella Tringali, Valeria Denaro and Mirko Casu
Psychoactives 2024, 3(2), 194-214; https://doi.org/10.3390/psychoactives3020013 - 8 Apr 2024
Abstract
We explored the intricate interplay of biological, social, and psychological factors contributing to substance use disorder (SUD) and co-occurring psychiatric symptoms. Drug misuse is a global concern, with increasing prevalence rates affecting mental well-being and safety. The spectrum of SUD includes polysubstance users,
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We explored the intricate interplay of biological, social, and psychological factors contributing to substance use disorder (SUD) and co-occurring psychiatric symptoms. Drug misuse is a global concern, with increasing prevalence rates affecting mental well-being and safety. The spectrum of SUD includes polysubstance users, posing challenges for treatment and associated health outcomes. Various psychoactive substances like cannabis, hallucinogens, opioids, and stimulants impact addiction vulnerability, with marijuana being widely used globally. Gender differences in SUD prevalence have narrowed, with women escalating drug consumption rapidly once initiated. Age disparities in substance use highlight regional variations among adolescents. Comorbidities with psychiatric symptoms are common, with mood and anxiety disorders frequently observed. This study aimed to analyze factors influencing SUD development and maintenance to inform prevention strategies and treatment recommendations. By conducting a systematic search of databases, sixty articles were reviewed, revealing diverse methodologies and geographic locations. Biological factors, including neurotransmitter systems like endocannabinoid and dopaminergic systems, play a significant role in addiction. Genetic and neurobiological factors contribute to cannabis addiction susceptibility. Social factors such as childhood experiences and parenting styles influence substance use behaviors. Psychological factors like personality traits and mental health conditions interact with SUD development. Understanding these multifaceted interactions is crucial for designing effective interventions to address the complexities of SUD and co-occurring psychiatric symptoms.
Full article
(This article belongs to the Special Issue Feature Papers in Psychoactives)
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Open AccessArticle
Orally Administered N-Oleoyl Alanine Blocks Acute Opioid Withdrawal Induced-Conditioned Place Preference and Attenuates Somatic Withdrawal following Chronic Opioid Exposure in Rats
by
Samantha M. Ayoub, Erin M. Rock, Cheryl L. Limebeer, Marieka V. DeVuono and Linda A. Parker
Psychoactives 2024, 3(2), 184-193; https://doi.org/10.3390/psychoactives3020012 - 31 Mar 2024
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(1) Background: Intraperitoneal injections of the endogenous N-acyl amino acid N-Oleoyl alanine (OlAla) effectively reduces both the affective and somatic responses produced by opioid withdrawal in preclinical models. To increase the translational appeal of OlAla in clinical drug applications, the current
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(1) Background: Intraperitoneal injections of the endogenous N-acyl amino acid N-Oleoyl alanine (OlAla) effectively reduces both the affective and somatic responses produced by opioid withdrawal in preclinical models. To increase the translational appeal of OlAla in clinical drug applications, the current experiments tested whether oral OlAla pretreatment also attenuates opioid withdrawal in rats. (2) Methods: In Experiment 1, to assess its impact on affective withdrawal behavior, OlAla (0, 5, 20 mg/kg) was orally administered during the conditioning phase of an acute naloxone-precipitated morphine withdrawal conditioned place avoidance task. In Experiment 2, to assess its impact on somatic withdrawal behavior, OlAla (5–80 mg/kg) was orally administered prior to naloxone-precipitated withdrawal from chronic heroin exposure. (3) Results: Pretreatment with oral OlAla at the higher (20 mg/kg), but not lower (5 mg/kg) dose, reduced the establishment of an acute morphine withdrawal-induced conditioned place aversion. Instead, the lower dose of oral OlAla (5 mg/kg) reduced heroin withdrawal-induced abdominal contractions and diarrhea, whereas higher doses were without effect. (4) Conclusions: The results suggest a dose-dependent reduction of opioid withdrawal responses by orally administered OlAla, and further highlight the potential utility of this compound for opioid withdrawal in clinical populations.
Full article
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Open AccessArticle
Self-Rated Effectiveness of Ayahuasca and Breathwork on Well-Being, Psychological Resilience, Self-Compassion, and Personality: An Observational Comparison Study
by
Rishma S. I. Khubsing, Martin van Leerdam, Eline C. H. M. Haijen and Kim P. C. Kuypers
Psychoactives 2024, 3(2), 167-183; https://doi.org/10.3390/psychoactives3020011 - 31 Mar 2024
Abstract
Background: In recent years, there has been a growing interest in the therapeutic potential of classical psychedelics like ayahuasca for mental health improvement. Naturalistic studies at ayahuasca retreats have shown (short-term) improvements in mental well-being but understanding the psychological mechanisms is crucial. We
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Background: In recent years, there has been a growing interest in the therapeutic potential of classical psychedelics like ayahuasca for mental health improvement. Naturalistic studies at ayahuasca retreats have shown (short-term) improvements in mental well-being but understanding the psychological mechanisms is crucial. We are interested in psychological processes such as resilience, self-compassion, and personality traits. Additionally, it is unclear whether changes are solely due to ayahuasca or influenced by the social setting. To address this, a control group participating in a breathwork session, similar to ayahuasca retreats, was included. Methods: In this observational study, individuals who attended an ayahuasca retreat (n = 69) and individuals who participated in a breathwork session (n = 30) completed an online survey one week before (baseline) and one, six, and twelve weeks after they entered the retreat/session. The survey included a series of questionnaires, i.e., the World Health Organisation-Five Well-Being Index, 14-item Resilience Scale, Self-Compassion Scale–Short Form, and Big Five Inventory-10. A linear mixed model (LMM) was used to analyze the outcome data. Results: It was shown that well-being, resilience, and self-compassion increased and remained stable over 12 weeks compared to baseline, regardless of group (ayahuasca or breathwork). Older participants generally reported higher resilience and self-compassion. Self-compassion was also higher in the ayahuasca group overall. Neuroticism decreased in both groups, with lower scores in the ayahuasca group. Agreeableness increased over time, also not influenced by group membership, while there were no changes in extraversion, conscientiousness, or openness. Discussion: Both interventions improved well-being, aligning with prior research. Importantly, this study unveils a novel finding: both interventions enhance resilience and self-compassion for up to three months, offering promise for conditions marked by low well-being, resilience, and self-compassion like depression and anxiety-related disorders. While acknowledging its limitations (e.g., self-selected sample, no specific information of the ayahuasca brew or the breathwork technique), it emphasizes the need for controlled studies with control groups, attention to social contexts in research on these interventions, and to assess other variables like depth of altered states of consciousness that might explain improvement in psychological processes and wellbeing.
Full article
(This article belongs to the Special Issue Natural Hallucinogens in Mental Health)
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Open AccessReview
Producing Altered States of Consciousness, Reducing Substance Misuse: A Review of Psychedelic-Assisted Psychotherapy, Transcendental Meditation and Hypnotherapy
by
Agnieszka D. Sekula, Prashanth Puspanathan, Luke Downey and Paul Liknaitzky
Psychoactives 2024, 3(2), 137-166; https://doi.org/10.3390/psychoactives3020010 - 25 Mar 2024
Abstract
A set of interventions that can produce altered states of consciousness (ASC) have shown utility in the treatment of substance misuse. In this review, we examine addiction-related outcomes associated with three common interventions that produce ASCs: psychedelic-assisted psychotherapy (PP), Transcendental Meditation (TM) and
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A set of interventions that can produce altered states of consciousness (ASC) have shown utility in the treatment of substance misuse. In this review, we examine addiction-related outcomes associated with three common interventions that produce ASCs: psychedelic-assisted psychotherapy (PP), Transcendental Meditation (TM) and hypnotherapy (HT). While procedurally distinct, all three interventions are associated with some common phenomenological, psychological, and neurobiological features, indicating some possible convergent mechanisms of action. Along with addiction and mental health outcomes, these common features are reviewed, and their impact on substance misuse is discussed. While our review highlights some mixed findings and methodological issues, results indicate that PP and TM are associated with significant improvements in substance misuse, alongside improvements in emotional, cognitive and social functioning, behavior-change motivation, sense of self-identity, and meaning. In contrast, and despite its broader acceptance, HT has been associated with mixed and minimal results with respect to substance misuse treatment. Authors identify key research gaps in the role of ASC interventions in addiction and outline a set of promising future research directions.
Full article
(This article belongs to the Special Issue Feature Papers in Psychoactives)
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Open AccessEditorial
New Choking Epidemic Trends in Psychoactive Drugs: The Zombifying Combination of Fentanyl and Xylazine Cause Overdoses and Little Hope in Rehabilitation
by
Ricardo Jorge Dinis-Oliveira
Psychoactives 2024, 3(1), 132-136; https://doi.org/10.3390/psychoactives3010009 - 15 Mar 2024
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The world of drugs of abuse is a complex clinical and forensic topic since their misuse can lead to devastating consequences [...]
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Open AccessArticle
Disparities in Substance Co-Use among Sexual Minority and Heterosexual Adult Hookah Smokers: Findings from Wave 4 (2016–2018) and Wave 5 (2018–2019) of the Population Assessment of Tobacco and Health Study
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Chandni Sakthi, Amanda Adolfo, Umme Shefa Warda, Asmaa Khaled, Mary-Lynn Brecht and Mary Rezk-Hanna
Psychoactives 2024, 3(1), 123-131; https://doi.org/10.3390/psychoactives3010008 - 15 Mar 2024
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Heavily advertised as a harmless tobacco alternative, hookah (i.e., waterpipe)-flavored tobacco smoking has contributed to the wider epidemic of smoking, especially amongst marginalized sexual minority (SM) populations. Evidence regarding the concurrent use of substances and other drugs, among SM current hookah smokers, is
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Heavily advertised as a harmless tobacco alternative, hookah (i.e., waterpipe)-flavored tobacco smoking has contributed to the wider epidemic of smoking, especially amongst marginalized sexual minority (SM) populations. Evidence regarding the concurrent use of substances and other drugs, among SM current hookah smokers, is scarce. We utilized nationally representative data from the Population Assessment of Tobacco and Health (PATH) Study (2016–2019) to examine patterns of the concurrent use of substances (i.e., marijuana, painkillers, sedatives, tranquilizers, cocaine, stimulants (specifically methamphetamines), and others), in SM adult hookah smokers and their heterosexual counterparts. Current hookah smoking is higher among SM adults (Wave 4: 4.22% [95% CI = 2.94–5.94] and Wave 5: 2.65% [95% CI = 1.81–3.48]) than heterosexuals (Wave 4: 1.31% [95% CI = 1.13–1.50] and Wave 5: 1.07% [95% CI = 0.89–1.25]). Among current SM hookah users, the co-use of substances, including alcohol, marijuana, and cocaine, is comparable to heterosexuals (p = ns). Adjusting for gender alone and all covariates, including age, sex, race/ethnicity, education, income, and education, no differences in concurrent substance use were observed between SM and heterosexual hookah users. While the co-use of substances is comparable between SM and heterosexual hookah smoker adults, the prevalence of current hookah use more than doubled among SM individuals than heterosexual individuals during 2018–2019. Our findings highlight the critical value of prevention efforts directed to increase education and awareness about hookah smoking use and known health effects, particularly tailored towards sexual minorities.
Full article
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Open AccessReview
The Clinical Potential of Dimethyltryptamine: Breakthroughs into the Other Side of Mental Illness, Neurodegeneration, and Consciousness
by
Frankie A. Colosimo, Philip Borsellino, Reese I. Krider, Raul E. Marquez and Thomas A. Vida
Psychoactives 2024, 3(1), 93-122; https://doi.org/10.3390/psychoactives3010007 - 26 Feb 2024
Abstract
The human brain is an extraordinarily complex organ responsible for all aspects of cognition and control. Billions of neurons form connections with thousands of other neurons, resulting in trillions of synapses that create a vast and intricate network. This network is subjected to
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The human brain is an extraordinarily complex organ responsible for all aspects of cognition and control. Billions of neurons form connections with thousands of other neurons, resulting in trillions of synapses that create a vast and intricate network. This network is subjected to continuous remodeling that adapts to environmental and developmental changes. The resulting neuroplasticity is crucial to both healthy states and many forms of mental illness and neurodegeneration. This narrative review comprehensively examines N,N-dimethyltryptamine (DMT), a naturally occurring hallucinogen and psychedelic compound, focusing on its implications in promoting neuroplasticity via neuritogenesis. We examine DMT’s pharmacology, including its interaction with serotonergic, sigma-1, and trace amine-associated receptors and their associated signaling pathways. The therapeutic potential of DMT in both animal models and clinical trials is discussed with impacts on perception, cognition, emotion, and consciousness. We uniquely focus on current directions centered on unveiling the direct mechanisms of DMT’s therapeutic effects that demonstrate transformative effects on mental well-being, particularly for conditions like depression, anxiety, and post-traumatic stress disorder. We discuss the connection between DMT and neuroplasticity, offering the potential for forming new neural connections, improving learning, memory, and aiding recovery from brain injuries, including neurorehabilitation and neuroregeneration. The ultimate potential of DMT’s therapeutic efficacy to enhance neurogenesis, especially for neurodegenerative conditions, is also discussed.
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(This article belongs to the Special Issue Natural Hallucinogens in Mental Health)
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Open AccessArticle
Does Conformation Affect the Analytical Response? A Structural and Infrared Spectral Evaluation of Phenethylamines (2C-H, 25H-NBOH, and 25I-NBOMe) Using In Silico Methodology
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Lívia Salviano Mariotto, Caio Henrique Pinke Rodrigues and Aline Thais Bruni
Psychoactives 2024, 3(1), 78-92; https://doi.org/10.3390/psychoactives3010006 - 25 Feb 2024
Abstract
The identification of new psychoactive substances (compounds that mimic the effects of outlawed substances) poses a significant challenge due to their rapid emergence and continuous modifications. This phenomenon results in these molecules escaping legal regulation, allowing them to circumvent legislation. The phenethylamine class
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The identification of new psychoactive substances (compounds that mimic the effects of outlawed substances) poses a significant challenge due to their rapid emergence and continuous modifications. This phenomenon results in these molecules escaping legal regulation, allowing them to circumvent legislation. The phenethylamine class has garnered attention because its molecules replicate the effects of LSD and are associated with numerous cases of intoxication. In this study, we focused on three phenethylamines—2C-H, 25H-NBOH, and 25I-NBOMe—with crystallographic structures available in the Cambridge Crystallographic Data Center (CCDC) database. We conducted a systematic conformational analysis and compared the structural information obtained. Subsequently, we compared the spectra derived from this analysis with experimental details from the ENFSI database. Structural comparisons were made based on the RMSDs between the lower energy conformations and experimental crystallographic structures. Additionally, structures obtained from direct optimization were compared. We then simulated the spectra based on the X-ray structures and compared them with those in the experimental database. Interpretation was carried out using heat maps and PCA in Pirouette software. Combining in silico methods with experimental approaches provides a more comprehensive understanding of the characterization process of new psychoactive substances (NPSs).
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(This article belongs to the Special Issue Feature Papers in Psychoactives)
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Open AccessArticle
Work Stress and Psychoactive Substance Use among Correctional Officers in the USA
by
Wasantha Jayawardene, Chesmi Kumbalatara, Alsten Jones and Justin McDaniel
Psychoactives 2024, 3(1), 65-77; https://doi.org/10.3390/psychoactives3010005 - 3 Feb 2024
Abstract
Background: Correctional officers’ life expectancy in the U.S. is 59 years, compared to the population average of 75 years. Correctional officers have higher suicide rates than others and carry a higher risk for substance use. This study examined relationships between work stress, psychoactive
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Background: Correctional officers’ life expectancy in the U.S. is 59 years, compared to the population average of 75 years. Correctional officers have higher suicide rates than others and carry a higher risk for substance use. This study examined relationships between work stress, psychoactive substance use, and preferred venues for treatment. Methods: Secondary analysis was conducted on 2017–2018 data from interviews with correctional officers, randomly sampled from prisons within Massachusetts and Texas. Independent sample t-test, multinomial logistic regression, and mediation effect model were used for analysis. Results: Of the 1083 participants (mean age = 38.6), 71.4% were males, 62.9% were White, 17.0% were veterans, and 46.7% worked in maximum-security prisons, among which 70.8% used alcohol and 17.2% sedatives in the last month. While 52.3% did not prefer receiving stress management services from the department, 32.9% did not prefer receiving from outside. Alcohol and sedative use were associated positively with work stress and counterproductive workplace behaviors, and negatively with organizational citizenship and task performance. Preferred treatment varied based on work stress and substance use. Conclusions: Work stress and psychoactive substance use among correctional officers are multifactorial. Interventions should be tailored to officers’ needs and preferred treatment venues. Prison reform should address the needs of not only inmates, but also officers.
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(This article belongs to the Special Issue Feature Papers in Psychoactives)
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Open AccessArticle
The Effects of Psilocybin on Lipopolysaccharide-Induced Inflammation in THP-1 Human Macrophages
by
Esmaeel Ghasemi Gojani, Bo Wang, Dongping Li, Olga Kovalchuk and Igor Kovalchuk
Psychoactives 2024, 3(1), 48-64; https://doi.org/10.3390/psychoactives3010004 - 28 Jan 2024
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Psilocybin, an innate compound produced by mushrooms belonging to the Psilocybe genus, is primarily known for its agonistic effects on the serotonin 5-HT2A receptor. This receptor’s functioning is involved in many neurological processes. In the context of this research, our primary aim was
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Psilocybin, an innate compound produced by mushrooms belonging to the Psilocybe genus, is primarily known for its agonistic effects on the serotonin 5-HT2A receptor. This receptor’s functioning is involved in many neurological processes. In the context of this research, our primary aim was to comprehensively investigate the influence of psilocybin as a serotonin receptor agonist on the intricate cascade of events involved in THP-1 macrophages stimulated by lipopolysaccharide (LPS). THP-1 monocyte cells were subjected to differentiation into macrophages through a controlled incubation with phorbol 12-myristate 13-acetate (PMA). The next step involved the induction of an inflammatory response by exposing THP-1 macrophages to 500 ng/mL LPS for 4 h. Subsequently, we triggered the activation of the second phase of the NLRP3 inflammasome by introducing adenosine triphosphate (ATP) immediately following LPS stimulation. Our findings have revealed a dose-dependent inverse correlation between psilocybin exposure and the production of LPS-induced proinflammatory cytokines and proteins. Our work indicates that psilocybin likely mediates these responses by influencing key signaling pathways, including NF-κB, IL-6/TYK2/STAT3, and TYK2/STAT1.
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Open AccessReview
Neurobiological Theories of Addiction: A Comprehensive Review
by
Carmen Ferrer-Pérez, Sandra Montagud-Romero and María Carmen Blanco-Gandía
Psychoactives 2024, 3(1), 35-47; https://doi.org/10.3390/psychoactives3010003 - 23 Jan 2024
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It is essential to develop theories and models that enable us to understand addiction’s genesis and maintenance, providing a theoretical and empirical framework for designing more effective interventions. Numerous clinical and preclinical research studies have investigated the various brain and physiological mechanisms involved
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It is essential to develop theories and models that enable us to understand addiction’s genesis and maintenance, providing a theoretical and empirical framework for designing more effective interventions. Numerous clinical and preclinical research studies have investigated the various brain and physiological mechanisms involved in addictive behavior. Some researchers have gone a step further, developing what we may refer to as “neurobiological theories of addiction”, which are scientific models that can explain and predict different addiction phenomena. Many of these neurobiological theories are not mutually exclusive but rather extensions and refinements of earlier theories. They all share a similar definition of addiction as a chronic disease characterized by a loss of control over substance consumption, with the brain being identified as the principal organ involved. Most propose a multifactorial causation in which both biological and environmental factors interact, accentuating or causing neurobiological dysfunction in structures and brain circuits involved in behavior and motivation. This review delves into primary neurobiological theories of addiction, commencing with the opponent-process theory—one of the earliest comprehensive explanations of the addictive process. Subsequently, we explore more contemporary formulations connecting behavioral alterations in the addictive process to changes and disruptions in various brain systems.
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Guest Editors: Rafael Dos Santos, Jaime HallakDeadline: 31 July 2024