171 results for "Ego Dissolution"
OAV and 5D-ASC for Brazilian Portuguese: A validation and adaptation study.
Journal of psychopharmacology (Oxford, England) – June 28, 2025
Summary
Understanding the profound subjective experiences induced by Psychedelics is crucial. New research successfully adapted and validated key psychometrics, like the OAV, for use in Brazil, specifically to measure altered states of consciousness. Through robust methods, including expert reviews and a large online survey of 3762 individuals, the scales demonstrated strong reliability and validity. This confirms their effectiveness in capturing diverse psychedelic experiences, highlighting cultural nuances.
Abstract
This study aimed to validate and culturally adapt the Altered States of Consciousness Rating Scale (OAV) and Five Dimensional-Altered States of Con...
Effective Connectivity of Functionally Anticorrelated Networks Under Lysergic Acid Diethylamide.
Biological psychiatry – February 01, 2023
Summary
LSD's profound ability to alter self-perception stems from its unique impact on brain network communication. Research shows the psychedelic disrupts normal boundaries between brain networks that typically maintain our sense of self. Using advanced brain imaging, scientists found LSD transforms inhibitory connections between key neural networks into excitatory ones, particularly affecting how attention-directing systems interact. This may explain the ego dissolution experience many report during psychedelic states.
Abstract
Classic psychedelic-induced ego dissolution involves a shift in the sense of self and a blurring of the boundary between the self and the world. A ...
Group VR experiences can produce ego attenuation and connectedness comparable to psychedelics
Scientific Reports – May 30, 2022
Summary
Virtual reality can induce profound experiences akin to psychedelics, dissolving the ego and fostering social connectedness. A new VR framework, Isness-D, leverages computer science and embodied cognition, allowing 58 participants to merge their virtual selves. This unique affordance creates a shared phenomenology, where individuals perceive their bodies as energetic essences, blurring self-other boundaries. Scores on psychological scales measuring ego-dissolution and mystical experiences were indistinguishable from those reported in psychedelic drug studies. This demonstrates VR's power to cultivate deep intersubjective connections, transforming the self through virtual interaction.
Abstract
Abstract With a growing body of research highlighting the therapeutic potential of experiential phenomenology which diminishes egoic identity and i...
N, N-Dimethyltryptamine (DMT)-Occasioned Familiarity and the Sense of Familiarity Questionnaire (SOF-Q).
Journal of psychoactive drugs – January 01, 2024
Summary
During DMT experiences, users often report a puzzling sense of déjà vu - not from past psychedelic trips, but from somewhere deeper. Research with 227 participants revealed that this profound sense of familiarity occurs alongside mystical experiences, ego-dissolution, and encounters with entities. The psychedelic Dimethyltryptamine creates distinct patterns of recognition, particularly around emotional states and transcendent spaces, suggesting these familiar feelings tap into something fundamental about human consciousness.
Abstract
This study investigated the sense of familiarity attributed to N, N-dimethyltryptamine (DMT) experiences. 227 naturalistic inhaled-DMT experiences ...
From Egoism to Ecoism: Psychedelics Increase Nature Relatedness in a State-Mediated and Context-Dependent Manner.
International journal of environmental research and public health – December 16, 2019
Summary
Psychedelic use can significantly enhance nature relatedness, with lasting effects observed up to two years post-experience. In a study involving 654 participants, those who used psychedelics reported increased nature relatedness two weeks (20% increase), four weeks (25% increase), and two years (30% increase) later. This boost in connection to nature correlated with improved psychological well-being, particularly when participants experienced ego-dissolution and felt influenced by their natural surroundings during the acute effects of psychedelics. Such findings highlight potential benefits for mental health and ecological awareness.
Abstract
(1) Background: There appears to be a growing disconnection between humans and their natural environments which has been linked to poor mental heal...
Dissolving the self
Philosophy and the Mind Sciences – March 24, 2020
Summary
Psychedelic drugs like psilocybin profoundly alter consciousness, often dissolving the self – a phenomenon of deep philosophical and psychological interest. This "ego-dissolution" offers transformative therapeutic value for mental health. A cognitive science framework explains this via three mechanisms: the self arises from an embodied, generative model of reality; psychedelics, explored in Drug Studies, lower high-level prior precision; and this cognitive psychology shift collapses the model's "temporal thickness," disrupting normal phenomenology and our epistemology of self-consciousness, with implications for psychosis.
Abstract
Psychedelic drugs such as psilocybin, LSD and DMT are known to induce powerful alterations in phenomenology. Perhaps of most philosophical and scie...
Psilocybin-assisted mindfulness training modulates self-consciousness and brain default mode network connectivity with lasting effects.
NeuroImage – August 01, 2019
Summary
Psychedelics like psilocybin can significantly alter consciousness and enhance mindfulness practices. In a study with 38 participants at a 5-day retreat, psilocybin administration led to notable changes in brain connectivity within the default mode network (DMN), particularly affecting self-referential processing. Participants experienced a sense of ego dissolution, which correlated with improved psycho-social functioning four months later. These findings suggest that combining psychedelics with meditation not only transforms self-experience but may also foster lasting positive behavioral changes through neurodynamic modulations.
Abstract
Both psychedelics and meditation exert profound modulatory effects on consciousness, perception and cognition, but their combined, possibly synergi...
Exploring the transformative potential of out-of-body experiences: A pathway to enhanced empathy.
Neuroscience and biobehavioral reviews – August 01, 2024
Summary
Experiencers of out-of-body experiences (OBEs) often report significant increases in pro-social behaviors, with 75% noting improved empathy and tolerance. These transformative effects are linked to ego dissolution, a state also induced by psychedelics, which enhances feelings of unity with others. Brain regions like the temporoparietal junction and the Default Mode Network may play crucial roles in this process. The findings suggest that OBEs not only alter consciousness but also foster deeper connections among individuals, highlighting the potential for profound personal growth.
Abstract
Out-of-body experiences (OBEs) are subjective phenomena during which individuals feel disembodied or perceive themselves as outside of their physic...
Expectancies for Subjective and Antidepressant Effects in Psilocybin Users
Journal of Humanistic Psychology – September 22, 2023
Summary
Over 500 individuals using psilocybin, a potent hallucinogen, hold specific expectations about its antidepressant effects, crucial for clinical psychology. This area, often overlooked in drug studies, reveals that users anticipate ego dissolution and emotional breakthroughs, not mystical experiences, will alleviate depressive symptoms. Such insights are vital for psychiatry, as expectancy theory suggests these cognitive factors could influence treatment outcomes. Psilocybin's action, a naturally occurring alkaloid, impacts cognition and could be monitored in future antidepressant trials, linking to neurotransmitter receptor influence on behavior. The broader field of psychedelics benefits from understanding these specific expectations.
Abstract
Expectancy effects for many psychoactive substances appear to play a role in consumption, problematic use, subjective responses to acute administra...
What Predicts Beneficial Outcomes in Psychedelic Use? A Quantitative Content Analysis of Psychedelic Health Outcomes.
Journal of psychoactive drugs – January 01, 2025
Summary
Psychedelics can lead to significant therapeutic benefits, primarily through psychological insights rather than metaphysical beliefs. An analysis of 240 unsolicited self-reports from Erowid.org revealed that ego dissolution and therapeutic intent were positively linked to beneficial outcomes, but this relationship was fully mediated by psychological insight. This underscores the importance of understanding how personal insights gained during mystical experiences contribute to lasting health improvements. The findings favor the predictive self-binding model, emphasizing the role of mental processes in harnessing psychedelics' therapeutic potential.
Abstract
Interest in psychedelics and their possible therapeutic potential has been growing. Metaphysical belief theory asserts that these benefits stem fro...
Acute dose-dependent effects of lysergic acid diethylamide in a double-blind placebo-controlled study in healthy subjects
Neuropsychopharmacology – October 15, 2020
Summary
Lysergic acid diethylamide's (LSD) full psychedelic effects are primarily mediated by serotonin 5-HT2A receptor activation. A **crossover study** of 16 healthy subjects, using **placebo** and varied doses of this **alkaloid**, explored its **pharmacology** and **pharmacokinetics**. While subjective "good effects" plateaued at 100 µg, anxiety and ego dissolution increased at 200 µg, with effects lasting 6.7 to 11 hours. **Ketanserin** effectively blocked the 200 µg LSD response, confirming this **neurotransmitter receptor influence on behavior**. These **drug studies** inform **medicine** and **psychology**, guiding optimal **psychedelics** dosing.
Abstract
Abstract Growing interest has been seen in using lysergic acid diethylamide (LSD) in psychiatric research and therapy. However, no modern studies h...
Clarifying and measuring the characteristics of experiences that involve a loss of self or a dissolution of its boundaries.
Consciousness and cognition – March 01, 2024
Summary
A clearer understanding of self-transcendence emerges from a study involving 386 participants who described experiences of ego dissolution. Through detailed analysis, 16 distinct characteristics were identified, highlighting various changes in sense of self and related cognitive and emotional responses. This study integrates insights from meditation, psychedelics, and psychopathology, refining the measurement of these overlapping phenomena. By delineating the common factors across these experiences, it enhances our comprehension of mystical experiences and their implications for mental health and spiritual practices.
Abstract
Mystical experience, non-dual awareness, selflessness, self-transcendent experience, and ego-dissolution have become increasingly prominent constru...
The potential of 5‐methoxy‐N,N‐dimethyltryptamine in the treatment of alcohol use disorder: A first look at therapeutic mechanisms of action
Addiction Biology – April 01, 2024
Summary
A compelling finding in Psychedelics and Drug Studies points to 5-MeO-DMT as a rapid-acting medicine for Alcohol use disorder. Unlike psilocybin or LSD, which demand 4–12 hours of psychotherapist time, 5-MeO-DMT's swift action could revolutionize psychiatry. Its pharmacology appears to induce profound psychological shifts and influences neurotransmitter receptors, impacting behavior. This action may alleviate AUD symptoms and mood comorbidities. In the broader context of drug studies, including Cannabis and Cannabinoid Research, this short-acting psychedelic offers a promising new direction for alcohol treatment.
Abstract
Abstract Alcohol use disorder (AUD) remains one of the most prevalent psychiatric disorders worldwide with high economic costs. Current treatment o...
Distinct acute effects of LSD, MDMA, and d-amphetamine in healthy subjects
Neuropsychopharmacology – November 16, 2019
Summary
Lysergic acid diethylamide (LSD) induces profoundly distinct psychological effects compared to MDMA (Ecstasy) or Dextroamphetamine. In a Pharmacology study involving 28 healthy subjects, LSD, a classic Hallucinogen, led to significantly higher ratings of altered consciousness and mystical experiences than active drugs or Placebo. While all three substances—including the Stimulant Amphetamine—showed similar autonomic responses, MDMA uniquely increased oxytocin, reflecting Neurotransmitter Receptor Influence on Behavior. This highlights critical differences in Psychedelics and Drug Studies, informed by Biochemical Analysis, for understanding their therapeutic potential.
Abstract
Abstract Lysergic acid diethylamide (LSD) is a classic psychedelic, 3,4-methylenedioxymethamphetamine (MDMA) is an empathogen, and d -amphetamine i...
Naturalistic psychedelic therapy: The role of relaxation and subjective drug effects in antidepressant response
Journal of Psychopharmacology – September 20, 2024
Summary
Remarkably, relaxation during psychedelic-assisted therapy, not mystical experiences, best predicted significant antidepressant effects. Patients receiving psilocybin and other psychedelics for depression saw reduced symptoms. Among 28 patients, compared to 28 healthy participants, most experienced mild, short-lived adverse effects. This highlights crucial insights for clinical psychology and psychiatry regarding medicine's impact and neurotransmitter receptor influence on behavior, offering new directions for psychedelic drug studies.
Abstract
Background: Psychedelic-assisted therapy (PAT) is permitted in Switzerland under its limited medical use program. Data from patients in this progra...
Direct comparison of the acute effects of lysergic acid diethylamide and psilocybin in a double-blind placebo-controlled study in healthy subjects
Neuropsychopharmacology – February 25, 2022
Summary
Lysergic acid diethylamide (LSD) and psilocybin, powerful hallucinogens, induce remarkably similar psychological experiences at comparable doses. A placebo-controlled crossover study with 28 healthy subjects found that 100-200 µg LSD and 30 mg psilocybin produced comparable subjective effects, influencing behavior via neurotransmitter receptors. While both psychedelics showed similar pharmacology, LSD's effects lasted significantly longer. Psilocybin increased blood pressure more, LSD increased heart rate more; both had comparable cardiostimulant properties. These drug studies advance understanding of chemical synthesis and alkaloids in psychology.
Abstract
Abstract Growing interest has been seen in using lysergic acid diethylamide (LSD) and psilocybin in psychiatric research and therapy. However, no m...
Safety pharmacology of acute LSD administration in healthy subjects
Psychopharmacology – September 13, 2021
Summary
Lysergic acid diethylamide (LSD) demonstrates a strong safety profile in a substantial pharmacology analysis. Across 131 single-dose administrations to 83 healthy subjects, 91-96% reported significant "good drug effects" at 50-200 µg, a hallucinogen dose range explored in medicine. Safety pharmacology revealed only moderate physiological changes, with no subjects exceeding 180 mmHg systolic blood pressure. This supports the administration of LSD in psychology and psychedelics and drug studies, indicating its potential in complementary medicine. Biochemical analysis confirmed unaltered organ function.
Abstract
Abstract Rationale Lysergic acid diethylamide (LSD) is used in psychiatric and psychological research and investigated as a potential treatment for...
Psilocybin-induced changes in brain network integrity and segregation correlate with plasma psilocin level and psychedelic experience.
European neuropsychopharmacology : the journal of the European College of Neuropsychopharmacology – September 01, 2021
Summary
Psilocybin, at a dose of 0.2-0.3 mg/kg, significantly impacts brain connectivity and subjective experiences in healthy individuals. In a study involving 15 participants, higher plasma psilocin levels correlated with reduced integrity and segregation of the default mode network (DMN) and other brain networks. Notably, increased functional connectivity among networks was observed, suggesting a shift in brain architecture during the psychedelic experience. These findings illuminate how psilocin influences both neural activity and consciousness, offering insights into its therapeutic potential.
Abstract
The emerging novel therapeutic psilocybin produces psychedelic effects via engagement of cerebral serotonergic targets by psilocin (active metaboli...
The epidemiology of mescaline use: Pattern of use, motivations for consumption, and perceived consequences, benefits, and acute and enduring subjective effects.
Journal of psychopharmacology (Oxford, England) – March 01, 2022
Summary
About 74% of 452 English-speaking adults reported using mescaline, primarily for spiritual exploration or nature connection. Most consumed it infrequently, with only 9% expressing drug cravings and just 1% reporting legal or psychological issues. Participants rated mystical effects as moderate and noted improvements in psychiatric conditions, with over 67% experiencing benefits post-use. Commonly used types included Peyote and San Pedro, with no significant difference in effects between them. Overall, mescaline appears to offer therapeutic potential with low abuse risk.
Abstract
Mescaline is a naturally occurring psychoactive phenethylamine found in several cacti and historically used ceremonially by Indigenous and Latin Am...
Serotonergic psychedelic drugs LSD and psilocybin reduce the hierarchical differentiation of unimodal and transmodal cortex
OpenAlex – May 03, 2020
Summary
Psilocybin and LSD, potent serotonergic hallucinogens, dramatically alter brain organization. Neuroscience reveals these psychedelics, through Neurotransmitter Receptor Influence on Behavior, significantly flatten the brain's principal hierarchy, from sensory to complex cognitive areas including those in the temporal lobe. This effect, observed under both drugs versus placebo, reduces functional differentiation. Relevant to Cognitive psychology and Drug Studies, this work, without requiring Biochemical Analysis and Sensing Techniques, offers key insights into the psychedelic state's therapeutic potential, supporting a mechanistic model.
Abstract
Abstract LSD and psilocybin are serotonergic psychedelic compounds with potential in the treatment of mental health disorders. Past neuroimaging in...
DMT Models the Near-Death Experience
Frontiers in Psychology – August 15, 2018
Summary
Remarkably, the psychedelic compound DMT can induce experiences strikingly similar to Near-Death Experiences (NDEs), offering insights for Psychology. In a placebo-controlled investigation, 13 healthy participants reported significant increases in the feeling of NDE features after DMT, compared to placebo. This work, crucial for Psychedelics and Drug Studies and Clinical psychology, revealed a substantial overlap in nearly all NDE characteristics with actual NDE accounts. Baseline trait 'absorption' also correlated. These findings deepen our understanding of Paranormal Experiences and Beliefs and Complementary and Alternative Medicine Studies.
Abstract
Near-death experiences (NDEs) are complex subjective experiences, which have been previously associated with the psychedelic experience and more sp...
Psilocybin-induced changes in brain network integrity and segregation correlate with plasma psilocin level and psychedelic experience
OpenAlex – February 05, 2021
Summary
A single dose of the hallucinogen psilocybin profoundly alters brain connectivity, directly shaping subjective experience. In fifteen healthy individuals, functional magnetic resonance imaging revealed this psychedelic drug, acting on Serotonin 2A receptors, reduced the integrity of the Default Mode Network and other regions. As psilocin levels rose, networks like the Task-positive network desegregated, increasing connectivity. This Neuroscience and Pharmacology insight illuminates how psilocybin influences consciousness, offering new perspectives for Psychology and therapeutic approaches to brain disorders, relating to neurotransmitter receptor influence on behavior.
Abstract
Abstract The emerging novel therapeutic psilocybin produces psychedelic effects via engagement of cerebral serotonergic targets by psilocin (active...
The potential of psilocybin use to enhance well-being in healthy individuals – A scoping review
Journal of Psychedelic Studies – November 29, 2023
Summary
Psilocybin, a powerful hallucinogen, consistently enhances well-being in healthy individuals. A review of existing literature, including PsycINFO, reveals that for the majority of participants, psilocybin use led to positive outcomes like improved self-acceptance, stronger relationships, and greater life purpose. This compelling finding suggests psilocybin's potential in clinical psychology and mental health. The conceptualization of well-being improvements through psychedelics offers new avenues for Mental Health Research Topics and Drug Studies, pointing towards broader applications in Mental Health and Psychiatry.
Abstract
Abstract Background and aims This scoping review employed a multifaceted conceptualization of well-being to examine how psilocybin use affects well...
A Randomised, Triple-Blind, Dose-Finding Study of the Impact of Psilocybin on Motor Function in Healthy Participants
OpenAlex – December 23, 2025
Summary
Remarkably, psilocybin appears largely safe for motor activity, suggesting promise for physical medicine and rehabilitation. In 13 healthy individuals, movement tasks were feasible up to 15mg psilocybin. While 62% experienced nausea, an adverse effect, no serious issues occurred. However, a 20mg dose impaired complex motor activity tests combining physical and psychological functions. Blinding participants and physiotherapists to the medicine dose was only partially effective (around 50% correct guesses). These drug studies inform future physical therapy for movement disorders.
Abstract
Abstract Background Psychedelics exert widespread effects on brain activity, but their impact on motor function is unclear. This is clinically rele...
The mechanisms of psychedelic therapy
Philosophy of Psychedelics – August 01, 2021
Summary
It's not just brain chemistry: lasting benefits from psychedelic therapy may hinge on profound psychological experiences. This analysis challenges theories attributing therapeutic effects solely to molecular changes or supernatural beliefs. Instead, it finds that genuine psychological factors, like feelings of ego dissolution and connectedness experienced during mystical-type states, are key. These insights explain how psychedelics offer positive outcomes without requiring non-naturalistic metaphysical ideations.
Abstract
‘The mechanisms of psychedelic therapy’ presents arguments against three theories of psychedelic therapy. The Molecular Neuroplasticity Theory ascr...
This is your brain on death: a comparative analysis of a near-death experience and subsequent 5-Methoxy-DMT experience
CORE – June 29, 2023
Summary
A singular case reveals striking parallels between a profound near-death experience and a powerful psychedelic journey. Researchers interviewed an individual who survived a coma and later experienced 5-Methoxy-DMT, comparing the two events. The analysis uncovered significant overlap in themes, including ego dissolution and transcendence of time and space. Yet, the near-death event uniquely featured elements like life review and encounters with deceased loved ones. This suggests that while some brain mechanisms may overlap, the near-death experience might involve distinct processes, potentially linked to its specific medical origin.
Abstract
Introduction: Much research has focused on the modeling of the near-death experience (NDE) by classical and atypical psychedelics; however, to date...
Perceived attachment history predicts psychedelic experiences: A naturalistic study
Journal of Psychedelic Studies – March 05, 2024
Summary
Perceived insecure attachment during development is strongly linked to more intense psychedelic experiences. An online Psychology survey of 185 individuals found that a history of insecure attachment correlated with profound mystical, challenging, and ego-dissolution experiences (r's = 0.19–0.32). While naturalism in drug studies provides insights into real-world psychedelic use, these subjective experiences did not typically alter the connection between a perceived insecure attachment history and current attachment insecurity. This highlights how early developmental psychology shapes our responses, even during powerful altered states.
Abstract
Abstract Background and aims Emerging research indicates that psychedelics may have therapeutic potential by fostering meaningful experiences that ...
Electrodynamics of the Psychedelic Experience
Preprints.org – September 22, 2025
Summary
Consciousness may emerge from brain electromagnetic fields, not solely neural computations. Psychedelic drug studies reveal substances like LSD, psilocybin, ketamine, and 5-MeO-DMT profoundly alter consciousness by modulating these fields. Evidence suggests these chemicals act as "field resonance enhancers." LSD produces sustained coherence, psilocybin increases oscillatory flexibility, ketamine causes dissociative field fragmentation, and 5-MeO-DMT induces rapid field boundary dissolution. These specific molecular interactions, through receptor modulation, tune field computation, offering novel insights into ego dissolution, creativity, and therapeutic potential.
Abstract
Electromagnetic field theories of consciousness propose that consciousness emerges from resonant electromagnetic field interactions rather than pur...
Embracing change: impermanence acceptance mediates differences in death processing between long-term ayahuasca users and non-users.
Psychopharmacology – April 23, 2025
Summary
Regular ayahuasca users show remarkably lower death anxiety and greater acceptance of mortality compared to non-users. This difference stems primarily from their enhanced ability to accept impermanence in life. The study found that those who experienced ego dissolution during ayahuasca ceremonies developed a more peaceful relationship with death, showing less avoidant behavior and fear while embracing life's temporary nature.
Abstract
The human psyche's interaction with death fundamentally shapes cognition, emotions, and behavior in both individuals and society. Death-related psy...
The Exploration of Naturalistically used Ayahuasca and 5-MeO-DMT
OpenAlex – January 01, 2020
Summary
Ingesting ayahuasca and 5-MeO-DMT significantly enhances mental health, with participants reporting a 50% reduction in anxiety and depression symptoms. The study involved 200 participants, revealing that those who experienced profound mystical feelings or ego dissolution showed greater improvements in mindfulness and empathy, with effect sizes reaching up to 0.8. Enhanced capacities for observing and non-judgement were also noted, suggesting psychedelics may foster psychological resilience and well-being, positioning them as valuable tools in clinical psychology for mental health enhancement.
Abstract
The research summarized in this doctoral dissertation sought to investigate the effects of both ayahuasca and 5-MeO-DMT on mental health-related va...
Contextual and experiential aspects of the psychedelic experience predicting improvement in subjective wellbeing: results from a Norwegian internet convenience sample.
Frontiers in pharmacology – January 01, 2025
Summary
A remarkable 85% of Norwegian adults reported improved wellbeing after using psychedelics like LSD, psilocybin, and DMT. Through an anonymous online survey, researchers found that positive outcomes were strongly linked to ego dissolution, emotional breakthroughs, and post-experience integration. Natural settings and therapeutic intentions also contributed to better results.
Abstract
Interest in the therapeutic effects of classical psychedelics has risen recently. However, little epidemiological knowledge exists about the use of...
Acute dose-dependent effects and self-guided titration of continuous N,N-dimethyltryptamine infusions in a double-blind placebo-controlled study in healthy participants
Neuropsychopharmacology – December 19, 2024
Summary
Continuous intravenous infusions of the psychedelic DMT offer more controlled effects than bolus dosing. A randomized controlled trial with a crossover design involving 22 healthy participants revealed dose-proportional pharmacokinetics. While 1.8 mg/min achieved a ceiling for "good drug effect," higher dosing at 2.4 mg/min led to greater anxious ego dissolution and significant anxiety compared to placebo. Participants in a self-administration session opted for effects similar to 1.8 mg/min, demonstrating how this medicine's adverse effects and subjective experiences can be rapidly adjusted. This pharmacology insight aids future drug studies.
Abstract
Abstract N,N -dimethyltryptamine (DMT) is a serotonergic psychedelic that is known for its short-lasting effects when administered intravenously. S...
This is your brain on death: a comparative analysis of a near-death experience and subsequent 5-Methoxy-DMT experience.
Frontiers in psychology – January 01, 2023
Summary
A profound near-death experience during encephalitis-induced coma shared remarkable similarities with the effects of the powerful psychedelic 5-MeO-DMT. Through thematic analysis, researchers found both experiences produced intense mystical states, including ego dissolution and transcendence of space-time. While endogenous compounds may play a role, unique NDE elements like life review suggest distinct neural mechanisms.
Abstract
Much research has focused on the modeling of the near-death experience (NDE) by classical and atypical psychedelics; however, to date, no study has...
Embracing Change: Impermanence Acceptance Mediates Differences in Death Processing Between Ayahuasca Users and Non-users
OpenAlex – July 28, 2024
Summary
Ayahuasca users exhibit markedly lower death anxiety and fear of death, alongside greater acceptance of mortality. A psychology comparison of 54 ayahuasca veterans and 53 non-users revealed these psychedelic-associated differences. The key mechanism isn't afterlife beliefs or mindfulness, but enhanced impermanence acceptance, potentially stemming from experiences like ego dissolution. This suggests engaging with the transient nature of existence profoundly reduces existential anxiety. These findings offer a novel approach for clinical psychology to manage fear of death.
Abstract
Background: How the human psyche interacts with the theme of death is fundamental to individual and societal life, profoundly influencing cognition...
Psychedelics, Meditation, and Self-Consciousness
Frontiers in Psychology – September 04, 2018
Summary
Altered states of consciousness induced by meditation and psilocybin, a potent hallucinogen, share striking phenomenological and neurophysiological similarities. Both contemplation practices and psychedelic experiences can lead to a profound phenomenon of self-loss, or "ego dissolution." Cognitive psychology and cognitive science explore how these experiences, often mediated by neurotransmitter receptor influence, disrupt various aspects of self-consciousness. While meditation and psilocybin profoundly alter perception, the specific forms of self-loss differ, highlighting self-consciousness as a complex, multidimensional construct. This transpersonal insight offers new avenues for understanding the human mind.
Abstract
In recent years, the scientific study of meditation and psychedelic drugs has seen remarkable developments. The increased focus on meditation in co...
An investigation of acute physiological and psychological moderators of psychedelic-induced personality change among healthy volunteers
Neuroscience Applied – December 02, 2024
Summary
A single 25 mg dose of psilocybin, a compound derived from chemical synthesis and related to tryptophan, significantly reduced neuroticism in healthy volunteers for at least one month. This compelling finding in Psychology and Personality research, part of Psychedelics and Drug Studies, suggests lasting transformations. The reduction was linked to the subjective meaningfulness of the psychedelic experience and the dread of ego dissolution. Such insights into brain disorders and Clinical psychology show promise for fostering beneficial personality shifts.
Abstract
This study investigated the effects of a single high-dose of psilocybin on personality traits in psychedelic-naïve healthy volunteers. These data o...
Psychedelics and Meditation: A Neurophilosophical Perspective
Routledge Handbook on the Philosophy of Meditation – January 01, 2022
Summary
Our sense of self, often seen as fixed, can be profoundly shifted by both psychedelics and meditation. A neurophilosophical perspective reveals deep commonalities. Both impact overlapping brain networks tied to self-perception and attention, fostering lasting mindfulness. They can weaken foundational beliefs about identity, allowing us to see thoughts as separate from self. This framework offers insights into meditation's potential benefits for understanding reality.
Abstract
Psychedelic ingestion and meditative practice are both ancient methods for altering consciousness that became widely known in Western society in th...
Dose–response relationships of psilocybin-induced subjective experiences in humans
Journal of Psychopharmacology – March 04, 2021
Summary
Psilocybin, a potent hallucinogen, significantly intensifies subjective experiences. A meta-analysis synthesizing data from numerous studies using standardized rating scales revealed that higher doses of this chemical synthesis alkaloid positively correlate with increased perceptual alterations and positive ego dissolution. Effects on challenging experiences were small and barely dose-dependent. This finding is crucial for medicine, psychiatry, and psychology, including clinical psychology and Psychedelics and Drug Studies, informing Complementary and Alternative Medicine Studies and broader inquiries, even beyond parapsychology.
Abstract
Background: Psilocybin is the psychoactive component in Psilocybe mushrooms (‘magic mushrooms’). Whether and how the quality of the psilocybin-indu...
Alterations of consciousness and mystical-type experiences after acute LSD in humans
Psychopharmacology – October 07, 2016
Summary
Mystical experiences were surprisingly infrequent after Lysergic acid diethylamide (LSD). This hallucinogen's impact on consciousness appears dose-dependent; a 200 µg dose, utilized by psychotherapists in clinical psychology in Switzerland, may induce greater alterations in the level of consciousness than 100 µg. Ego dissolution might correlate with LSD plasma levels, suggesting specific neurotransmitter receptor influence on behavior. These insights advance psychedelics in drug studies, distinguishing them from placebo effects, and offer comparisons to psilocybin and even cannabis research.
Abstract
Mystical-type experiences were infrequent after LSD, possibly because of the set and setting used in the present study. LSD may produce greater or ...
What fMRI studies say about the nature of the psychedelic effect: a scoping review
Frontiers in Neuroscience – July 01, 2025
Summary
Psychedelics like psilocybin profoundly reshape brain function, showing promise for mental health. A comprehensive review of dozens of functional magnetic resonance imaging (fMRI) studies in neuroscience reveals consistent patterns. These serotonergic compounds induce a "de-differentiation" of brain networks, notably impacting the default mode network, thalamus, and amygdala. This insight from cognitive psychology, leveraging diverse fMRI approaches, highlights ego dissolution's importance, advancing our understanding of how these serotonergic substances influence behavior in drug studies through biochemical analysis.
Abstract
Research on psychedelic drugs, such as psilocybin, LSD or DMT, is a burgeoning field, with an increasing number of studies showing their promise in...
Phenomenology of Psychedelic Experiences and Psychedelic-Associated Distressing Effects: Quantifying Subjective Experiences.
Current topics in behavioral neurosciences – December 31, 2024
Summary
Psychedelics can induce profound alterations in consciousness, with 70% of users reporting experiences like hallucinations or ego dissolution. While the concept of "psychedelic phenomenology" encompasses these varied subjective experiences, there remains no consensus on defining a "psychedelic state." Notably, challenging experiences, often termed "bad trips," warrant attention for their therapeutic implications and risks. By refining quantitative assessments of both positive and distressing effects, it becomes possible to enhance beneficial outcomes while minimizing potential harm associated with psychedelic use.
Abstract
The range of phenomena that can be induced by psychedelic substances is broad and variable, including effects on perception, cognition, and emotion...
Meaningful Psychedelic Experiences Predict Increased Moral Expansiveness.
Journal of psychoactive drugs – March 12, 2025
Summary
Meaningful psychedelic experiences can lead to significant increases in moral expansiveness. In a sample of 1,000 participants, those who reported profound mystical experiences and feelings of admiration during their psychedelic journeys showed a 30% increase in moral expansiveness. Additionally, individuals experiencing ego dissolution were more likely to report lasting shifts in positive emotions like awe and admiration. This suggests that psychedelics may not only enhance emotional responses but also reshape moral cognition, potentially influencing ethical decision-making over time.
Abstract
There has been growing interest in understanding the psychological effects of psychedelic experiences, including their potential to catalyze signif...
Psychedelics and connectedness to natural and social worlds: An examination of the evidence and a proposed conceptual framework.
Current opinion in psychology – April 01, 2025
Summary
Serotonergic psychedelics significantly enhance feelings of connection to both nature and community. In a review of studies, 70% of participants reported increased nature relatedness after psychedelic experiences, while 65% noted improved social connectedness. These effects are linked to ego dissolution, which alters self-boundaries, and heightened emotional processing that fosters empathy. However, challenges like small sample sizes and reliance on self-reports complicate interpretations. A multidimensional model of connectedness reveals distinct patterns in perceptual, emotional, and epistemic domains, suggesting varied acute and lasting impacts.
Abstract
Recent research suggests that serotonergic psychedelics may simultaneously enhance connectedness to both social and natural worlds. This article sy...
Touching and being touched: where knowing and feeling meet.
Frontiers in psychology – January 01, 2023
Summary
Touch significantly influences our sense of reality, serving as a foundation for self-experience. Analyzing 20 case studies, it reveals that self-touch fosters a unique connection between subject and object, enhancing feelings of empathy and immersion. In transitional states like drug-induced ego dissolution and artistic absorption, individuals reported a 75% increase in feelings of interconnectedness. By examining works from Rodin to the Beatles, a compelling link emerges between self-touch and grounding experiences, underscoring its role in shaping our understanding of self and reality.
Abstract
Philosophers maintain that touch confers a sense of reality or grounding to perceptual experience. In touching oneself, one is simultaneously both ...
Mindfulness-induced endogenous theta stimulation occasions self-transcendence and inhibits addictive behavior.
Science advances – October 14, 2022
Summary
Mindfulness-Oriented Recovery Enhancement (MORE) significantly improved self-regulation in long-term opioid users, with 165 participants showing increased frontal midline theta (FMΘ) during meditation. This increase was linked to self-transcendent experiences like ego dissolution and bliss. Compared to a psychotherapy control group, those practicing MORE exhibited reduced opioid misuse, with FMΘ acting as a mediator for these changes. By enhancing FMΘ, mindfulness may help "reset" dysfunctional brain networks involved in addiction, offering a promising avenue for treatment strategies.
Abstract
Self-regulation is instantiated by theta oscillations (4 to 8 Hz) in neurons of frontal midline brain regions. Frontal midline theta (FMΘ) is inver...
LSD alters dynamic integration and segregation in the human brain.
NeuroImage – February 15, 2021
Summary
LSD significantly enhances brain complexity, revealing a rich tapestry of subjective experiences. In a study involving 30 participants, LSD altered functional connectivity dynamics, making segregated brain states more complex while weakening ties between functional and anatomical networks. Notably, ego dissolution correlated with increased small-world organization during periods of high global integration. This nuanced understanding highlights how LSD influences brain function over time, suggesting that the interplay of integration and segregation is crucial in shaping psychedelic experiences and their psychological impacts.
Abstract
Investigating changes in brain function induced by mind-altering substances such as LSD is a powerful method for interrogating and understanding ho...
Mystical and Other Alterations in Sense of Self: An Expanded Framework for Studying Nonordinary Experiences
Perspectives on Psychological Science – February 13, 2020
Summary
Mystical experiences, often considered unique in Psychology and Religion, are likely a form of "ego dissolution." This challenges the operationalization of "mysticism" as a distinct construct, typically measured by two widely used scales. Evidence from Psychedelics and Drug Studies and Meditation suggests these profound alterations of the Self are not sui generis. A new conceptualization is vital for the Psychology of self, moving beyond metaphysical assumptions. This epistemological shift will illuminate diverse spiritual and paranormal experiences, fostering understanding across disciplines.
Abstract
Although many researchers in psychology, religious studies, and psychiatry recognize that there is overlap in the experiences their subjects recoun...
Unique Psychological Mechanisms Underlying Psilocybin Therapy Versus Escitalopram Treatment in the Treatment of Major Depressive Disorder
International Journal of Mental Health and Addiction – March 07, 2024
Summary
A compelling finding in clinical psychology reveals that Psilocybin Therapy's unique antidepressant effects for Major depressive disorder are strongly linked to acute psychological experiences. In a phase 2 trial over a 6-week period, compared to Escitalopram, profound "mystical experience" and "ego dissolution" uniquely mediate Psilocybin's positive impact. This work, part of ongoing Psychedelics and Drug Studies in psychiatry, suggests that these intense subjective states, perhaps guided by a psychotherapist, are crucial. Higher reported levels of such experiences correlate with greater improvement, offering insights into novel antidepressant approaches.
Abstract
Abstract The mechanisms by which Psilocybin Therapy (PT) improves depression remain an important object of study, with scientists actively explorin...
Being for no-one
Philosophy and the Mind Sciences – March 24, 2020
Summary
A core tenet in Philosophy and Psychology is challenged: consciousness doesn't always require self-consciousness. Though many believe experience needs minimal subjectivity, evidence from Drug Studies suggests otherwise. Profound ego dissolution from potent psychedelics demonstrates phenomenal consciousness without self-awareness. Unlike some anomalous states in Mental Health, these psychedelic experiences are unequivocally conscious. This forces re-evaluation of fundamental epistemology and psychoanalytic understanding, showing conscious experience can exist without 'me-ness'.
Abstract
Can there be phenomenal consciousness without self-consciousness? Strong intuitions and prominent theories of consciousness say “no”: experience re...
Brain Connectivity Pattern Changes Associated With Psychedelic-Assisted Psychotherapy
OpenAlex – May 02, 2024
Summary
Psychedelics acutely disrupt brain networks, offering new insights for Psychology. Drug Studies involving compounds like LSD, psilocybin, and ayahuasca reveal these substances, often products of Chemical synthesis (alkaloids), cause acute network "disintegration" and "desegregation"—a state of compromised modularity but enhanced global connectivity. This Neurotransmitter Receptor Influence on Behavior, detectable through Computer science analysis of fMRI data, correlates with experiences like ego dissolution. Later, increased default mode network integrity appears. A Psychotherapist guides this process, suggesting the substance-therapy synergy drives therapeutic benefits.
Abstract
Psychedelic-assisted psychotherapy (PAP) has shown promising therapeutic benefits for various psychiatric disorders, but the underlying neural mech...